【摘要】：交通錐自動收放車的出現(xiàn)改變了高速公路人工布放回收交通錐的局面,對提高養(yǎng)護(hù)作業(yè)的工作效率、安全性具有重要意義。工作裝置與動力系統(tǒng)的匹配優(yōu)化方法是交通錐自動收放車重要研究內(nèi)容之一。為此,本文針對執(zhí)行元件在變負(fù)載、多時序中高效穩(wěn)定工作的設(shè)計(jì)要求,以提高交通錐自動收放車工作效率,減少液壓系統(tǒng)發(fā)熱,降低成本為目標(biāo),確定多源動力系統(tǒng)方案,對工作裝置執(zhí)行元件及行駛動力系統(tǒng)關(guān)鍵部件參數(shù)匹配優(yōu)化方法進(jìn)行研究�；诖怂悸�,本論文開展和完成了如下研究工作:首先,針對交通錐自動收放車作業(yè)過程中行駛速度低、工作裝置負(fù)載變化大、執(zhí)行元件存在并行動作等特點(diǎn),根據(jù)其工作原理,對工作裝置不同驅(qū)動與調(diào)速方案進(jìn)行了對比分析;結(jié)合實(shí)際作業(yè)環(huán)境與工況,通過弱混合動力技術(shù),確定多源動力系統(tǒng)構(gòu)型;其次,根據(jù)拉格朗日方程及動力學(xué)分析方法,對工作裝置執(zhí)行機(jī)構(gòu)的負(fù)載進(jìn)行求解及參數(shù)匹配;基于工作裝置、行駛系動力需求,以及混合動力系統(tǒng)匹配方法,對交通錐動力系統(tǒng)關(guān)鍵部件總成進(jìn)行選型及匹配;再次,為驗(yàn)證多源動力系統(tǒng)參數(shù)匹配的合理性,根據(jù)多領(lǐng)域統(tǒng)一建模方法與聯(lián)合仿真技術(shù),建立了多源動力系統(tǒng)仿真模型,包括行駛動力系統(tǒng)、液壓驅(qū)動系統(tǒng)、工作裝置控制系統(tǒng)、行駛動力系統(tǒng)控制系統(tǒng)等;最后,對轉(zhuǎn)場與作業(yè)工況中的交通錐自動收放車工作性能進(jìn)行了仿真分析,仿真結(jié)果表明,行駛動力系統(tǒng)滿足高速公路轉(zhuǎn)場工況的動力性需求,且節(jié)能調(diào)速回路具有較好的調(diào)速性能;以減小動作循環(huán)時間,提高能量利用率為目標(biāo),建立執(zhí)行元件參數(shù)優(yōu)化模型,對優(yōu)化前后參數(shù)進(jìn)行了仿真分析與對比驗(yàn)證。研究結(jié)果表明,由弱混合動力系統(tǒng)、節(jié)能調(diào)速回路組成的多源動力系統(tǒng),以及對工作裝置執(zhí)行元件的速度參數(shù)優(yōu)化可有效解決多種作業(yè)工況下工作裝置動力不足、液壓系統(tǒng)發(fā)熱嚴(yán)重等問題,為交通錐自動收放車動力系統(tǒng)匹配優(yōu)化奠定了理論基礎(chǔ)。
[Abstract]:The appearance of automatic traffic cones has changed the situation of freeway manual placement and recovery of traffic cones. It is of great significance to improve the working efficiency and safety of maintenance operations. The matching optimization method between the working device and the power system is one of the important research contents of the traffic cone automatic retracement and release vehicle. In order to improve the working efficiency of traffic cones, reduce the heating of hydraulic system and reduce the cost, the multi-source power system scheme is determined according to the design requirements of high efficiency and stable operation of the actuators in variable load and multiple time series, in order to improve the working efficiency of traffic cones, reduce the heating of hydraulic system and reduce the cost. The parameter matching optimization method for the key components of the actuator and driving power system is studied. Based on this idea, this paper has carried out and completed the following research work: firstly, aiming at the characteristics of low driving speed, heavy load change of the working device and parallel action of the executive components in the process of the traffic cones automatic retracement and release, etc. According to its working principle, the different drive and speed regulation schemes of the working device are compared and analyzed. Combined with actual working environment and working conditions, the configuration of multi-source power system is determined by weak hybrid power technology. Secondly, according to Lagrange equation and dynamic analysis method, the load of the actuator of the working device is solved and the parameters are matched. Based on the working device, driving system dynamic requirements and hybrid power system matching method, the key components of the traffic cone power system are selected and matched. Thirdly, in order to verify the rationality of multi-source power system parameter matching, according to multi-domain unified modeling method and joint simulation technology, the simulation model of multi-source power system is established, including driving power system, hydraulic drive system. Working device control system, driving power system control system; Finally, the performance of the traffic cones automatic retracement and release vehicle is simulated and analyzed. The simulation results show that the driving power system can meet the dynamic demand of the expressway turning field. And the energy-saving speed regulation circuit has better speed regulation performance; In order to reduce the action cycle time and improve the energy utilization ratio, the optimization model of the parameters of the actuator is established, and the parameters before and after the optimization are simulated and compared. The results show that the multi-source power system, which is composed of a weak hybrid power system, a energy-saving speed regulating loop, and the optimization of the speed parameters of the actuator, can effectively solve the power shortage of the working device under a variety of operating conditions. The heating of hydraulic system is serious, which lays a theoretical foundation for the optimization of power system matching.
【學(xué)位授予單位】：山東科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U418.3

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