某型固体火箭发动机试车台推力测量分析及优化设计
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摘要
根据发动机试车台轴向推力测量和推力偏心测量要求,对试车台的台架结构进行了设计与分析。通过增加台架的动态特性,减小台架结构对测量准确度的影响;采取增加动架的轴向刚度和减小横向刚度设计,提高动架的固有频率,消除发动机启动时动架的振动影响等,满足了某型小推力火箭发动机测试要求。
According to the reguirements of axial thrust measurement and thrust eccentricity measurement of engine test bench,the structure of the test benchis designed and analyzed. The design enhances the dynamic characteristics of the bench to reduce the influence of the bench structure on the measurement accuracy. It increases the axial stiffness and reduces the lateral stiffness of the movableframe to raise the natural frequency of the frame and eliminates the vibration effect of the movable frame when starting the engine. The test bench has met the test requiremts of a small thrust rocket engine.
According to the reguirements of axial thrust measurement and thrust eccentricity measurement of engine test bench,the structure of the test benchis designed and analyzed. The design enhances the dynamic characteristics of the bench to reduce the influence of the bench structure on the measurement accuracy. It increases the axial stiffness and reduces the lateral stiffness of the movableframe to raise the natural frequency of the frame and eliminates the vibration effect of the movable frame when starting the engine. The test bench has met the test requiremts of a small thrust rocket engine.
引文
[1]董洪强.小推力液体火箭发动机试车台设计研究[D].北京:国防科学技术大学,2006.
[2]刘海峰,邢耀国,等.固体火箭发动机高精度试车台设计研究[J].海军航空工程学院学报,2002,17(2):207-209.
[3]耿文忠.新型液体火箭发动机试车台起动试验系统方案设计[J].火箭推进,2008,34(3):49-53.
[4]吴惠明,焦献瑞.发动机试车台推力测量系统中心加载现场校准技术研究[J].计测技术,2009,29(1):28-30.
[5]王辰辰,李新良,李程,等.航空矢量发动机试车台推力校准技术综述[J].计测技术,2015(4):10-14.
[6]刘子虚,吴国昌.轻型固体火箭发动机试车台校准技术研究[J].计测技术,2017,37(s1):141-145.
[2]刘海峰,邢耀国,等.固体火箭发动机高精度试车台设计研究[J].海军航空工程学院学报,2002,17(2):207-209.
[3]耿文忠.新型液体火箭发动机试车台起动试验系统方案设计[J].火箭推进,2008,34(3):49-53.
[4]吴惠明,焦献瑞.发动机试车台推力测量系统中心加载现场校准技术研究[J].计测技术,2009,29(1):28-30.
[5]王辰辰,李新良,李程,等.航空矢量发动机试车台推力校准技术综述[J].计测技术,2015(4):10-14.
[6]刘子虚,吴国昌.轻型固体火箭发动机试车台校准技术研究[J].计测技术,2017,37(s1):141-145.