本文選題：全斷面巖石隧道掘進(jìn)機(jī)　切入點(diǎn)：撐靴液壓缸　出處：《上海交通大學(xué)學(xué)報(bào)》2017年09期

【摘要】：全斷面巖石隧道掘進(jìn)機(jī)(Tunnel Boring Machine,TBM)的振動(dòng)將造成其撐靴液壓缸損傷,進(jìn)而影響TBM的掘進(jìn).考慮液壓缸的結(jié)構(gòu)及其工作過程中的變剛度特性,基于拉格朗日方法建立了TBM撐靴液壓缸集中參數(shù)動(dòng)力學(xué)模型,分析了活塞桿伸出量、撐靴界面剛度和油液等效剛度等因素對(duì)液壓缸振動(dòng)的影響,并分析了TBM工作過程中,撐靴液壓缸內(nèi)部的載荷特性.結(jié)果表明:隨著活塞桿伸出量的增加,液壓缸的固有頻率略有下降;隨著撐靴界面剛度和導(dǎo)向銅套的等效剛度增加,液壓缸的固有頻率略有提高;活塞桿密封和油液等效剛度對(duì)撐靴液壓缸的振動(dòng)固有頻率的影響最明顯.通過分析TBM撐靴液壓缸的動(dòng)態(tài)特性,可以得到撐靴液壓缸的振動(dòng)載荷規(guī)律,為研究液壓缸的損傷提供了載荷基礎(chǔ).
[Abstract]:The vibration of full section rock tunnel tunneling machine tunnel Boring machine will result in the damage of its boot hydraulic cylinder, and then affect the driving of TBM. Considering the structure of hydraulic cylinder and its variable stiffness characteristics in the working process, Based on the Lagrange method, the dynamic model of concentrated parameters of TBM propping shoe hydraulic cylinder is established, and the effects of piston rod protruding amount, interface stiffness and equivalent stiffness of oil on the vibration of hydraulic cylinder are analyzed, and the working process of TBM is analyzed. The results show that the natural frequency of the hydraulic cylinder decreases slightly with the increase of the piston rod extension, and the natural frequency of the hydraulic cylinder slightly increases with the increase of the interface stiffness of the bracing boot and the equivalent stiffness of the guide copper sleeve. The piston rod seal and the equivalent stiffness of oil have the most obvious influence on the vibration natural frequency of the hydraulic cylinder. By analyzing the dynamic characteristics of the TBM hydraulic cylinder, the vibration load law of the hydraulic cylinder can be obtained. It provides a load basis for studying the damage of hydraulic cylinder.
【作者單位】： 上海交通大學(xué)機(jī)械系統(tǒng)與振動(dòng)國(guó)家重點(diǎn)實(shí)驗(yàn)室;上海交通大學(xué)上海市復(fù)雜薄板結(jié)構(gòu)數(shù)字化制造重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51275292) 國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展規(guī)劃(973)項(xiàng)目(2013CB035403)
【分類號(hào)】：U455.31

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