This response of torsional vibration can be decreased by properly arranging the structural plane,reducing the distance of mass and stiffness centre of the structure,properly controlling the ratio of the first-order torsional vibration period to the first-order lateral vibration period.

The main factors effecting on dynamic enlargement of the response of torsional vibration are analysed and some suggestions on aseismic design considering the response of torsional vibration are presented.

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.