离心试验中摆动角加速度的模拟方法

A simulation method of oscillating angular acceleration in the centrifugal test

本文介绍通过调整皮囊压力的大小和分布来模拟飞行器在飞行状态下的摆动角加速度的优化设计方法,以消除现有离心实验中结构受到的不平衡力矩,并考虑摆动角加速度对结构关键部位的影响。数值算例表明,采用皮囊压力的优化设计方法,在地面离心试验中能够有效地模拟飞行状态的摆动角加速度。该方法具有方便可行的特点。

This paper introduces the optimization design method of simulating aerocraft＇s oscillating angular acceleration in flight by adjusting aerodynamic load. Numerical sample indicates that this method is one of effective and feasible methods in centrifugal test simulating aerocraft＇s flight status.