摘要
有变化的戳的灵活旋转车辆的动态反应被调查。变化的戳作为在经常的戳上附加的一系列简单泛音部件被建模。纵的运动的分析解决方案被联合运动方程和边界条件获得，然后，火箭的横向的弯曲被检验由考虑与改变参数强迫颤动的 a coupled 解决了。有变化结束的戳的一枚火箭的数字解决方案被学习。侧面的颤动和火箭的运动态度取决于改变戳到大程度，和重要现象的频率，这被显示出，跳动，也许发生。建议途径与那些标准数字技术相比更精确、有效。
The dynamic response of a flexible spinning vehicle with the varying thrust was investigated. The varying thrust was modeled as a series of simple harmonic components superimposed on a constant thrust. The analytical solutions for longitudinal motion were obtained by combining the motion equations and boundary conditions, and then, the transverse bending of rocket was examined solved by considering a coupled forcing vibration with varying parameters. Numerical solutions for a rocket with end-varying thrust were studied. It is shown that the lateral vibrations and motion attitudes of rocket depend on the frequencies of varying thrust to great extent, and an important phenomenon, beating, maybe take place. The proposed approach is more accurate and efficient in comparison to those standard numerical techniques.
基金
Project supported by the Science Foundation of Shanghai Municipal Commission of Education (Grant No.98AJ01)
the Natural Science Foundation of Shanghai Municipal Commission of Science and Technology (Grant No.03ZR14032)
