發(fā)布時(shí)間：2019-06-15 01:28

【摘要】：隨著社會(huì)的快速發(fā)展，城市人口密度越來越大，高層和超高層建筑不斷涌現(xiàn)。作為高層建筑中的交通工具，電梯（特別是曳引式電梯）的應(yīng)用越來越廣泛，速度也在不斷地提高。速度的提高、行程的增大導(dǎo)致高速電梯的結(jié)構(gòu)更復(fù)雜，從而使電梯在高速運(yùn)行過程中表現(xiàn)出更復(fù)雜的動(dòng)態(tài)特性。國內(nèi)外學(xué)者進(jìn)行研究時(shí)，建立的高速電梯動(dòng)力學(xué)模型往往不夠準(zhǔn)確，很少考慮到鋼絲繩和滾動(dòng)導(dǎo)靴在建立高速電梯動(dòng)力學(xué)模型時(shí)的重要性，而且很少通過實(shí)驗(yàn)驗(yàn)證動(dòng)力學(xué)模型的準(zhǔn)確性。為此，本文針對(duì)高速電梯進(jìn)行研究。 （1）建立了高速電梯主要部件與整機(jī)模型，用有限元分析方法對(duì)電梯主要部件進(jìn)行靜力學(xué)分析，，并對(duì)局部結(jié)構(gòu)進(jìn)行優(yōu)化。 （2）考慮高速電梯的結(jié)構(gòu)和動(dòng)態(tài)特性參數(shù)特點(diǎn)，研究了鋼絲繩離散量對(duì)高速電梯垂直動(dòng)力學(xué)模型精確度的影響，根據(jù)機(jī)械系統(tǒng)動(dòng)力學(xué)和拉格朗日方程建立繞繩比為1：1的高速電梯系統(tǒng)的15自由度垂直動(dòng)力學(xué)模型，并使用MATLAB工具仿真分析其相關(guān)動(dòng)態(tài)特性。 （3）建立高速電梯水平方向4自由度振動(dòng)微分方程，進(jìn)行模態(tài)分析；引入滾動(dòng)導(dǎo)靴徑向動(dòng)力學(xué)方程，建立電梯系統(tǒng)水平振動(dòng)8自由度振動(dòng)微分方程，對(duì)比分析滾動(dòng)導(dǎo)靴對(duì)電梯水平方向固有頻率的影響，并針對(duì)導(dǎo)軌的不平順度形式進(jìn)行電梯水平方向振動(dòng)響應(yīng)的研究。 （4）利用頻響函數(shù)法、互功率譜法對(duì)高速電梯系統(tǒng)進(jìn)行模態(tài)實(shí)驗(yàn)，驗(yàn)證高速電梯系統(tǒng)垂直動(dòng)力學(xué)模型和水平動(dòng)力學(xué)模型的準(zhǔn)確性，并對(duì)電梯系統(tǒng)進(jìn)行振動(dòng)響應(yīng)實(shí)驗(yàn)，并根據(jù)仿真分析結(jié)果提出改進(jìn)建議。
[Abstract]:With the rapid development of society, the urban population density is increasing, high-rise and super-high-rise buildings continue to emerge. As a means of transportation in high-rise buildings, elevators (especially traction elevators) are more and more widely used, and the speed is also increasing. With the increase of speed and stroke, the structure of high-speed elevator is more complex, which makes the elevator show more complex dynamic characteristics in the process of high-speed operation. When scholars at home and abroad carry out research, the dynamic model of high-speed elevator is often not accurate enough, and the importance of wire rope and rolling guide boots in establishing the dynamic model of high-speed elevator is rarely considered, and the accuracy of the dynamic model is rarely verified by experiments. Therefore, this paper studies the high-speed elevator. The main results are as follows: (1) the model of the main components and the whole machine of the high speed elevator is established, and the static analysis of the main components of the elevator is carried out by using the finite element analysis method, and the local structure is optimized. (2) considering the structural and dynamic characteristic parameters of high-speed elevator, the influence of wire rope dispersion on the accuracy of vertical dynamic model of high-speed elevator is studied. According to the mechanical system dynamics and Lagrangian equation, the 15-degree-of-freedom vertical dynamic model of high-speed elevator system with rope ratio of 1:1 is established, and the related dynamic characteristics are simulated and analyzed by MATLAB tool. (3) the vibration differential equation of 4 degrees of freedom in the horizontal direction of high speed elevator is established, and the radial dynamic equation of rolling guide boot is introduced, and the 8 degree of freedom vibration differential equation of horizontal vibration of elevator system is established, and the influence of rolling guide boot on the natural frequency of elevator horizontal direction is compared and analyzed, and the vibration response of elevator in horizontal direction is studied according to the irregularity of guide rail. (4) the modal experiment of high speed elevator system is carried out by using frequency response function method and mutual power spectrum method to verify the accuracy of vertical dynamic model and horizontal dynamic model of high speed elevator system, and the vibration response experiment of elevator system is carried out, and some suggestions are put forward according to the simulation analysis results.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU976.3;TU857

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 彭獻(xiàn);游福賀;;車橋耦合系統(tǒng)固有頻率的研究[J];動(dòng)力學(xué)與控制學(xué)報(bào);2010年03期

2 朱昌明,王印輝,莊顯會(huì);電梯的抗震計(jì)算分析[J];工程抗震;2000年03期

3 張新玉;張文平;李全;王芝秋;;圓柱形薄殼結(jié)構(gòu)的試驗(yàn)?zāi)B(tài)分析方法研究[J];哈爾濱工程大學(xué)學(xué)報(bào);2006年01期

4 李勛;張東明;趙開寧;;錘擊法在航空發(fā)動(dòng)機(jī)部件模態(tài)試驗(yàn)中的常見問題淺析[J];航空發(fā)動(dòng)機(jī);2010年05期

5 金衛(wèi)清,張惠僑,鄭延軍;電梯機(jī)械系統(tǒng)動(dòng)態(tài)特性的建模分析[J];機(jī)械設(shè)計(jì)與研究;1999年03期

6 傅武軍,朱昌明,張長友,葉慶泰;高速電梯水平振動(dòng)建模及動(dòng)態(tài)響應(yīng)分析[J];機(jī)械設(shè)計(jì)與研究;2003年06期

7 武麗梅;鞏煜琰;李雪楓;;曳引式電梯機(jī)械系統(tǒng)垂直振動(dòng)動(dòng)態(tài)特性分析[J];機(jī)械設(shè)計(jì)與制造;2007年10期

8 尹紀(jì)財(cái);芮延年;蔣黎明;黃波;李云波;;高速電梯多自由度水平動(dòng)態(tài)特性及其仿真的研究[J];機(jī)械設(shè)計(jì);2011年10期

9 郭麗峰;張國雄;李醒飛;劉文耀;曾勤謙;;電梯轎廂-導(dǎo)軌耦合動(dòng)力系統(tǒng)建模及其動(dòng)態(tài)特性[J];機(jī)械工程學(xué)報(bào);2007年08期

10 張長友;朱昌明;;電梯系統(tǒng)動(dòng)態(tài)固有頻率計(jì)算方法及減振策略[J];系統(tǒng)仿真學(xué)報(bào);2007年16期

相關(guān)博士學(xué)位論文 前1條

1 杜小強(qiáng);高速曳引電梯動(dòng)態(tài)分析理論及轎廂噪聲預(yù)測方法研究[D];浙江大學(xué);2008年

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