【摘要】：隨著人們對(duì)礦產(chǎn)資源的不斷開采，提升系統(tǒng)的提升高度和運(yùn)行速度都在不斷的提高。由此產(chǎn)生了對(duì)提升系統(tǒng)中提升鋼絲繩的安全性和穩(wěn)定性的更高的要求。鑒于此，對(duì)提升系統(tǒng)在運(yùn)動(dòng)過(guò)程中提升鋼絲繩的動(dòng)態(tài)特性進(jìn)行深入且詳細(xì)的研究已經(jīng)迫在眉睫。 礦井提升系統(tǒng)是一種典型的柔性傳動(dòng)提升系統(tǒng)，一般由摩擦輪、提升容器/平衡錘、提升鋼絲繩、平衡鋼絲繩等主要部件構(gòu)成。提升鋼絲繩與提升容器相連，從而引導(dǎo)提升容器的上下運(yùn)行。由于提升鋼絲繩自身的柔性特性以及復(fù)雜的外界干擾條件，因此在提升系統(tǒng)的整個(gè)運(yùn)動(dòng)過(guò)程中，提升鋼絲繩的動(dòng)態(tài)特性極其復(fù)雜。本文采用理論分析與現(xiàn)場(chǎng)真實(shí)試驗(yàn)相結(jié)合的研究方法，對(duì)立井提升系統(tǒng)提升鋼絲繩的動(dòng)態(tài)特性進(jìn)行了較深入的研究。 根據(jù)礦井提升系統(tǒng)中提升鋼絲繩的柔性特性，將平衡鋼絲繩的時(shí)變質(zhì)量等效到提升容器上，忽略其振動(dòng)產(chǎn)生的影響�；谀芰糠�，利用哈密頓原理，建立柔性提升鋼絲繩縱向-橫向耦合振動(dòng)的非線性控制微分方程；并使用數(shù)值求解方法——伽遼金法，，對(duì)所建立的方程進(jìn)行求解。理論模型的可靠性與有效性通過(guò)現(xiàn)場(chǎng)試驗(yàn)進(jìn)行了驗(yàn)證。 文章以雙激勵(lì)條件下的提升鋼絲繩橫向振動(dòng)模型為基礎(chǔ)，研究了上、下激勵(lì)分別、共同作用以及載荷對(duì)提升鋼絲繩橫向振動(dòng)動(dòng)態(tài)特性的影響。并通過(guò)改變外界激勵(lì)的頻率，得出外界激勵(lì)頻率與提升容器的固有頻率相等時(shí)，提升鋼絲繩橫向振動(dòng)振幅最大，應(yīng)盡量避免之。接著利用控制變量與仿真的方法，分別研究了提升容器與罐道之間彈簧的剛度系數(shù)k、集中阻尼c、以及存在于整個(gè)提升系統(tǒng)的系統(tǒng)阻尼cd對(duì)提升鋼絲繩的橫向振動(dòng)影響。 總體來(lái)說(shuō)，本文對(duì)立井提升系統(tǒng)中提升鋼絲繩的動(dòng)態(tài)特性進(jìn)行了深入的理論和試驗(yàn)研究；著重揭示了由于外界干擾激勵(lì)以及不同結(jié)構(gòu)參數(shù)對(duì)提升鋼絲繩橫向振動(dòng)產(chǎn)生的影響。本文的研究成果為柔性提升系統(tǒng)的相關(guān)研究提供了分析思路和理論基礎(chǔ)，試圖為更加深入地研究礦井提升系統(tǒng)提升鋼絲繩的安全性提供了途徑與方法。
[Abstract]:With the continuous exploitation of mineral resources, the elevation of the system and the speed of operation are constantly improved. Therefore, higher requirements for the safety and stability of the hoisting rope in the hoisting system are created. In view of this, it is urgent to study the dynamic characteristics of hoisting wire rope in motion. Mine hoisting system is a typical flexible transmission hoisting system, which is generally composed of friction wheel, lifting vessel / balance hammer, hoisting wire rope, balancing wire rope and other main components. The hoisting wire rope is connected to the lifting container to guide the lifting vessel up and down. Because of the flexible characteristics of the hoisting wire rope and the complex external interference conditions, the dynamic characteristics of the hoisting rope are extremely complex during the whole motion process of the hoisting system. In this paper, the dynamic characteristics of hoisting wire rope of shaft hoisting system are studied deeply by combining theoretical analysis with field real test. According to the flexible characteristics of hoisting wire rope in mine hoisting system, the time-varying mass of balanced wire rope is equivalent to the lifting vessel, and the effect of vibration is ignored. Based on energy method and Hamiltonian principle, the nonlinear governing differential equation of longitudinal and transverse coupling vibration of flexible hoisting wire rope is established, and the Galerkin method is used to solve the equation. The reliability and validity of the theoretical model are verified by field tests. Based on the transverse vibration model of hoisting wire rope under the condition of double excitation, the effects of upper and lower excitation, mutual action and load on the dynamic characteristics of transverse vibration of hoisting wire rope are studied in this paper. By changing the frequency of external excitation, it is concluded that when the external excitation frequency is equal to the natural frequency of the lifting vessel, the transverse vibration amplitude of the hoisting wire rope is the largest, which should be avoided as far as possible. Then the effects of spring stiffness coefficient k, concentrated damping c, and system damping cd in the whole hoisting system on the transverse vibration of hoisting wire rope are studied by means of control variables and simulation methods, respectively. In general, the dynamic characteristics of hoisting rope in shaft hoisting system are studied theoretically and experimentally in this paper, and the influence of external disturbance and different structural parameters on the transverse vibration of hoisting wire rope is emphasized. The research results in this paper provide an analytical idea and theoretical basis for the research of flexible hoisting system, and try to provide a way and method for further research on the safety of hoisting wire rope in mine hoisting system.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD532

