發(fā)布時間：2018-02-08 22:08

  本文關(guān)鍵詞： 重載液壓牽引絞車 鋼纜 軸套力 宏建模 閉式液壓系統(tǒng) RecurDyn-AMESim聯(lián)合仿真　出處：《浙江大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：牽引絞車是工業(yè)生產(chǎn)中一種用途廣泛的機械設(shè)備,在建筑、礦山工程、船舶運輸、海洋石油等諸多領(lǐng)域都發(fā)揮重要作用。有些牽引絞車需工作在重載且變載的惡劣負(fù)載條件下,如海上拖曳系統(tǒng),這種工況不僅對絞車工作的可靠性、控制性能有較高要求,對鋼纜自身的強度及疲勞壽命也有極大考驗�；诖�,國外學(xué)者對重載且多變載荷下的牽引絞車從機械、傳動、控制、鋼纜壽命等方面都進(jìn)行了較為細(xì)致且深入的研究,而國內(nèi)類似設(shè)備主要依賴進(jìn)口,因此對重載牽引絞車的研究還不深入,諸如鋼纜建模分析及其機械液壓系統(tǒng)設(shè)計方面的成果也比較有限。本文在前人工作的基礎(chǔ)上,結(jié)合動力學(xué)仿真軟件,對重載多變載荷條件下的牽引絞車從機械、傳動、控制方面給出了較為系統(tǒng)的分析設(shè)計過程。首先針對對負(fù)載特性影響較大的鋼纜,利用有限元分析思想和軸套力建模方法建立了其仿真模型,并取經(jīng)典繩索問題對上述鋼纜模型進(jìn)行原理校對,驗證建模方法的科學(xué)性,從而揭示了負(fù)載、鋼纜與絞車之間的非剛性力耦合過程;然后文章著眼于重載牽引絞車的機械液壓環(huán)節(jié),根據(jù)上述負(fù)載特性給出機械液壓驅(qū)動及控制系統(tǒng)原理設(shè)計,并建立對應(yīng)的機械-液壓系統(tǒng)仿真模型,進(jìn)而結(jié)合鋼纜多體模型建立整機的機械-液壓-負(fù)載模型;最后結(jié)合試驗數(shù)據(jù)驗證仿真模型的準(zhǔn)確性,由此印證了本文工作在重載牽引絞車系統(tǒng)設(shè)計及性能分析方面的價值。本文主要由6章組成:第1章緒論介紹了牽引絞車的機械及液壓系統(tǒng)、鋼纜建模的相關(guān)背景,總結(jié)了國內(nèi)外當(dāng)前在重載牽引絞車、液壓驅(qū)動系統(tǒng)及鋼纜建模方面的研究成果,綜合現(xiàn)有研究的不足,介紹了本課題的研究意義。第2章針對重載牽引絞車中鋼纜因摩擦力影響而受力復(fù)雜的情況,提出使用軸套力為鋼纜進(jìn)行建模的方法,在RecurDyn中使用ProcessNet實現(xiàn)鋼纜參數(shù)化宏建模的方法,并給出具體實現(xiàn)過程。第3章通過將使用軸套力所建微元化鋼纜模型仿真結(jié)果與連續(xù)體理論的鋼纜模型進(jìn)行比較,驗證了模型的科學(xué)性。通過懸鏈線模型驗證鋼纜模型的姿態(tài);通過繞柱摩擦模型來驗證鋼纜模型的沿纜摩擦力等等。仿真結(jié)果與理論解析值基本吻合,對誤差原因也做了相應(yīng)的分析。第4章在對牽引絞車典型工況和負(fù)載特性分析的基礎(chǔ)上,采用了閉式液壓回路,分別設(shè)計了重載牽引絞車和存儲絞車的液壓驅(qū)動系統(tǒng),確立了重載牽引絞車進(jìn)行轉(zhuǎn)速控制和存儲絞車進(jìn)行恒張力控制的工作模式。根據(jù)絞車設(shè)計要求,對主要液壓元件進(jìn)行選型,并校核選型結(jié)果。第5章搭建了重載牽引絞車和存儲絞車的液壓仿真模型,結(jié)合上文建立的牽引絞車及鋼纜機械模型,進(jìn)行聯(lián)合仿真,仿真數(shù)據(jù)與試驗數(shù)據(jù)基本一致,從而驗證了本文所建立模型的準(zhǔn)確性,由此模型可揭示設(shè)備的內(nèi)在工作機理,并為類似裝備的設(shè)計提供理論依據(jù)。第6章在對全文工作總結(jié)的基礎(chǔ)上,提出整體工作中的欠缺和不足,以及需要改進(jìn)的方面和未來的優(yōu)化方向。
[Abstract]:The traction winch is a widely used mechanical equipment, industrial production in the construction, mining engineering, shipping, offshore oil fields will play an important role. Some bad load conditions for traction winch in heavy load and variable load, such as towing system, the reliability of the winch condition not only work, control have higher performance requirements, strength and fatigue life of the cable itself has a great test. Based on this, the foreign scholars on the traction winch overloading and variable loads from machinery, transmission, control, life and other aspects of the cable is studied and deeply, and domestic similar equipment mainly rely on imports, so the research of heavy haul traction winch is not thorough, such as cable modeling analysis design and mechanical hydraulic system has limited results. On the basis of previous work, binding kinetics The simulation software of load changing traction winch loads from mechanical transmission, control, gives the analysis and design process systematically. Firstly, in view of the great influence on the load characteristics of the cable, established the simulation model using finite element analysis thought and bushing modeling method, and the problem of proof principle