摘要
某试验台承担了多项运载火箭动力系统的试验任务,试验前需要对箭上气瓶进行充气。由于箭上所带气瓶个数较多,充气压力较高,充气所需时间较长,操作人员工作量较大。同时,满足总体单位充气速率要求的难度较大。为了解决以上难题,借助AMESim软件对地面工艺系统进行仿真,获得箭上气瓶充气流量及地面气源压力的变化情况。根据仿真结果进行优化设计,通过在试验系统上增设孔板和增加数显二次仪表等针对性措施,实现了箭上气瓶充气速率在线调节的功能。对气瓶充气流程进行优化,充气气源采取高、低压切换逐瓶供应的方式。经动力系统试验考核,验证了系统优化设计的有效性。
The launch vehicle power system tests are conducted at the new generation launch vehicle power system test stand. The gas cylinders on the rocket should be inflated before the test. The gas inflation usually lasts a long time because of so many gas cylinders on the rocket and the high gas pressure. And the task of operators is very heavy before tests beginning. Additionally, the air inflation speed is controlled difficultly. For solving the problems above, the process system on the ground was simulated by using the AMESim software, and the air inflation flow and the change of the gas pressure was obtained. Based on the simulation result, the design can be optimized. Some pertinent measures were adopted to optimize the gas distribution system and achieve the online regulation of air inflation speed. At the same time, the air inflation process of gas cylinders was optimized. The validity and reliability of system optimization was proved by launch vehicle power system tests.
出处
《火箭推进》
CAS
2016年第2期73-78,共6页
Journal of Rocket Propulsion
关键词
动力系统试验
充气
系统优化
power system test
air inflation
system optimization
作者简介
宋晶晶（1982-），女，硕士，研究领域为液体火箭发动机地面试验技术
