基于高速转台下的发动机压力测量系统分析 Analysis of Engine Pressure Measurement System Based on High Speed Turntable
2021-11-30曹慧CAOHui
曹慧 CAO Hui

摘要:本文介绍基于高速转台的发动机压力测量系统,该系统能够精确测量发动机燃烧室内部的压强,并自带存储测试相关装备。传统的发动机压力测量采用的是间接测量方法,通过对推力和时间的相对数据而倒推出燃烧室的压力数据,此种方式会因为摩擦力对推力的损耗而产生较大误差。而改进的基于高速转台的发动机压力测量系统则因为通过采用对燃烧室直接测量的方式而减少误差,实现了精确测量。
Abstract: This paper introduces the engine pressure measurement system based on high-speed turntable. The system can accurately measure the pressure in the engine combustion chamber, and has its own storage and testing equipment. The traditional engine pressure measurement adopts the indirect measurement method, which reverses the pressure data of the combustion chamber through the relative data of thrust and time. This method will produce large errors due to the loss of thrust by friction. The improved engine pressure measurement system based on high-speed turntable reduces the error and realizes accurate measurement by directly measuring the combustion chamber.
關键词:高速转台;发动机压力测量;压力测量系统;系统测量条件;系统软件设计
Key words: high speed turntable;engine pressure measurement;pressure measuring system;system measurement conditions;system software design
中图分类号:U464 文献标识码:A 文章编号:1674-957X(2021)22-0045-02
0 引言
发动机的应用常常被限制在高速转台的背景下,导致其在此应用状态的性能等产生和其一般应用状态下的显著区别。为此,相关研究人员对发动机在高速转台下的压力水平进行测量对发动机的使用有重要参考价值。本文内容包括该发动机压力测量系统的测量条件、软硬件部分以及测量结构部分等。
1 基于高速转台下的发动机压力测量系统测量条件
1.1 基于高速转台下的发动机压力测量系统具体过程
为了测试出明确的发动机内部动能,该压力测量系统使用已经被长期应用的发动机压力测量实验平台,该实验平台拥有高速转台主轴。该高速度的转台主轴的转速可以达到11000r/min,该高速转轴的内部含有液压油,发动机运行的压力可以被充分疏导出来并且避免因为高温所导致的实验风险的发生。……
杂志排行
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