ABSTRACT
In this work, the vibration responses of the mechanical system with an impact on revolute clearance joints are investigated numerically. The intra-joint contact forces that are generated at clearance joints are computed by considering several different elastic and dissipative approaches. Once the contact forces approach is adopted, the contact force model becomes the important factor that influences the precision of the simulation results. A well-known slider–crank mechanism with a revolute clearance joint is utilized to perform the investigation. The effects of the contact force models on vibration responses of the mechanical system with revolute clearance joints are analyzed by time domain responses and frequency domain analysis by utilizing Fast Fourier Translation (FFT). The investigation results show that the dynamic responses of the mechanical system with clearance are obviously vibration and the amplitude increases from an ideal mechanism without clearance.
