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1. First of all, the two undamped multi-freedom torsional vibration models of DMF under idling and driving condition are built based on the principles of vehicle power train equivalent torsional model.

2. The torsional vibration of shafting seems to be even more important because it concerns the safety and reliability of the ship.

3. In this paper a torsional vibration model of step shaft elastically distributed structure is established for turbo generator rotor shaft system.

4. Improvements considering torsional spring effect and boundary effect are developed to standard method.

5. Parameters of torsional spring are optimized by the nonlinear optimal toolbox in MATLAB.

6. By using the torsional braid analysis (TBA), We have investigated the dynamic mechanical behavior of polyphenylene sulfide (PPS).

7. In the present analysis torsional oscillation of a rigid disk in an infinite transversely isotropic elastic cylinder has been considered.

8. This paper described the theory of optical torsional spring technique and its application in high precision measurement.

9. It is found the composite material rod exhibits torsional vibration band gaps.

10. Torsional vibrations of a rigid disk resting on saturated medium with an elastic superstratum are studied by analytical methods.

11. A portable torsional vane shear device has been developed to meet the needs of research work in marine geology, river exploration, geotechnics, oil drilling and soil mechanics.

12. An unified mathematical system which couples torsional vibration equation and circuit equation of a synchronous machine is proposed in this paper.

13. The stress intensity factors of torsional cylinder with ring crack are calculated.

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14. There would be an advantage, however, in using a stiffer-shafted club because the resulting higher torsional stiffness increases accuracy.

15. So it is concluded that rational bearing arrangement can avoid big torsional response and bearing separation.

16. Interfacial adhesion strength of composite is characterized by the methods of torsional braid analysis.

17. The new scheme is put forward to design magnetic pulley with large torsional moment by means of planar contact between end-cover and added flange fixed axially by stud bolt.

18. Torque is measured by equilibrant method in virtue of torque transducer and torsional angle is measured in virtue of photoelectric coder on conventional experimental machine.

19. AIM : To analyze the stress distribution of the endodontic instruments subjected to bending and torsional loads.

20. In rotating machinery system, the flexible coupling not only plays a part in transmitting the torque , but also in reducing the torsional impact.

21. Wind acceleration response of twin - tower tall building having lateral - torsional uncoupled are analyzed using modal analyses method.

22. This paper presented a mixed state equation and its solution for the torsional vibration of a homogeneous shaft with identical cross section.

23. A novel index named comprehensive unit interaction factor is proposed to quantify the torsional interaction in an AC system with multiple HVDC converters.

24. This paper discusses one type of micromechanical accelerometer with torsional pendulum.

25. This paper introduces the computation method on the harmonic frequency of the torsional vibration in the mechanism of an antenna system.

26. Increasing the width of the proximal portion of the stem to better fill the metaphysis increases the torsional stability of the femoral component, especially when it is implanted without cement.

27. In order to reveal the cause and mechanism of the vibrations, a torsional vibration model of tower was set up based on the structure and principle of the yawing system.

28. Static secant modulus of rigidity is determined from the torque-twist curve of torsional test.

29. The damping capacity is rapidly improved with the increase of torsional strain amplitude, and remains unchanged with further increase of torsional strain amplitude.

30. But movement mode of screw pump is rotating motion. Bearing force mode of rod has been changed from tensile to torsional. So, the threadless rod is often generated fracture and trip.