cnbtr 5pcs vdm6 20x20mm malethread rubber anti vibration damping down noise



Jian Pang Noise and Vibration Control in Automotive Bodies Jian Pang Noise and Vibration Control in Automotive Bodies Новинка

Jian Pang Noise and Vibration Control in Automotive Bodies

A comprehensive and versatile treatment of an important and complex topic in vehicle design Written by an expert in the field with over 30 years of NVH experience, Noise and Vibration Control of Automotive Body offers nine informative chapters on all of the core knowledge required for noise, vibration, and harshness engineers to do their job properly. It starts with an introduction to noise and vibration problems; transfer of structural-borne noise and airborne noise to interior body; key techniques for body noise and vibration control; and noise and vibration control during vehicle development. The book then goes on to cover all the noise and vibration issues relating to the automotive body, including: overall body structure; local body structure; sound package; excitations exerted on the body and transfer functions; wind noise; body sound quality; body squeak and rattle; and the vehicle development process for an automotive body. Vehicle noise and vibration is one of the most important attributes for modern vehicles, and it is extremely important to understand and solve NVH problems. Noise and Vibration Control of Automotive Body offers comprehensive coverage of automotive body noise and vibration analysis and control, making it an excellent guide for body design engineers and testing engineers. Covers all the noise and vibration issues relating to the automotive body Features a thorough set of tables, illustrations, photographs, and examples Introduces automotive body structure and noise and vibration problems Pulls together the diverse topics of body structure, sound package, sound quality, squeak and rattle, and target setting Noise and Vibration Control of Automotive Body is a valuable reference for engineers, designers, researchers, and graduate students in the fields of automotive body design and NVH.
Jiri Tuma Vehicle Gearbox Noise and Vibration. Measurement, Signal Analysis, Signal Processing and Noise Reduction Measures Jiri Tuma Vehicle Gearbox Noise and Vibration. Measurement, Signal Analysis, Signal Processing and Noise Reduction Measures Новинка

Jiri Tuma Vehicle Gearbox Noise and Vibration. Measurement, Signal Analysis, Signal Processing and Noise Reduction Measures

Advances in methods of gear design and the possibility of predicting the sound pressure level and life time of gearboxes and perfect instrumentation of test stands allows for the production of a new generation of quiet transmission units. Current literature on gearbox noise and vibration is usually focused on a particular problem such as gearbox design without a detailed description of measurement methods for noise and vibration testing. Vehicle Gearbox Noise and Vibration: Measurement, Signal Analysis, Signal Processing and Noise Reduction Measures addresses this need and comprehensively covers the sources of noise and vibration in gearboxes and describes various methods of signal processing. It also covers gearing design, precision manufacturing, measuring the gear train transmission error, noise test on testing stands and also during vehicle pass-by tests. The analysis tools for gearbox inspection are based on the frequency and time domain methods, including envelope and average toothmesh analysis. To keep the radiated noise under control, the effect of load, the gear contact ratio and the tooth surface modification on noise and vibration are illustrated by measurement examples giving an idea how to reduce transmission noise. Key features: Covers methods of processing noise and vibration signals Takes a practical approach to the subject and includes a case study covering how to successfully reduce transmission noise Describes the procedure for the measurement and calculation of the angular vibrations of gears during rotation Considers various signal processing methods including order analysis, synchronous averaging, Vold-Kalman order tracking filtration and measuring the angular vibration Vehicle Gearbox Noise and Vibration: Measurement, Signal Analysis, Signal Processing and Noise Reduction Measures is a comprehensive reference for designers of gearing systems and test engineers in the automotive industry and is also a useful source of information for graduate students in automotive and noise engineering.
Sondipon Adhikari Structural Dynamic Analysis with Generalized Damping Models. Identification Sondipon Adhikari Structural Dynamic Analysis with Generalized Damping Models. Identification Новинка

Sondipon Adhikari Structural Dynamic Analysis with Generalized Damping Models. Identification

