本文選題：往復(fù)密封　切入點(diǎn)：行程　出處：《浙江大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：高壓往復(fù)密封是航空作動器的重要組成部分,其性能和可靠性直接影響飛機(jī)的整體性能,對高壓往復(fù)密封進(jìn)行性能和壽命驗(yàn)證具有重大意義,因此非常有必要開發(fā)一套相關(guān)的試驗(yàn)系統(tǒng)。本課題基于“長壽命密封驗(yàn)證系統(tǒng)”項(xiàng)目,針對未來國內(nèi)飛機(jī)將采用的28MPa壓力級別液壓系統(tǒng),展開高壓(28MPa)往復(fù)密封試驗(yàn)系統(tǒng)的開發(fā)及研究,主要內(nèi)容如下：第一章：緒論。主要介紹了高壓往復(fù)密封試驗(yàn)系統(tǒng)的研究背景及國內(nèi)外研究現(xiàn)狀,明確了課題的研究意義、目標(biāo)和內(nèi)容,闡述了相關(guān)的關(guān)鍵技術(shù)。第二章：高壓(28MPa)往復(fù)密封試驗(yàn)系統(tǒng)總體設(shè)計(jì)。分析了試驗(yàn)系統(tǒng)的總體性能需求,提出了試驗(yàn)系統(tǒng)組成及原理,并對試驗(yàn)系統(tǒng)中的液壓系統(tǒng)、加載系統(tǒng)、環(huán)境模擬系統(tǒng)進(jìn)行總體方案設(shè)計(jì),重點(diǎn)分析了加載系統(tǒng)特性,實(shí)現(xiàn)了試驗(yàn)系統(tǒng)的總成。第三章：行程控制系統(tǒng)特性分析。針對非對稱缸行程控制要求,提出了行程控制的基本原理；建立了行程控制系統(tǒng)數(shù)學(xué)模型,設(shè)計(jì)了分段式PID控制算法；通過ADAMS/AMESim聯(lián)合仿真,開展了多缸運(yùn)動同步性研究；針對試驗(yàn)中的不同步問題提出了減小誤差的方法。第四章：脈沖控制系統(tǒng)特性分析。依據(jù)脈沖試驗(yàn)標(biāo)準(zhǔn),設(shè)計(jì)了脈沖波形的實(shí)現(xiàn)原理；建立了仿真模型,分析了關(guān)鍵參數(shù)(壓力、流量)對脈沖波形的影響；試驗(yàn)并與仿真對比,驗(yàn)證了脈沖方案的合理性和脈沖系統(tǒng)建模方法的正確性。第五章：溫度控制系統(tǒng)特性分析。針對作動器內(nèi)油液和作動器外空氣的溫度控制要求,設(shè)計(jì)了溫度控制系統(tǒng)；分別建立了溫控系統(tǒng)的AMESim和ANSYS模型,分析了液壓系統(tǒng)(包括作動器、長管路)和溫控箱內(nèi)的溫度場變化情況；研究結(jié)果驗(yàn)證了所設(shè)計(jì)的溫控系統(tǒng)滿足要求。第六章：總結(jié)和展望�？偨Y(jié)了高壓往復(fù)密封試驗(yàn)系統(tǒng)的研究進(jìn)展及成果,指出了后續(xù)的研究重點(diǎn),對未來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.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：V216

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