本文選題：伸縮缸 + 電液控制系統(tǒng)��； 參考：《浙江大學(xué)》2012年碩士論文

【摘要】：甲板升降平臺(tái)是一種用于滾裝船甲板頂升作業(yè)的移動(dòng)設(shè)備。由于甲板頂升機(jī)需要在甲板與甲板之間進(jìn)行爬坡行走,以及甲板頂升行程較長,導(dǎo)致采用加有定位導(dǎo)軌的單級(jí)缸同步控制方式變?yōu)椴豢赡?所以必須采取執(zhí)行元件為伸縮缸的同步控制方式。但是,由于伸縮缸存在作用面積突變、弱剛度特性以及系統(tǒng)結(jié)構(gòu)耦合等問題,限制了基于伸縮缸的電液同步控制系統(tǒng)的應(yīng)用與發(fā)展,因此,深入分析伸縮缸電液控制系統(tǒng)的內(nèi)部控制特性,改善同步控制系統(tǒng)的性能,具有非常重要的意義。 本課題從組成電液控制系統(tǒng)的各個(gè)控制元件出發(fā),研究其對(duì)伸縮缸位移的影響,包括閥控缸模型、分流閥模型以及伸縮缸模型,在此基礎(chǔ)上,利用仿真軟件對(duì)理論分析結(jié)果進(jìn)行初步對(duì)比,繼而制造出甲板升降機(jī)對(duì)其進(jìn)行現(xiàn)場實(shí)驗(yàn),驗(yàn)證了系統(tǒng)設(shè)計(jì)的合理性和可靠性,為類似這種伸縮缸同步系統(tǒng)的設(shè)計(jì)提供了參考。 第一章介紹了伸縮缸同步控制系統(tǒng)的研究現(xiàn)狀,對(duì)本課題的研究背景、意義以及主要研究內(nèi)容作了闡述。 第二章提出了甲板升降平臺(tái)的工作要求和目標(biāo)性能,據(jù)此設(shè)計(jì)了升降平臺(tái)的各個(gè)系統(tǒng),并介紹和分析了升降平臺(tái)的各個(gè)組成系統(tǒng)及其工作原理。 第三章建立了甲板升降平臺(tái)液壓控制系統(tǒng)的數(shù)學(xué)模型,包括閥控缸模型,分流閥模型和伸縮缸模型,并據(jù)此分析了各個(gè)液壓元件對(duì)伸縮缸位移的影響。 第四章針對(duì)單缸模型、雙缸模型以及四缸模型,利用AMESim軟件和ADAMS軟件進(jìn)行仿真分析,將得出的仿真結(jié)果與理論分析結(jié)果進(jìn)行比較。 第五章針對(duì)不同負(fù)載下的甲板平臺(tái)升降控制情況和不同的控制方式進(jìn)行了比較實(shí)驗(yàn),介紹了爬行現(xiàn)象及其危害,并提出了相應(yīng)的解決措施。 第六章總結(jié)了本課題所做的一些工作及其不足,對(duì)伸縮缸平臺(tái)升降電液控制系統(tǒng)未來需要進(jìn)行的研究進(jìn)行了展望。
[Abstract]:Deck lifting platform is a kind of mobile equipment used for ro-ro ship deck lifting. Due to the need for the deck hoist to climb the slope between the decks and the longer lift stroke of the deck, it is not possible to adopt the single-stage cylinder synchronous control mode with positioning guide rail. So we must adopt the synchronous control mode of the telescopic cylinder. However, the application and development of electro-hydraulic synchronous control system based on telescopic cylinder are limited by the problems of sudden change of action area, weak stiffness and coupling of system structure. It is of great significance to analyze the internal control characteristics of the electro-hydraulic control system of the telescopic cylinder and to improve the performance of the synchronous control system. In this paper, the effect of each control element of electro-hydraulic control system on displacement of telescopic cylinder is studied, including valve-controlled cylinder model, shunt valve model and telescopic cylinder model. The simulation software is used to make a preliminary comparison of the theoretical analysis results, and then a deck lift is manufactured to carry out field experiments to verify the rationality and reliability of the system design, which provides a reference for the design of the synchronous system similar to this kind of telescopic cylinder. The first chapter introduces the research status of synchronous control system of telescopic cylinder, and describes the research background, significance and main research content of this subject. In the second chapter, the working requirements and the target performance of the deck platform are put forward. Based on this, each system of the platform is designed, and the composing system and the working principle of the platform are introduced and analyzed. In the third chapter, the mathematical models of hydraulic control system of deck lifting platform are established, including valve control cylinder model, shunt valve model and telescopic cylinder model, and the influence of each hydraulic element on the displacement of telescopic cylinder is analyzed. In chapter 4, the simulation results of single cylinder model, two-cylinder model and four-cylinder model are analyzed by AMESim software and ADAMS software, and the simulation results are compared with the theoretical analysis results. In the fifth chapter, the control situation of deck platform under different loads and different control methods are compared, the crawling phenomenon and its harm are introduced, and the corresponding solutions are put forward. In the sixth chapter, some works and their shortcomings are summarized, and the future research on the electro-hydraulic control system of telescopic cylinder platform is prospected.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH137

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