10264.95 руб. Найти похожее
Since Lord Rayleigh introduced the idea of viscous damping in his classic work «The Theory of Sound» in 1877, it has become standard practice to use this approach in dynamics, covering a wide range of applications from aerospace to civil engineering. However, in the majority of practical cases this approach is adopted more for mathematical convenience than for modeling the physics of vibration damping. Over the past decade, extensive research has been undertaken on more general “non-viscous” damping models and vibration of non-viscously damped systems. This book, along with a related book Structural Dynamic Analysis with Generalized Damping Models: Analysis, is the first comprehensive study to cover vibration problems with general non-viscous damping. The author draws on his considerable research experience to produce a text covering: parametric senistivity of damped systems; identification of viscous damping; identification of non-viscous damping; and some tools for the quanitification of damping. The book is written from a vibration theory standpoint, with numerous worked examples which are relevant across a wide range of mechanical, aerospace and structural engineering applications. Contents 1. Parametric Sensitivity of Damped Systems. 2. Identification of Viscous Damping. 3. Identification of Non-viscous Damping. 4. Quantification of Damping. About the Authors Sondipon Adhikari is Chair Professor of Aerospace Engineering at Swansea University, Wales. His wide-ranging and multi-disciplinary research interests include uncertainty quantification in computational mechanics, bio- and nanomechanics, dynamics of complex systems, inverse problems for linear and nonlinear dynamics, and renewable energy. He is a technical reviewer of 97 international journals, 18 conferences and 13 funding bodies.He has written over 180 refereed journal papers, 120 refereed conference papers and has authored or co-authored 15 book chapters.
Anders Brandt Noise and Vibration Analysis. Signal Analysis and Experimental Procedures Anders Brandt Noise and Vibration Analysis. Signal Analysis and Experimental Procedures Новинка

Anders Brandt Noise and Vibration Analysis. Signal Analysis and Experimental Procedures

10264.95 руб. Найти похожее
Noise and Vibration Analysis is a complete and practical guide that combines both signal processing and modal analysis theory with their practical application in noise and vibration analysis. It provides an invaluable, integrated guide for practicing engineers as well as a suitable introduction for students new to the topic of noise and vibration. Taking a practical learning approach, Brandt includes exercises that allow the content to be developed in an academic course framework or as supplementary material for private and further study. Addresses the theory and application of signal analysis procedures as they are applied in modern instruments and software for noise and vibration analysis Features numerous line diagrams and illustrations Accompanied by a web site at www.wiley.com/go/brandt with numerous MATLAB tools and examples. Noise and Vibration Analysis provides an excellent resource for researchers and engineers from automotive, aerospace, mechanical, or electronics industries who work with experimental or analytical vibration analysis and/or acoustics. It will also appeal to graduate students enrolled in vibration analysis, experimental structural dynamics, or applied signal analysis courses.
Sondipon Adhikari Structural Dynamic Analysis with Generalized Damping Models. Analysis Sondipon Adhikari Structural Dynamic Analysis with Generalized Damping Models. Analysis Новинка

Sondipon Adhikari Structural Dynamic Analysis with Generalized Damping Models. Analysis