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 遲彩芬;王文生;陸凱;;鋼絲繩損壞原因及防護(hù)措施[J];安全;2009年08期

2 劉永;關(guān)于哈密頓原理的應(yīng)用條件[J];大學(xué)物理;1989年12期

3 王春華;繩罐道多繩摩擦提升系統(tǒng)橫向振動(dòng)特性的數(shù)值分析[J];阜新礦業(yè)學(xué)院學(xué)報(bào)(自然科學(xué)版);1997年02期

4 阮運(yùn)強(qiáng);;提升鋼絲繩的選擇與安裝使用[J];金屬制品;2009年03期

5 馬軍;葛世榮;張德坤;;鋼絲繩股內(nèi)鋼絲的載荷分布[J];機(jī)械工程學(xué)報(bào);2009年04期

6 嚴(yán)世榕,聞邦椿;提升鋼絲繩張力的計(jì)算機(jī)仿真[J];煤礦機(jī)械;1998年03期

7 王中琪,楊順清,李顯寅;提升鋼繩在動(dòng)負(fù)荷下的振動(dòng)分析[J];西南工學(xué)院學(xué)報(bào);1996年04期

8 傅武軍,廖小波,朱昌明;基于ADAMS的電梯橫向振動(dòng)頻域分析及參數(shù)優(yōu)化[J];系統(tǒng)仿真學(xué)報(bào);2005年06期

9 王亮;陳懷海;賀旭東;游偉倩;;軸向運(yùn)動(dòng)變長(zhǎng)度懸臂梁的振動(dòng)控制[J];振動(dòng)工程學(xué)報(bào);2009年06期

10 王文;錢江;;電梯懸掛系統(tǒng)在建筑搖晃引起位移激勵(lì)下橫向振動(dòng)分析[J];振動(dòng)與沖擊;2013年07期

相關(guān)博士學(xué)位論文 前2條

1 蔣玉強(qiáng);立井剛性罐道系統(tǒng)的非線性耦合特性及狀態(tài)評(píng)估研究[D];中國(guó)礦業(yè)大學(xué);2011年

2 曹國(guó)華;礦井提升鋼絲繩裝載沖擊動(dòng)力學(xué)行為研究[D];中國(guó)礦業(yè)大學(xué);2009年

本文編號(hào)：2401278