【摘要】：全球經(jīng)濟(jì)快速發(fā)展的驅(qū)動下,高層建筑數(shù)量不斷增多,中高速曳引電梯滿足了高層建筑高效利用的需求。但速度和行程的提高加劇了電梯的振動,而電梯振動又對乘坐舒適性和安全性產(chǎn)生重要影響,故對電梯振動特性的分析研究尤為重要。本論文對高速曳引電梯機(jī)械系統(tǒng)進(jìn)行建模,得出高速曳引電梯機(jī)械系統(tǒng)各階固有頻率在不同工況下的變化,并仿真分析滾動導(dǎo)靴和轎廂側(cè)部減振橡膠對振動特性的影響,為高速曳引式電梯系統(tǒng)的減振設(shè)計(jì)提供依據(jù)。本文主要研究內(nèi)容如下：(1)從結(jié)構(gòu)和組成上分析了高速曳引電梯振動產(chǎn)生原因,通過模態(tài)分析機(jī)械系統(tǒng)在井道內(nèi)的振動響應(yīng)特性,為分析高速曳引電梯機(jī)械系統(tǒng)各階固有頻率在不同工況下的變化奠定理論基礎(chǔ)。(2)考慮到鋼絲繩的離散狀況,對電梯垂直方向進(jìn)行振動建模,將電梯轎廂的運(yùn)行過程離散化,推導(dǎo)出19自由度垂直振動模型；通過模態(tài)分析得出高速曳引電梯機(jī)械系統(tǒng)各階固有頻率隨轎廂載荷、轎廂在井道中位置的變化情況。(3)考慮到滾動導(dǎo)靴對電梯水平方向運(yùn)動特性的影響,分析了滾動導(dǎo)靴與導(dǎo)軌的相互作用,推導(dǎo)出滾動導(dǎo)靴的徑向動力學(xué)模型,建立了8自由度高速曳引電梯水平方向振動模型,分析了電梯水平方向的振動特性。(4)通過MATLAB/SIMULINK建立高速曳引電梯水平方向仿真模型,分析電梯系統(tǒng)振動位移、速度、加速度隨時(shí)間的變化曲線,并仿真分析了滾動導(dǎo)靴彈簧和轎廂側(cè)部減振橡膠剛度系數(shù)對電梯水平振動的影響,為實(shí)現(xiàn)高速曳引電梯減振防振提供了依據(jù)。
[Abstract]:Driven by the rapid development of global economy, the number of high-rise buildings is increasing. However, the increase of speed and stroke intensifies the vibration of elevator, and the vibration of elevator has an important effect on ride comfort and safety, so it is very important to analyze and study the vibration characteristics of elevator. In this paper, the mechanical system of high speed traction elevator is modeled, and the natural frequencies of each order of the mechanical system of high speed traction elevator are obtained under different working conditions, and the effects of rolling guide boots and side damping rubber of car on vibration characteristics are analyzed by simulation. It provides the basis for the vibration reduction design of high speed traction elevator system. The main contents of this paper are as follows: (1) the causes of the vibration of the high-speed traction elevator are analyzed from the structure and composition, and the vibration response characteristics of the mechanical system in the shaft are analyzed by modal analysis. It lays a theoretical foundation for analyzing the variation of the natural frequencies of each order of the mechanical system of high speed traction elevator under different working conditions. (2) considering the discrete condition of wire rope, the vibration modeling of elevator vertical direction is carried out, and the running process of elevator car is discretized. The vertical vibration model of 19 degrees of freedom is derived, and the natural frequencies of each order of the mechanical system of high-speed traction elevator are obtained by modal analysis with the loading of the car. (3) considering the influence of the rolling guide shoe on the horizontal movement characteristic of elevator, the interaction between the rolling guide shoe and the guide rail is analyzed, and the radial dynamic model of the rolling guide shoe is deduced. The horizontal vibration model of high speed traction elevator with 8 degrees of freedom is established, and the vibration characteristics of the elevator in horizontal direction are analyzed. (4) the simulation model of horizontal direction of high speed traction elevator is established by MATLAB/SIMULINK, and the vibration displacement and velocity of elevator system are analyzed. The change curve of acceleration with time and the influence of rolling guide shoe spring and rubber stiffness coefficient on horizontal vibration of elevator are simulated and analyzed, which provides the basis for the realization of vibration control and vibration proof of high-speed traction elevator.
【學(xué)位授予單位】：山東建筑大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU976.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 薛艷梅;;電梯曳引鋼絲繩的檢驗(yàn)[J];工業(yè)安全與環(huán)保;2009年11期

2 石曉東;;振動、噪聲對人體的影響[J];環(huán)境;1996年07期

3 馬登華;何永勝;;淺談電梯導(dǎo)軌隔振降噪的實(shí)踐研究[J];環(huán)境工程;2012年S1期

4 丁子佳;呂大尉;李吉;;電梯噪聲分析與控制[J];噪聲與振動控制;2005年06期

5 陸志華;王水來;;電梯轎廂噪聲控制研究[J];噪聲與振動控制;2006年01期

6 夏冰虎;史熙;;導(dǎo)軌激勵下電梯水平振動的動力學(xué)建模[J];機(jī)械制造與自動化;2012年05期

7 陳祥;;電梯運(yùn)行振動淺析[J];中國高新技術(shù)企業(yè);2012年Z1期

8 季江龍;;電梯運(yùn)行噪聲的分析[J];科技創(chuàng)新導(dǎo)報(bào);2011年07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

，

本文編號：2219465