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.

31. Nonlinear finite element meth od is used to analyse the static behavior of cold -formed light- gage C-purlins when diaphragm lateral- bracing and torsional restraint arc taken into account.

32. Conclusion Cross-linkage provided increased torsional stiffness of posterior spinal construct.

33. Torsional microslip at the clamps results in spurious torques which act like pivot friction torques.

34. The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising.

35. This paper presents the structural features and characteristics of the radial impact tester, torsional fatigue tester, rotary bending tester and radial load tester used for the tests.

36. Returnability is affected mainly by automobile velocity, torsional stiffness of steering system and caster angle and relatively little by viscous friction coefficient of steering system.

37. According to the theory of single cylindrical helical torsional spring, the cylindrical helical spring in double direction was designed to realize the test of torsion.

38. Thirdly, the design model and design method of DMF are verified by torsional vibration experiments under idling condition and static stiffness experiment.

39. The connecting device can effectively reduce the torsional rigidity of the truck bed on the chassis in the condition of the reliability of the truck bed not being affected.

40. This paper introduces the design plan of a coupling for high precision axle-angle position coder, the rigidity is small except torsional.

41. The method of add-on torsional spring is used in this paper to optimize the dynamical property of air-jet loom, and the good effect is achieved.

42. A nonlinear full range analysis of torque-twist relationship of torsional member taking into account the gradual increase in strain on the concrete surface is discussed in this paper.

43. A physical model of the active control of torsional wave is set up in this paper. Dinfluence of error sensor and secondary source on the optimal control results is studied.

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44. The torsional vibration, longitudinal vibration and ben- ding vibration of slender shaft in lathing because of axial feeding are calculated and analyzed.

45. This method has been proved to be very convenient to fix the position of torsional centre and calculate the sectorial coordinate.

46. Torsional and bending load spectra of drive shaft are worked out and fatigue life of the shaft estimated.

47. As missile-vertical-launcher hatch and bomb crevasse in war vessel would weaken ship hull's torsional stiffness, it was full necessary to study naval vessel's torsional strength.

48. The continuous model is adopted in the torsional vibration frequency and resonance of shaft system, the lumped parameter equivalent applied in the sub-synchronous resonance.

49. Based on experimental data, dynamic torques of turbine and pump are shown as algebraic equations, and dynamic torsional damping of the hydraulic torque converter is estimated.

50. Presents a torsional vibration model during the flameout of a cylinder with the system matrix method.

51. K Instead of a k now, we have kappa, which is what we call the torsional spring constant, and now we have an angle which we call theta.

52. The torsional model is solved by numerical method by considering the boundary condition and initial condition.

53. In order to improve the clutch disk device, in particular with regard to its torsional vibration damping capacity, the receptacle for the fixing element in the side disk opens radially outwards.

54. The results indicated that the cylinder helix torsional spring could better achieve the function. It is concluded that the method can meet the design requirements.

55. The torsion bar absorbs torsional vibrations and isolates torsional vibrations due to inertia of the balance shaft caused by the crankshaft.

56. Based on the torsional displacement transfer function of the asymmetric structure with MTMD, the analytical expression is developed for the torsional displacement dynamic magnification factor.

57. Methods After CCC failured and transmitted to open canner, 17 eyes of 17 cases were performed torsional mode combined with rotated chipping phacoemulsification in cataract surgery.

58. This paper is intended to provide an analytical and experimental study of torsional vibration of the automobile power train.

59. On the basis of synthetical test, the paper analysed the torsional vibration of the main drive system of 1150 blooming mill, which used thyristor power supply.

60. Every part of the compound ultrasonic torsional vibration horn is equivalent to a four-terminal network in this paper. Simplify the networks by multi-plying the matrices.

61. The utility model relates to a rotary-vane vacuum pump, which provides a column spiral torsional spring which is used for replacing a column spiral compressing spring.

62. A new method of achieving steel band tension by using cylinder helix torsional spring was presented in the course of studying the gapless linear transmission system.

63. Axial steel struts of crisscross section need to be checked on torsional buckling.

64. Taken the lateral flexural rigidity of stiffener, the flexural rigidity in its plane and the torsional rigidity into consideration.

65. The influence to stress of skew arch bridge was studied by changing the abutment torsional stiffness and width-span ratio.

66. The effective methods for controlling the torsional response are put forward by adjusting the torsional stiffness and damping of flexible jointer.

67. Dispersion and attenuation characteristics of torsional modes of ultrasonic guided wave in pipe with viscoelastic coating are investigated.

68. Optimization design was carried out on the rigidity coefficient of its key component- torsional spring by means of ADAMS software.

69. It is studied the ( lateral ) - torsional coupling vibration on the magnetic tensile force of a generator rotor.

70. This method can more truly simulate states of vehicle running by adjusting revolving speed, load and hydraulic oscillating cylinder generating torsional vibration.

71. When the central angle is increased(/torsional.html), the torsional effect and the transversaldisplacement is obvious.

72. A kind of primary idea on surveying dynamic torsional damping aluminum cable steel reinforced is presented and relating expression is derived from varying principium.

73. The paper introduces a kind of calculator data collect system in torsional spring test and puts forward a method with high precision and high efficiency.

74. The first two natural frequencies and the relevant modal functions are obtained numerically and the contributions of the transporting velocity and the torsional spring coefficient are discussed.