高压（28MPa）往复密封试验系统研究

发布时间：2018-03-17 23:22

本文选题：往复密封　切入点：行程　出处：《浙江大学》2016年硕士论文　论文类型：学位论文

【摘要】：高压往复密封是航空作动器的重要组成部分,其性能和可靠性直接影响飞机的整体性能,对高压往复密封进行性能和寿命验证具有重大意义,因此非常有必要开发一套相关的试验系统。本课题基于“长寿命密封验证系统”项目,针对未来国内飞机将采用的28MPa压力级别液压系统,展开高压(28MPa)往复密封试验系统的开发及研究,主要内容如下：第一章：绪论。主要介绍了高压往复密封试验系统的研究背景及国内外研究现状,明确了课题的研究意义、目标和内容,阐述了相关的关键技术。第二章：高压(28MPa)往复密封试验系统总体设计。分析了试验系统的总体性能需求,提出了试验系统组成及原理,并对试验系统中的液压系统、加载系统、环境模拟系统进行总体方案设计,重点分析了加载系统特性,实现了试验系统的总成。第三章：行程控制系统特性分析。针对非对称缸行程控制要求,提出了行程控制的基本原理；建立了行程控制系统数学模型,设计了分段式PID控制算法；通过ADAMS/AMESim联合仿真,开展了多缸运动同步性研究；针对试验中的不同步问题提出了减小误差的方法。第四章：脉冲控制系统特性分析。依据脉冲试验标准,设计了脉冲波形的实现原理；建立了仿真模型,分析了关键参数(压力、流量)对脉冲波形的影响；试验并与仿真对比,验证了脉冲方案的合理性和脉冲系统建模方法的正确性。第五章：温度控制系统特性分析。针对作动器内油液和作动器外空气的温度控制要求,设计了温度控制系统；分别建立了温控系统的AMESim和ANSYS模型,分析了液压系统(包括作动器、长管路)和温控箱内的温度场变化情况；研究结果验证了所设计的温控系统满足要求。第六章：总结和展望。总结了高压往复密封试验系统的研究进展及成果,指出了后续的研究重点,对未来的研究工作提出展望。
[Abstract]:High pressure reciprocating seal is an important part of aeronautical actuator. Its performance and reliability directly affect the overall performance of aircraft. It is of great significance to verify the performance and life of high pressure reciprocating seal. Therefore, it is very necessary to develop a set of related test system. Based on the "long life seal verification system" project, this paper aims at the 28MPa pressure level hydraulic system to be used in the future domestic aircraft. The main contents are as follows: chapter 1: introduction. This paper mainly introduces the research background of high pressure reciprocating seal test system and the current research situation at home and abroad, and clarifies the research significance of the subject. In chapter 2, the overall design of the reciprocating seal test system is introduced. The overall performance requirements of the test system are analyzed, and the composition and principle of the test system are presented. The hydraulic system, loading system and environment simulation system in the test system are designed, and the characteristics of the loading system are analyzed. Chapter 3: characteristic analysis of stroke control system. According to the requirements of asymmetric cylinder stroke control, the basic principle of stroke control is put forward, and the mathematical model of stroke control system is established. A segmented PID control algorithm is designed, and the synchronization of multi-cylinder motion is studied by ADAMS/AMESim simulation. A method to reduce the error is put forward in allusion to the problem of non-synchronization in the experiment. Chapter 4th: analysis of the characteristics of pulse control system. According to the standard of pulse test, the realization principle of pulse waveform is designed, and the simulation model is established. The influence of key parameters (pressure, flow rate) on pulse waveform is analyzed, and the experimental results are compared with those of simulation. The rationality of the pulse scheme and the correctness of the modeling method of the pulse system are verified. Chapter 5th: analysis of the characteristics of the temperature control system. According to the temperature control requirements of the oil in the actuator and the air outside the actuator, the temperature control system is designed. The AMESim and ANSYS models of the temperature control system are established, and the temperature field changes in the hydraulic system (including actuators, long pipes) and the temperature control box are analyzed. The results show that the designed temperature control system meets the requirements. Chapter 6th: summary and prospect. The research progress and results of the high pressure reciprocating seal test system are summarized.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V216

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