of classical rope the cable model, validate the modeling method, which reveals the load, non rigid mechanical coupling process between the cable and winch; then this paper focuses on heavy haul traction winch hydraulic mechanical link, according to the load characteristics are mechanical hydraulic drive and control system design principle, and establish corresponding mechanical - hydraulic system simulation model. And then combined with the multi-body model of the cable mechanical hydraulic load model; finally, verifying the accuracy of the simulation model test data, which confirms The work in the heavy load traction value design and performance analysis of winch system. This paper consists of 6 chapters: the first chapter introduces the mechanical and hydraulic system of traction winch, cable modeling background, summarizes the current in heavy haul traction winch, hydraulic drive system and the research results of cable modeling. Comprehensive the lack of existing research, introduces the research significance of this topic. The second chapter in the winch cable because of friction effect and complex force of heavy haul condition, this paper puts forward a method for modeling the cable bushing, using the ProcessNet method in the RecurDyn implementation of the macro modeling of modal parameters, and gives the concrete realization of the process third. Chapter through the comparison of cable model will be used to build the micro cable bushing of the simulation results with the continuum theory, verified the correctness of the model. Through the Catenary line Model validation model of cable attitude; through the winding column friction model to verify the model of the cable along cable friction and so on. The simulation results and theoretical analysis results, the cause of the error is analyzed. The fourth chapter in the typical working conditions of traction winch and load based on characteristic analysis, using a closed hydraulic circuit the design of the hydraulic load respectively, traction winch and storage winch drive system, established the heavy traction winch speed control and storage winch of constant tension control mode. According to the winch design requirements, selection of main hydraulic components, and check the selection results. The fifth chapter builds the hydraulic simulation model of heavy haul traction winch and storage winch, winch and cable traction combined with the mechanical model established above, joint simulation, the simulation data and the experimental data are basically consistent, which proves this The accuracy of the model, this model can reveal the internal mechanism of the equipment, and provide a theoretical basis for the design of similar equipment. In the sixth chapter, on the basis of the work summary, put forward the overall lack of work and shortcomings, and the need for improvement and Optimization in the future.

【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】：2017
【分類號】：TH21

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