Torsional Vibration Signal Simulation and Analysis of Dual-mass Flywheel Based on LabVIEW

The torsional vibration of the engine has an important impact on car's safety and ride comfort. Dual-mass flywheel, as a new type component of transmission system can reduce the engine output shaft's torsional vibration effectively. Based on the analysis of torsional vibration waveform, the paper proposes a detection method for DMF and brings forward a virtual instrument simulation test system using LabVIEW development platform. The system can achieve the functions of torsional vibration signal simulation, acquisition and the subsequent analysis of time-domain and frequency domain. Thus it provides a reference method for dual-mass flywheel test of vibration and noise reduction.