外挂物连续投放和非对称投放动载荷计算  

CALCULATION OF DYNAMIC LOADS FOR RIPPLE EJECTION ANDUNSYMMETRICAL EJECTION OF EXTERNAL STORE

作　　者：郑诚行[1] 魏立新[1] 肖小玲[1] 

机构地区：[1]成都飞机设计研究所

出　　处：《航空学报》1998年第4期424-429,共6页Acta Aeronautica et Astronautica Sinica

摘　　要：以求解广义动力学方程为基础，分析了飞机在外挂物弹射投放时所引起的动载荷问题，实现了用直接矩阵提取方法（ＤＭＡＰ）计算外挂物连续投放动载荷；用半机模型计算全机外挂物非对称投放动载荷；以及未投放外挂物的多自由度动载荷计算问题。计算结果表明，该方法能有效地解决飞机的各种动载荷问题。Based on solving the generalized dynamic equation, and analyzing the problems of dynamic loads of the aircraft due to the ejection of an external store, various calculations were realized including the dynamic loads of ripple ejection by using Direct Matrix Abstraction Program(DMAP), the dynamic loads of a complete aircraft of unsymmetrical ejection by using a half aircraft model, and the dynamic loads of multi degree of freedom on the suspended store due the ejection of the other store. The results of calculation show that the method of this report can be effectively used to solve the different problems of dynamic loads of the aircraft.

关 键 词：结构动力 外挂物 动响应 飞机 投放载荷 

分 类 号：V215.1[航空宇航科学与技术—航空宇航推进理论与工程]