多轴振动
1.New Virtual Instrument Monitoring Power Condition of ICE Based on AngularVibration of Crankshaft
2.It has been proved herein, by applying the theory of bearing lubricating system, the redislri bution of bearing load and the change of bearing dynamic characteristics may affect the inher eni mechanism of shaft vibration when the central line of the bearings changes due to the changes in elevation of bearings in the multibearing turbo generator set in operation.
3.The paper used methods of multi-computer communication, COM port communication and program groupware combined with externally portable hardware to develop portable crankshaft torsional vibration measurement and diagnosis system (PTVM ) by C++ Builder software on the basis of torsional vibration measurement system (TVM). The system can be classified into two parts.
4.Based on the theory of the concentrated parameter, a three-dimensional dynamic model with multiple degrees of freedom for coupling vibration of a spiral bevel gear transmission system was developed, in which the flexional, torsional, axial and rotational motions were considered.
6.The boundary element method(BEM) fot compressible fluid and the improved multi-segmental transfer matrix method of thin, elastic axisymmetric shells is employed to solve the coupled vibration of shell filled with fluid.
7.Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to Fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations .The result shows that response of both sides support is synchronous when load distribution non-uniform coefficient is 1.
