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

Автор: Bo0mB0om » 12 февраля 2016
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"
English | ISBN: 1118359410 | 2014 | 260 pages | PDF | 19 MB




Advances in methods of gear design and the possibility ofpredicting the sound pressure level and life time of gearboxes andperfect instrumentation of test stands allows for the production ofa new generation of quiet transmission units. Current literature ongearbox noise and vibration is usually focused on a particularproblem such as gearbox design without a detailed description ofmeasurement methods for noise and vibration testing.

addresses this need and comprehensively covers the sources of noiseand vibration in gearboxes and describes various methods of signalprocessing. It also covers gearing design, precision manufacturing,measuring the gear train transmission error, noise test on testingstands and also during vehicle pass-by tests.

The analysis tools for gearbox inspection are based on thefrequency and time domain methods, including envelope and averagetoothmesh analysis. To keep the radiated noise under control, theeffect of load, the gear contact ratio and the tooth surfacemodification on noise and vibration are illustrated by measurementexamples 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 casestudy covering how to successfully reduce transmission noise
Describes the procedure for the measurement and calculation ofthe angular vibrations of gears during rotation
Considers various signal processing methods including order analysis, synchronous averaging, Vold-Kalman order trackingfiltration and measuring the angular vibration
is acomprehensive reference for designers of gearing systems and testengineers in the automotive industry and is also a useful source ofinformation for graduate students in automotive and noiseengineering.








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