本文關(guān)鍵詞：TLC450運(yùn)梁車液壓系統(tǒng)設(shè)計及行走液壓系統(tǒng)仿真分析　出處：《燕山大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 450噸運(yùn)梁車 液壓系統(tǒng) 靜液驅(qū)動速度控制 模糊PID AMESim仿真

【摘要】：隨著我國經(jīng)濟(jì)的持續(xù)快速發(fā)展，鐵路運(yùn)力不足的矛盾也越來越突出，建設(shè)鐵路客運(yùn)專線，實現(xiàn)鐵路客運(yùn)與貨運(yùn)分離已經(jīng)刻不容緩。受鐵路客運(yùn)專線施工工藝的限制，從預(yù)制梁場到架橋現(xiàn)場之間對混凝土箱梁的運(yùn)輸必須使用輪胎式特種車輛，運(yùn)梁車正是為了滿足這種需求而研制的。 本課題研究的目的主要是針對運(yùn)梁車在實際運(yùn)行中的速度控制不精確的問題進(jìn)行理論分析及仿真分析，進(jìn)而完成對運(yùn)梁車行走系統(tǒng)的優(yōu)化設(shè)計�；谝陨夏康模紫�，本課題結(jié)合運(yùn)梁車的使用工況以及施工特點(diǎn)，以整車的穩(wěn)定性與可靠性為目的，介紹了運(yùn)梁車的整體結(jié)構(gòu)布局；以運(yùn)梁車要實現(xiàn)的功能為出發(fā)點(diǎn)，，主要分析了行走系統(tǒng)動力學(xué)特性，計算了不同工況下行走系統(tǒng)的阻力和功率消耗，設(shè)計計算了行走液壓驅(qū)動系統(tǒng)、液壓轉(zhuǎn)向系統(tǒng)、液壓冷卻系統(tǒng)以及其它輔助液壓系統(tǒng)，并著重對行走液壓驅(qū)動系統(tǒng)關(guān)鍵元件的設(shè)計選型及工作原理進(jìn)行了論述。 其次，本課題著重對液壓行走驅(qū)動系統(tǒng)的速度控制模式進(jìn)行了研究，在理論分析的基礎(chǔ)上確定了液壓行走系統(tǒng)的調(diào)速方案；在對行走系統(tǒng)模型進(jìn)行理論分析的基礎(chǔ)上利用AMESim軟件建立了重型輪胎式運(yùn)梁車液壓行走系統(tǒng)的仿真模型，并對驅(qū)動行走液壓系統(tǒng)的調(diào)速方案進(jìn)行仿真驗證；按照轉(zhuǎn)速感應(yīng)控制方式建立相關(guān)的功率匹配仿真模型，仿真結(jié)果顯示該控制方式可以較好的完成運(yùn)梁車調(diào)速過程的功率匹配問題，有效的增加了運(yùn)梁車的節(jié)能效果。 最后，針對調(diào)速過程中的速度控制不精確問題，建立基于馬達(dá)轉(zhuǎn)速控制的閉環(huán)控制系統(tǒng)，使用MATLAB軟件設(shè)計了常規(guī)PID和模糊PID控制器，并利用AMESim與MATLAB軟件對液壓行走系統(tǒng)進(jìn)行聯(lián)合仿真，仿真結(jié)果表明常規(guī)PID控制雖然可以針對具體的系統(tǒng)參數(shù)完成馬達(dá)轉(zhuǎn)速的控制，但是在不同轉(zhuǎn)速控制目標(biāo)下的響應(yīng)卻不很理想，而模糊自整定PID控制可以完成不同控制目標(biāo)下的PID參數(shù)的在線整定，可以較好對不同的控制目標(biāo)對PID參數(shù)進(jìn)行在線匹配，仿真結(jié)果表明模糊自整定PID的控制效果優(yōu)于常規(guī)PID控制。
[Abstract]:With the sustained and rapid development of China's economy, the contradiction of insufficient railway capacity is becoming more and more prominent. It is urgent to realize the separation of railway passenger transport and freight transport. Due to the limitation of construction technology of railway passenger dedicated line, the special vehicle of tire type must be used in the transportation of concrete box girder from precast girder yard to bridge construction site. It is precisely to meet this kind of demand that the beam conveyer is developed. The purpose of this paper is to analyze and simulate the imprecise speed control of beam carrying vehicle in actual operation. Based on the above purpose, first of all, combined with the use conditions and construction characteristics of the vehicle, the purpose of this paper is to achieve the stability and reliability of the whole vehicle. This paper introduces the overall structure layout of beam conveyer. Based on the function of beam moving vehicle, the dynamic characteristics of walking system are analyzed, the resistance and power consumption of walking system under different working conditions are calculated, and the hydraulic driving system of walking is designed and calculated. Hydraulic steering system, hydraulic cooling system and other auxiliary hydraulic systems are discussed. The design and selection of key components and working principle of walking hydraulic drive system are discussed. Secondly, the speed control mode of the hydraulic driving system is studied, and the speed control scheme of the hydraulic driving system is determined on the basis of theoretical analysis. Based on the theoretical analysis of the walking system model, the simulation model of the hydraulic walking system of the heavy-duty tire beam carrier is established by using AMESim software. The speed regulation scheme of driving hydraulic system is verified by simulation. According to the speed induction control mode, the power matching simulation model is established. The simulation results show that the control method can achieve the power matching problem of the speed control process. It effectively increases the energy saving effect of the beam transport vehicle. Finally, a closed-loop control system based on motor speed control is established for the inaccuracy of speed control in the course of speed regulation. Conventional PID and fuzzy PID controller are designed by using MATLAB software. AMESim and MATLAB software are used to simulate the hydraulic walking system. The simulation results show that the conventional PID control can complete the motor speed control according to the specific system parameters. However, the response under different rotational speed control targets is not ideal, and fuzzy self-tuning PID control can achieve on-line tuning of PID parameters under different control objectives. The PID parameters can be matched on line with different control targets. The simulation results show that the control effect of fuzzy self-tuning PID is better than that of conventional PID control.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH137.7;U215.6

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