In order to study the low-frequency torsional vibration response of a driveline excited by the road,surface roughness,a numerical model to study the dynamic behaviour of the automobile power train was set up.

Aiming at to the question that sticking phenomenon of tapping and bad thread quality on metal matrix composite Al2O3p/Al, the reason of question and the mechanism of low-frequency torsional vibration tapping are analyzed.

Study on torsional vibration frequency of board spring sawblade strain system of band-saw mill;

Study on ultrasonic torsional vibration and equivalent circuit of thin annular resonator;

Analysis of torsional vibration of a spur gear system with faults;

Research on the mechanical model and natural frequencies of torsion vibration of the rod string of screw production systems;

Discussion for the influence on downhole temperature on torsion vibration natural frequencies of drill strings;

Study on torsion vibration of vehicle power train;

The twisting vibration characteristic analysis of the sucker rod string for progressing cavity pump oil production system;

On the basis of the analysis of the twisting vibration of rotary sucher-rod string, a formula of calculating every harmonic vibration eigenfrequency is presented.

The paper introduces the main noise resource of the setting of motor and pump,the usual connection manner of mo- tor and pump and proposes the connection manner used in the paper;also it analyzes and simulates the twisting vibration of the axes.

Research on torsional oscillation characteristics of single pile embedded in isotropic elastic foundation;

Study on the torsional oscillations of single pile embedded in layered foundation

Characteristics of torsional oscillations of a rigid disc on saturated poroelastic grounds are studied by analytical method for the first time.