【作者】 严海； 方勃； 杨天智； 黄文虎；

【Author】 YAN Hai,FANG Bo ,YANG Tian-zhi, HUANG Wen-hu (School of Astronautics, Harbin institute of technology, Harbin, 150001)

【机构】 哈尔滨工业大学航天学院；

【摘要】 在液体火箭推进剂输运管路上安装蓄压器是解决火箭纵向耦合振动(POGO)的有效方法。本文建立了一个贮气型蓄压器的动力学模型,研究了蓄压器对推进系统固有频率的影响以及蓄压器消减推进系统压力脉动的作用,并给出了在已知降频要求和消减压力脉动要求的情况下,确定蓄压器参数的方法。为蓄压器的设计、研制、使用提供了参考。更多还原

【Abstract】 It is useful to set an accumulator on the propulsion feed line of the liquid rocket to control the longitudinal coupling vibration (POGO). In this paper, after establishing the dynamical model of a gas reserved accumulator, the influence of the accumulator to the frequencies of the propulsion system and the effect of the accumulator to the pressure pulsating of the propulsion system are investigated. The method to determine the parameter of the accumulator is obtained. A reference to design, development and use the accumulator is provided.更多还原