火箭发动机六分力试验系统力学和误差特性

为避免火箭发动机推力偏心测试中不合理的试验台结构方案给测试带来较大的误差,研究了用于测试火箭发动机推力偏心量的六分力试验系统的力学和误差特性.对于给定的方案,根据力学原理按理想状态得到推力偏心与各分力之间的关系,确定了传感器的量程并计算该结构方案中由传感器的精度所引起推力偏心的误差值.对该方案进行了评价.该分析方法为设计合理的六分力试验系统提供了帮助.

Mechanical and Error Characteristics of Rocket Engine Thrust Vector Test System

To avoid the errors casused by inconsiderate structure of test-bed in rocket engine thrust misalignment measurement,the mechanical and error characteristics of rocket engine thrust vector test system used to survey thrust misalignment of rocket engine was studied.With a certain scheme,the relationship between thrust misalignment value and components of main thrust force in ideal state was obtained based on mechanical principle,the errors of thrust misalignment caused by the range and precision of sensors we...