用动态子结构法分析火箭炮的振动特性

本文着重在微机上用多重动态子结构法分析了某型多管火箭炮的振动特性,编制了能在微机上求解一般大型复杂结构模态参数的DTZJG程序,计算了火箭炮在几种工况下的模态参数,为了考察DTZJG程序的性能,在大型计算机上用通用程序SAP6计算了某工况下火箭炮的模态参数,结果表明用该DTZJG程序识别大型复杂结构的模态参数,不仅精度能满足工程要求,而且还能节省大量内存和CUP时间。

ANALYSISING THE DYNAMICAL CHARACTERISTICS OF CERTAIN MULTIPLE ROCKET

This paper has an emphasis on the analysis of dynamical cha- racteris of certain multipile rocket launcher with the help of personal computer. The program DTZJG has been compiled and can be used for the numerical computation of mode parameters of ordinary large complex structures in a PC. A computation is carried out for made parameters of s-veral working conditions to examine function of the program DTZJG, we have computed mode parameters of rocket launcher of some working conditions by using the general program SAP6 on a large computer. When mode parameters of large complex structure are computed by using the program DTZJG, the results show that, not only the computation- al precision is reliable in engineering, but also a great deal of CPU time and memory can be saved, and it is suitable to run in a personal computer.