10233.07 руб. Найти похожее
Since Lord Rayleigh introduced the idea of viscous damping in his classic work «The Theory of Sound» in 1877, it has become standard practice to use this approach in dynamics, covering a wide range of applications from aerospace to civil engineering. However, in the majority of practical cases this approach is adopted more for mathematical convenience than for modeling the physics of vibration damping. Over the past decade, extensive research has been undertaken on more general «non-viscous» damping models and vibration of non-viscously damped systems. This book, along with a related book Structural Dynamic Analysis with Generalized Damping Models: Identification, is the first comprehensive study to cover vibration problems with general non-viscous damping. The author draws on his considerable research experience to produce a text covering: dynamics of viscously damped systems; non-viscously damped single- and multi-degree of freedom systems; linear systems with non-local and non-viscous damping; reduced computational methods for damped systems; and finally a method for dealing with general asymmetric systems. The book is written from a vibration theory standpoint, with numerous worked examples which are relevant across a wide range of mechanical, aerospace and structural engineering applications. Contents 1. Introduction to Damping Models and Analysis Methods. 2. Dynamics of Undamped and Viscously Damped Systems. 3. Non-Viscously Damped Single-Degree-of-Freedom Systems. 4. Non-viscously Damped Multiple-Degree-of-Freedom Systems. 5. Linear Systems with General Non-Viscous Damping. 6. Reduced Computational Methods for Damped Systems
William Mark D. Performance-Based Gear Metrology. Kinematic - Transmission - Error Computation and Diagnosis William Mark D. Performance-Based Gear Metrology. Kinematic - Transmission - Error Computation and Diagnosis Новинка

William Mark D. Performance-Based Gear Metrology. Kinematic - Transmission - Error Computation and Diagnosis

10264.95 руб. Найти похожее
A mathematically rigorous explanation of how manufacturing deviations and damage on the working surfaces of gear teeth cause transmission-error contributions to vibration excitations Some gear-tooth working-surface manufacturing deviations of significant amplitude cause negligible vibration excitation and noise, yet others of minuscule amplitude are a source of significant vibration excitation and noise. Presently available computer-numerically-controlled dedicated gear metrology equipment can measure such error patterns on a gear in a few hours in sufficient detail to enable accurate computation and diagnosis of the resultant transmission-error vibration excitation. How to efficiently measure such working-surface deviations, compute from these measurements the resultant transmission-error vibration excitation, and diagnose the manufacturing source of the deviations, is the subject of this book. Use of the technology in this book will allow quality spot checks to be made on gears being manufactured in a production run, to avoid undesirable vibration or noise excitation by the manufactured gears. Furthermore, those working in academia and industry needing a full mathematical understanding of the relationships between tooth working-surface deviations and the vibration excitations caused by these deviations will find the book indispensable for applications pertaining to both gear-quality and gear-health monitoring. Key features: Provides a very efficient method for measuring parallel-axis helical or spur gears in sufficient detail to enable accurate computation of transmission-error contributions from working-surface deviations, and algorithms required to carry out these computations, including examples Provides algorithms for computing the working-surface deviations causing any user-identified tone, such as ‘ghost tones,’ or ‘sidebands’ of the tooth-meshing harmonics, enabling diagnosis of their manufacturing causes, including examples Provides explanations of all harmonics observed in gear-caused vibration and noise spectra. Enables generation of three-dimensional displays and detailed numerical descriptions of all measured and computed working-surface deviations, including examples
Hua-Tay Lin Advanced Ceramic Coatings and Interfaces IV Hua-Tay Lin Advanced Ceramic Coatings and Interfaces IV Новинка

Hua-Tay Lin Advanced Ceramic Coatings and Interfaces IV

This volume is a useful resource for understanding the most valuable aspects of advanced ceramic coatings and interfaces. Containing twelve contributed papers from the symposium, topics include vibration damping coatings, thermal and environmental barrier coating processing, testing and life modeling, non-destructive evaluation, multifunctional coatings and interfaces, highlighting the state-of-the-art ceramic coatings technologies for various critical engineering applications.
Christian Lalanne Mechanical Vibration and Shock Analysis, Sinusoidal Vibration Christian Lalanne Mechanical Vibration and Shock Analysis, Sinusoidal Vibration Новинка

