小推力液体火箭发动机动态推力测试台架设计  

Design of thrust test-bench for low-thrust liquid rocket engine dynamic testing

作　　者：董洪强[1] 袁杰红[1] 

机构地区：[1]国防科学技术大学,湖南长沙410072

出　　处：《中国测试技术》2007年第2期38-41,44,共5页CHINA MEASUREMENT & TESTING TECHNOLOGY

摘　　要：推力测试台架是准确测量火箭发动机推力的关键技术之一,但现有的测试台架能够很好兼顾长、短脉冲测试的较少。针对此况,采用传感器陶瓷厚膜技术,设计了100N范围内小推力液体火箭发动机动态推力测试台架,通过热试车试验考核,该台架可兼顾长、短脉冲的测量,在满足稳态精度的同时,具有良好的动态特性,为小推力液体火箭发动机测试台架的设计提供了一种新思路。Thrust test-bench is one of the key technologies for accurate measure of rocket engine thrust. But testbenches that can compromise with beth long and short burst measurement are quite few. This article adopted thick ceramic film technology for strain transducer and designed a dynamic thrust test-bench for low-thrust liquid rocket engine within lOON. Hot firing test shows that this test-bench can be used for beth long and short impulse testing. Besides fulfilling the requirement for steady state precision, it presents favorable dynamic ability. It provides a new track of test-bench design for low-thrust liquid rocket engine.

关 键 词：小推力 液体火箭发动机 测试台架 动态 设计 

分 类 号：V448.253[航空宇航科学与技术—飞行器设计]