微型固体火箭发动机推力测量

Thrust Measurement of Micro-Solid Rocket Motors

通过对推力测量系统的分析，并根据微型固体火箭发动机的特点，采用减轻试验系统活动部份的质量，并对传感器施加预紧力、增强试验系统的刚性等技术措施，在微型固体火箭发动机的推力测量中有效地抑制了二阶振荡。文中还对传感器加预紧力的几个问题作了介绍。

ased onanalyzing the thrust measurement system and considering the characteristics the secondorder oscillation of thrust measurement of micro-solid rocket motors can be suppressed effectively by means of reducing the mass of the movable part,strengthening the stiffness of the test system and applying a prestressing force on the transducer etc. Some problems of exerting prestressing force on the transducer are presented as well.