Christian Lalanne Mechanical Vibration and Shock Analysis, Sinusoidal Vibration

15922.65 руб. Найти похожее
Everything engineers need to know about mechanical vibration and shock…in one authoritative reference work! This fully updated and revised 3rd edition addresses the entire field of mechanical vibration and shock as one of the most important types of load and stress applied to structures, machines and components in the real world. Examples include everything from the regular and predictable loads applied to turbines, motors or helicopters by the spinning of their constituent parts to the ability of buildings to withstand damage from wind loads or explosions, and the need for cars to maintain structural integrity in the event of a crash. There are detailed examinations of underlying theory, models developed for specific applications, performance of materials under test conditions and in real-world settings, and case studies and discussions of how the relationships between these affect design for actual products. Invaluable to engineers specializing in mechanical, aeronautical, civil, electrical and transportation engineering, this reference work, in five volumes is a crucial resource for the solution of shock and vibration problems. The relative and absolute response of a mechanical system with a single degree of freedom is considered for an arbitrary excitation, and its transfer function is defined in various forms. The characteristics of sinusoidal vibration are examined in the context both of the real world and of laboratory tests, and for both transient and steady state response of the one-degree-of-freedom system. Viscous damping and then non-linear damping are considered. The various types of swept sine perturbations and their properties are described and, for the one-degree-of-freedom system, the consequence of an inappropriate choice of sweep rate are considered. From the latter, rules governing the choice of suitable sweep rates are then developed.
Konstantinidis Dimitrios Mechanics of Rubber Bearings for Seismic and Vibration Isolation Konstantinidis Dimitrios Mechanics of Rubber Bearings for Seismic and Vibration Isolation Новинка

Konstantinidis Dimitrios Mechanics of Rubber Bearings for Seismic and Vibration Isolation

10728.03 руб. Найти похожее
Widely used in civil, mechanical and automotive engineer­ing since the early 1980s, multilayer rubber bearings have been used as seismic isolation devices for buildings in highly seismic areas in many countries. Their appeal in these applications comes from their ability to provide a component with high stiffness in one direction with high flexibility in one or more orthogonal directions. This combination of vertical stiffness with horizontal flexibility, achieved by reinforcing the rubber by thin steel shims perpendicular to the vertical load, enables them to be used as seismic and vibra­tion isolators for machinery, buildings and bridges. Mechanics of Rubber Bearings for Seismic and Vibration Isolation collates the most important information on the mechanics of multilayer rubber bearings. It explores a unique and comprehensive combination of relevant topics, covering all prerequisite fundamental theory and providing a number of closed-form solutions to various boundary value problems as well as a comprehensive historical overview on the use of isolation. Many of the results presented in the book are new and are essential for a proper understanding of the behavior of these bearings and for the design and analysis of vibration or seismic isolation systems. The advantages afforded by adopting these natural rubber systems is clearly explained to designers and users of this technology, bringing into focus the design and specification of bearings for buildings, bridges and industrial structures. This comprehensive book: includes state of the art, as yet unpublished research along with all required fundamental concepts; is authored by world-leading experts with over 40 years of combined experience on seismic isolation and the behavior of multilayer rubber bearings; is accompanied by a website at www.wiley.com/go/kelly The concise approach of Mechanics of Rubber Bearings for Seismic and Vibration Isolation forms an invaluable resource for graduate students and researchers/practitioners in structural and mechanical engineering departments, in particular those working in seismic and vibration isolation.
Wei Liu Hybrid Electric Vehicle System Modeling and Control Wei Liu Hybrid Electric Vehicle System Modeling and Control Новинка

Wei Liu Hybrid Electric Vehicle System Modeling and Control

10091.45 руб. Найти похожее
This new edition includes approximately 30% new materials covering the following information that has been added to this important work: – extends the contents on Li-ion batteries detailing the positive and negative electrodes and characteristics and other components including binder, electrolyte, separator and foils, and the structure of Li-ion battery cell. Nickel-cadmium batteries are deleted. – adds a new section presenting the modelling of multi-mode electrically variable transmission, which gradually became the main structure of the hybrid power-train during the last 5 years. – newly added chapter on noise and vibration of hybrid vehicles introduces the basics of vibration and noise issues associated with power-train, driveline and vehicle vibrations, and addresses control solutions to reduce the noise and vibration levels. – Chapter 10 (chapter 9 of the first edition) is extended by presenting EPA and UN newly required test drive schedules and test procedures for hybrid electric mileage calculation for window sticker considerations. In addition to the above major changes in this second edition, adaptive charging sustaining point determination method is presented to have a plug-in hybrid electric vehicle with optimum performance.
Демпфирующий материал Visaton Damping Material Демпфирующий материал Visaton Damping Material Новинка

