發(fā)布時(shí)間：2019-04-23 11:06

【摘要】：PT25型高空作業(yè)平臺(tái)的支腿在工作過(guò)程支撐著整機(jī)，同時(shí)，在長(zhǎng)距離運(yùn)輸時(shí)承擔(dān)著自行上下車(chē)運(yùn)輸?shù)娜蝿?wù)，其受力和運(yùn)動(dòng)狀態(tài)將影響到整機(jī)工作穩(wěn)定性和上下車(chē)安全性；折臂機(jī)構(gòu)承載著吊籃和工作人員，其變幅機(jī)構(gòu)鉸點(diǎn)位置的布置直接影響折臂油缸受力，進(jìn)而影響整機(jī)的作業(yè)穩(wěn)定性和可靠性。為此，對(duì)支腿和折臂機(jī)構(gòu)進(jìn)行分析和優(yōu)化，對(duì)于改善高空作業(yè)平臺(tái)整機(jī)性能有著重要的意義。本文借助Pro/E、ANSYS和ADAMS等軟件，建立了該平臺(tái)的虛擬樣機(jī)模型，分析了不同工況下支腿受力和運(yùn)動(dòng)規(guī)律，并對(duì)折臂機(jī)構(gòu)的鉸點(diǎn)位置進(jìn)行了優(yōu)化，，主要研究?jī)?nèi)容如下： 1、應(yīng)用Pro/E軟件分別建立高空作業(yè)平臺(tái)自行上車(chē)過(guò)程和作業(yè)過(guò)程的三維模型，將建立好的模型導(dǎo)入ADAMS仿真環(huán)境，施加適當(dāng)?shù)募s束與驅(qū)動(dòng)后進(jìn)行仿真分析，獲得兩種工作過(guò)程下的支腿各構(gòu)件的運(yùn)動(dòng)學(xué)和動(dòng)力學(xué)參數(shù)及其變化規(guī)律。 2、借助ANSYS軟件生成支腿零部件的模態(tài)中性文件MNF(ModalNeutral File)，并將其導(dǎo)入ADAMS替代剛體構(gòu)件，建立考慮支腿彈性變形的剛?cè)狁詈夏Ｐ停M(jìn)而對(duì)整機(jī)自行上車(chē)過(guò)程和作業(yè)過(guò)程進(jìn)行剛?cè)狁詈蟿?dòng)力學(xué)仿真計(jì)算，獲得剛?cè)狁詈夏Ｐ偷牧�、�?yīng)力等隨時(shí)間的變化曲線(xiàn)，并將獲得的曲線(xiàn)與剛體模型曲線(xiàn)進(jìn)行對(duì)比分析。 3、在A(yíng)DAMS環(huán)境下建立折臂機(jī)構(gòu)可參數(shù)化的模型，通過(guò)軟件自身的優(yōu)化功能對(duì)該機(jī)構(gòu)的鉸點(diǎn)位置進(jìn)行優(yōu)化設(shè)計(jì)，獲得了更加合理的折臂機(jī)構(gòu)設(shè)計(jì)參數(shù)。 通過(guò)對(duì)高空作業(yè)平臺(tái)虛擬樣機(jī)剛體模型和剛?cè)狁詈夏Ｐ偷姆治隹芍褬?gòu)件自身的彈性、阻尼、慣性等因素考慮進(jìn)來(lái)的剛?cè)狁詈戏抡娓咏咏鼘?shí)際；分析折臂機(jī)構(gòu)鉸點(diǎn)位置的優(yōu)化結(jié)果發(fā)現(xiàn)，優(yōu)化后的該機(jī)構(gòu)在一定程度上改善了折臂油缸受力，提高了系統(tǒng)的起動(dòng)穩(wěn)定性和工作可靠性。
[Abstract]:The legs of PT25 high-altitude working platform support the whole machine in the working process, at the same time, it takes on the task of self-loading and getting-off transportation in the long distance transportation, and its force and motion state will affect the whole machine's working stability and the safety of getting on and off the train. The folding arm mechanism carries the hanging basket and the staff, and the layout of the hinge point position of the amplitude changing mechanism directly affects the force of the folding arm oil cylinder, and then affects the stability and reliability of the whole machine. Therefore, the analysis and optimization of leg and folding arm mechanism is of great significance to improve the performance of the platform. In this paper, the virtual prototype model of the platform is established with the help of software such as Pro/E,ANSYS and ADAMS, and the force and movement law of the leg under different working conditions are analyzed, and the hinge position of the folding arm mechanism is optimized. The main research contents are as follows: 1, The three-dimensional models of the self-loading process and the working process of the platform are established by using Pro/E software. The established model is imported into the ADAMS simulation environment, and the simulation analysis is carried out after applying the appropriate constraints and driving. The kinematic and dynamic parameters and their changing rules of each member of the leg under two kinds of working process are obtained. 2, the model neutral file MNF (ModalNeutral File), of leg component is generated by ANSYS software and imported into ADAMS instead of rigid body component, and the rigid-flexible coupling model considering elastic deformation of leg is established. Then, the dynamic simulation of rigid-flexible coupling process is carried out to get the curve of force and stress of rigid-flexible coupling model with time, and the curve is compared with the curve of rigid body model. 3. The parameterized model of the folding arm mechanism is established under the environment of ADAMS, and the hinge position of the mechanism is optimized by the optimization function of the software itself, and more reasonable design parameters of the folding arm mechanism are obtained. Through the analysis of rigid body model and rigid-flexible coupling model of virtual prototype of aerial platform, it is known that the rigid-flexible coupling simulation which takes the elasticity, damping, inertia and other factors into account is closer to the reality. By analyzing the optimization results of the hinge point position of the folding arm mechanism, it is found that the optimized mechanism improves the bearing force of the folding arm oil cylinder to a certain extent, and improves the starting stability and working reliability of the system.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH211.6

