Abstract
Abstract The author presents the design and development of vibration performance detection and analysis system for commercial vehicles based on the theory of mechanical vibration performance testing and analysis theory, vibration signal acquisition and time domain analysis theory and Fourier transform principle.. The system performs the functions of data acquisition, signal analysis, spectrogram display, data storage, control output and time domain and frequency domain. Further, this system is used to test the vibration of commercial vehicles on the road to verify the integrity and reliability of the system function. The results of the experiments show that all functions of the system achieved the system design goals, and moreover, it shows that the system has strong practicability and high economy.
Highlights
Vibration is a ubiquitous natural phenomenon, and is an unavoidable movement phenomenon of motion producing dynamic loads
Since time domain analysis is a direct method to analyse the system in time domain, it has the advantages of intuition and accuracy
The Fourier transform is divided into discrete Fourier transform (DFT) and fast Fourier transform (FFT)
Summary
Vibration is a ubiquitous natural phenomenon, and is an unavoidable movement phenomenon of motion producing dynamic loads. MEscopeVES, Cada-X system by LMS company of Belgium, I-DEAS system by MTS company of USA, data acquisition software of Ni company of USA, DSPS dynamic signal acquisition and analysis system and MAS modal analysis software developed by RION company of Japan, DASP system of Beijing Dongfang Institute of vibration and noise technology, VAMS system of Nanjing University of Aeronautics and Astronautics, etc In recent times, it has become a hot spot of research topic in the automotive field and further how to carry out the vibration signal acquisition of the Automobiles, vibration testing analysis and scientific evaluation of the quality of vehicle operation effectively. It has become a difficult research topic concerned with necessary measures to be taken, such as optimising mechanical structure and damping design, to reduce and suppress vehicle vibration
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