Демпфирующий материал Visaton Damping Material

Синтетическая вата для демпфирования акустики. В упаковке 2 мата. Достаточно для заполнения приблизительно 20 литров. Вес упаковки 125 г. Размер одного мата 60 x 33 см. Толщина 1-го мата около 20 - 25 мм.
Colin Hansen H. Wind Farm Noise. Measurement, Assessment, and Control Colin Hansen H. Wind Farm Noise. Measurement, Assessment, and Control Новинка

Colin Hansen H. Wind Farm Noise. Measurement, Assessment, and Control

A comprehensive guide to wind farm noise prediction, measurement, assessment, control and effects on people Wind Farm Noise covers all aspects associated with the generation, measurement, propagation, regulation and adverse health effects of noise produced by large horizontal-axis wind turbines of the type used in wind farms. The book begins with a brief history of wind turbine development and the regulation of their noise at sensitive receivers. Also included is an introductory chapter on the fundamentals of acoustics relevant to wind turbine noise so that readers are well prepared for understanding later chapters on noise measurements, noise generation mechanisms, noise propagation modelling and the assessment of the noise at surrounding residences. Key features: Potential adverse health effects of wind farm noise are discussed in an objective way. Means for calculating the noise at residences due to a wind farm prior to construction are covered in detail along with uncertainty estimates. The effects of meteorological conditions and other influences, such as obstacles, ground cover and atmospheric absorption, on noise levels at residences are explained. Quantities that should be measured as well as how to best measure them in order to properly characterise wind farm noise are discussed in detail. Noise generation mechanisms and possible means for their control are discussed as well as aspects of wind farm noise that still require further research to be properly understood. The book provides comprehensive coverage of the topic, containing both introductory and advanced level material.
Israel Vibration Israel Vibration. The Same Song Israel Vibration Israel Vibration. The Same Song Новинка

Israel Vibration Israel Vibration. The Same Song

В 1976 году Israel Vibration записали свой первый сингл Same Song,а чуть позже на студии EMI вышел одноименный альбом, который принес группе международную известность.
Daniel Inman J. Vibration with Control Daniel Inman J. Vibration with Control Новинка

Daniel Inman J. Vibration with Control

An advanced look at vibration analysis with a focus on active vibration suppression As modern devices, from cell phones to airplanes, become lighter and more flexible, vibration suppression and analysis becomes more critical. Vibration with Control, 2nd Edition includes modelling, analysis and testing methods. New topics include metastructures and the use of piezoelectric materials, and numerical methods are also discussed. All material is placed on a firm mathematical footing by introducing concepts from linear algebra (matrix theory) and applied functional analysis when required. Key features: Combines vibration modelling and analysis with active control to provide concepts for effective vibration suppression. Introduces the use of piezoelectric materials for vibration sensing and suppression. Provides a unique blend of practical and theoretical developments. Examines nonlinear as well as linear vibration analysis. Provides Matlab instructions for solving problems. Contains examples and problems. PowerPoint Presentation materials and digital solutions manual available for instructors. Vibration with Control, 2nd Edition is an ideal reference and textbook for graduate students in mechanical, aerospace and structural engineering, as well as researchers and practitioners in the field.
V. Chandrasekaran C. Rubber as a Construction Material for Corrosion Protection. A Comprehensive Guide for Process Equipment Designers V. Chandrasekaran C. Rubber as a Construction Material for Corrosion Protection. A Comprehensive Guide for Process Equipment Designers Новинка