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 彭禮輝;李光;陽(yáng)貴明;劉領(lǐng)化;;基于A(yíng)DAMS和ANSYS的剛?cè)狁詈夏Ｐ头治鯷J];湖南工程學(xué)院學(xué)報(bào)(自然科學(xué)版);2011年03期

2 鄭曉亞;尤軍峰;張鐸;徐超;;ADAMS和ANSYS在機(jī)構(gòu)分析中的應(yīng)用(英文)[J];固體火箭技術(shù);2010年02期

3 杜中華,薛德慶,趙迎紅;Pro/E和ADAMS傳遞過(guò)程中若干問(wèn)題的討論[J];機(jī)械與電子;2003年02期

4 鄭夕健;張璇;費(fèi)燁;;基于A(yíng)DAMS的汽車(chē)起重機(jī)變幅機(jī)構(gòu)優(yōu)化設(shè)計(jì)[J];機(jī)械與電子;2008年07期

5 張華;祝志峰;董威;;我國(guó)裝修與高空作業(yè)機(jī)械行業(yè)的現(xiàn)狀及展望[J];建筑機(jī)械化;2006年05期

6 張華;李守林;;國(guó)內(nèi)外高空作業(yè)機(jī)械的現(xiàn)狀及發(fā)展趨勢(shì)(上)[J];建筑機(jī)械化;2011年03期

7 柏紅專(zhuān);羅亮平;;國(guó)內(nèi)高空作業(yè)機(jī)械行業(yè)現(xiàn)狀及發(fā)展方向[J];建筑機(jī)械;2006年15期

8 張華;;縱覽中國(guó)高空作業(yè)機(jī)械行業(yè)[J];建筑機(jī)械;2007年19期

9 方小軍;王進(jìn);馬軍星;夏德茂;;PT25型高空作業(yè)平臺(tái)工作裝置液壓缸作用力計(jì)算與分析[J];建筑機(jī)械;2011年05期

10 戴成;;基于A(yíng)dams的吊管機(jī)配重機(jī)構(gòu)動(dòng)力學(xué)仿真與結(jié)構(gòu)優(yōu)化[J];建筑機(jī)械;2011年05期

相關(guān)碩士學(xué)位論文 前7條

1 方小軍;PT25型高空作業(yè)平臺(tái)工作裝置設(shè)計(jì)與虛擬樣機(jī)仿真分析[D];長(zhǎng)安大學(xué);2011年

2 夏德茂;輪式蜘蛛型高空作業(yè)平臺(tái)底盤(pán)設(shè)計(jì)與有限元分析[D];長(zhǎng)安大學(xué);2011年

3 王浩;高空作業(yè)平臺(tái)工作機(jī)構(gòu)的動(dòng)力學(xué)仿真研究[D];南京林業(yè)大學(xué);2011年

4 劉家輝;履帶起重機(jī)臂架系統(tǒng)動(dòng)力學(xué)仿真[D];大連理工大學(xué);2007年

5 胡雄偉;液壓挖掘機(jī)反鏟裝置的力學(xué)性能分析與優(yōu)化研究[D];中南大學(xué);2009年

6 孫建銳;基于剛?cè)狁詈夏Ｐ偷拈T(mén)座起重機(jī)動(dòng)力學(xué)仿真研究[D];武漢理工大學(xué);2010年

7 李海方;起重機(jī)臂架系統(tǒng)剛?cè)狁詈纤矐B(tài)動(dòng)力學(xué)仿真分析[D];武漢理工大學(xué);2010年

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