火箭发动机点火控制系统设计
时间:2020-04-24 20:51 来源:毕业论文 作者:毕业论文 点击:次
| 摘要为了保证火箭发射的可靠性与安全性，以及保证发射场及人员的安全，必须设计出一种可靠性和安全性都得到保障的点火时序电路及紧急关机电路系统。这种点火系统具有倒计时显示、短路保护、电阻测量、时序信号输出以及点火电流输出等多种功能。本文通过从各种继电器、锁存器的相互配合，运用多个开关对点火电路的控制，并且在总电路上设置一个急停开关，有效的保证了电路的可靠性与安全性，减少了由于火箭发射由于某些原因导致的误点。并且该系统还可以切换至电阻测量状态，以测量点火头的电阻是否接近理想状态下的电阻，有效的减少了点火中的事故发生。48052 毕业论文关键词 火箭发射点火系统 急停关机电路 可靠性 安全性 Title The design of rocket engine ignition control system Abstract In order to guarantee the reliability and security of the rocket launching,and ensure the safety of launch site and personnel we must design an ignition timingcircuit and emergency shutdown circuit system,the reliability and safety of whichare guaranteed .This system can realize many fuction ,such as the cutdown display,short circuit protection , resistance measurement,timing signal output ,ignitioncurrent output,and so on.In this paper, from a variety of relays, latch to cooperate with each other,we use more than one switch on the ignition circuit control, and the total circuitset an urgent stop switch, effectively guarantee the reliability and security ofthe circuit, reduced due to the rocket launch was delayed due to some reason.Andthe syestem can also turn to the resistance measurement ,to measure the rotorresistance is close to the ideal state resistance ,effectively reduce accidentin the ignition .Keywords Rocket ignition system; Scram shutdown circuit; reliability;security 目次 1引言（或绪论）1 1.1研究背景及意义1 1引言（或绪论）1 1.1研究背景及意义1 1.3本文研究方向.2 2点火器组成功能及设计要求3 3测电阻电路5 3.1电路组成及功能5 3.2电路供电系统.5 3.3阻值显示电路.6 3.4阻值测量系统.7 3.4.1电路功能总体介绍..7 3.4.2主要器件及原理7 3.4.3电路调试和误差检验.8 4继电器控制电路.10 4.1电路组成及功能.10 4.2时间继电器控制电路..11 4.2.1电路原理及功能.11 4.2.2组成器件及相互关系..11 4.2.3电路调试..14 4.3延时复位电路..15 4.3.1整体功能及作用.15 4.3.2组成器件及原理.15 4.3.3电路调试..16 4.4触发信号输出电路17 4.5电路供电系统及其他电路..18 5外围电路控制..19 5.1安全保护电路系统19 5.1.1设计背景及意义.19 5.1.2短路保护电路..19 5.1.3急停开关..19 5.2箱体布局..20 5.3系统供电装置..20 6性能检测与调试.22 结论24 致谢25 参考文献..26 附录A电器元件清单.27
附录B开关及继电器清单..28 |