V. Chandrasekaran C. Rubber as a Construction Material for Corrosion Protection. A Comprehensive Guide for Process Equipment Designers

13506.51 руб. Найти похожее
First book on rubber used as a construction material dedicated to the chemical process industry Despite the long history of rubber as a construction material, this book is a unique publication as it comprehensively looks at the material with respect to the anti-corrosion requirements of the multitude of industries where rubber is used, both on land and offshore. This guide documents how rubber reliably meets the threats of corrosion and contributes to the longevity of the equipment. Chapters on ebonite, natural, and synthetic rubbers, examine their relevant properties and chemical resistance. The book details the practical aspects and handling of rubber lined equipment: thin-walled structures, vacuum vessels, ducts, large diameter tanks, agitators, and fully lined pipes (both inside and outside). Molded and fabricated products of ebonite and soft rubber as well as hand-made rubber products are shown along with vulcanization technology, testing and inspections, measurements and standards. Several case studies are included demonstrating the preferential choice of rubber as a construction material as well as practical applications and techniques of its usage in the chlor-alkali, fertilizer, mineral processing and other core chemical processing industries, which are the largest consumers of rubber as a material of construction. The volume ends with a section on aging and prediction of service life. Rubber as a Construction Material for Corrosion Protection will be used by chemical engineers, rubber technologists, students, research workers worldwide in the rubber industry and process industries such as fertilizer, mining and ore, oil & gas, paper and pulp, steel plants, as well as people engaged in corrosion protection. The book will also be very useful to the construction industry.
Майка классическая Printio Terror noise division Майка классическая Printio Terror noise division Новинка

Майка классическая Printio Terror noise division

Майка классическая — цвет: белый, пол: Муж. Очень брутальная футболка с очень брутальным принтом. Выбор брутальных людей.
Майка классическая Printio Terror noise division Майка классическая Printio Terror noise division Новинка

Майка классическая Printio Terror noise division

Майка классическая — цвет: белый, пол: Жен. Очень брутальная футболка с очень брутальным принтом. Выбор брутальных людей.
Лонгслив Printio Terror noise division Лонгслив Printio Terror noise division Новинка

Лонгслив Printio Terror noise division

Лонгслив — цвет: белый, пол: Муж. Очень брутальная футболка с очень брутальным принтом. Выбор брутальных людей.
Сумка Printio Terror noise division Сумка Printio Terror noise division Новинка

Сумка Printio Terror noise division

Сумка. Очень брутальная футболка с очень брутальным принтом. Выбор брутальных людей.
Душевая стойка River Lux 20 2 Душевая стойка River Lux 20 2 Новинка

Душевая стойка River Lux 20 2

ДУШЕВАЯ СИСТЕМА: Регулируемая штанга. MIN 91 см - MAX 144 см. Нержавеющая сталь, хром. Ручной Душ: 3 функции, хром/серый, d 100 мм. Регулируется угол наклона. Смеситель высококачественный латунно-медный сплав. На соединении 6 сальников для прочности. Шланг: 1,5 м ANTI-TWIST (не скручивается). Поворот шланга 360 град. Латунные гайки с обеих сторон шланга. Мыльница в комплекте. На переходниках система ANTI-NOISE (бесшумная). На верхнем и ручном душе система EASY CLEAN (легкая очистка).
Душевая стойка River Lux 40 3 Душевая стойка River Lux 40 3 Новинка

Душевая стойка River Lux 40 3

ДУШЕВАЯ СИСТЕМА: Регулируемая штанга. MIN 91 см - MAX 144 см. Нержавеющая сталь, хром. Ручной Душ: 1 функция, хром, 80/100 мм. Регулируется угол наклона. Смеситель высококачественный латунно-медный сплав. Шланг: 1,5 м ANTI-TWIST (не скручивается). Поворот шланга 360 град. Латунные гайки с обеих сторон шланга. На переходниках система ANTI-NOISE (бесшумная). На верхнем и ручном душе система EASY CLEAN (легкая очистка). НАЛИВ ВОДЫ В ВАННУЮ.
Душевая стойка River Lux 20 3 Душевая стойка River Lux 20 3 Новинка

Душевая стойка River Lux 20 3

ДУШЕВАЯ СИСТЕМА: Регулируемая штанга. MIN 91 см - MAX 144 см. Нержавеющая сталь, хром. Ручной Душ: 3 функции, хром/серый, d 100 мм. Регулируется угол наклона. Смеситель высококачественный латунно-медный сплав. На соединении 6 сальников для прочности. Шланг: 1,5 м ANTI-TWIST (не скручивается). Поворот шланга 360 град. Латунные гайки с обеих сторон шланга. Мыльница в комплекте. На переходниках система ANTI-NOISE (бесшумная). На верхнем и ручном душе система EASY CLEAN (легкая очистка). НАЛИВ ВОДЫ В ВАННУЮ.
Alan Palazzolo Vibration Theory and Applications with Finite Elements and Active Vibration Control Alan Palazzolo Vibration Theory and Applications with Finite Elements and Active Vibration Control Новинка

Alan Palazzolo Vibration Theory and Applications with Finite Elements and Active Vibration Control

11191.11 руб. Найти похожее
Based on many years of research and teaching, this book brings together all the important topics in linear vibration theory, including failure models, kinematics and modeling, unstable vibrating systems, rotordynamics, model reduction methods, and finite element methods utilizing truss, beam, membrane and solid elements. It also explores in detail active vibration control, instability and modal analysis. The book provides the modeling skills and knowledge required for modern engineering practice, plus the tools needed to identify, formulate and solve engineering problems effectively.
Mi Noise Canceling Earphones Black Mi Noise Canceling Earphones Black Новинка

Mi Noise Canceling Earphones Black

Mi Noise Cancelling Earphones - высокотехнологичные проводные наушники с системой шумоподавления, созданные специально для ценителей звука. В зависимости от окружающей обстановки вы можете выбрать активное шумоподавление с частотой 50-1500 Гц или максимальное подавление шума на 20 дБ. Эргономичный дизайн вкладышей не доставит дискомфорта даже при длительном использовании.

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A mathematically rigorous explanation of how manufacturing deviations and damage on the working surfaces of gear teeth cause transmission-error contributions to vibration excitations Some gear-tooth working-surface manufacturing deviations of significant amplitude cause negligible vibration excitation and noise, yet others of minuscule amplitude are a source of significant vibration excitation and noise. Presently available computer-numerically-controlled dedicated gear metrology equipment can measure such error patterns on a gear in a few hours in sufficient detail to enable accurate computation and diagnosis of the resultant transmission-error vibration excitation. How to efficiently measure such working-surface deviations, compute from these measurements the resultant transmission-error vibration excitation, and diagnose the manufacturing source of the deviations, is the subject of this book. Use of the technology in this book will allow quality spot checks to be made on gears being manufactured in a production run, to avoid undesirable vibration or noise excitation by the manufactured gears. Furthermore, those working in academia and industry needing a full mathematical understanding of the relationships between tooth working-surface deviations and the vibration excitations caused by these deviations will find the book indispensable for applications pertaining to both gear-quality and gear-health monitoring. Key features: Provides a very efficient method for measuring parallel-axis helical or spur gears in sufficient detail to enable accurate computation of transmission-error contributions from working-surface deviations, and algorithms required to carry out these computations, including examples Provides algorithms for computing the working-surface deviations causing any user-identified tone, such as ‘ghost tones,’ or ‘sidebands’ of the tooth-meshing harmonics, enabling diagnosis of their manufacturing causes, including examples Provides explanations of all harmonics observed in gear-caused vibration and noise spectra. Enables generation of three-dimensional displays and detailed numerical descriptions of all measured and computed working-surface deviations, including examples
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