摘要
全断面岩石掘进机(TBM)刀盘是TBM的核心部件,其结构参数设计是其核心技术之一。论述以青海隧道的TBM刀盘结构设计为背景,考虑青海隧道地质岩石边界条件,根据相关的刀盘结构参数设计的复杂工程技术要求,建立了刀盘结构主参数优化设计模型,以刀盘结构强度和刚度为优化目标,采用近似相应面模型建立刀盘结构强度和刚度分析的近似模型,进而采用多目标遗传算法对刀盘主要结构参数进行优化。与原TBM刀盘结构设计方案进行对比表明,本文获取到的刀盘主结构优化设计参数具有更好的刀盘结构刚度和强度,可以改善刀盘主轴承受力状况,延长主轴承寿命和滚刀寿命,可以为工程师在进行刀盘结构设计时提供刀盘的主结构参数,提高刀盘结构的强度和刚度性能。
Cutterhead is one of the key components of a Tunnel Boring Machine （ TBM）, therefore the eutterhead structure design is a key issue in the full face rock TBM design. Taking the TBM cutterhead design problem of the Qinghai tunnel project as a background, a master parameter optimal design model of eutterhead structure is formulated in this paper. In this model, the geological boundary conditions of Qinghai tunnel project are considered, based on the complex engineering technical requirements of the cutterhead structure design. As the objective function of the model is a composite function of cutterhead structural strength and stiffness, the response surface method is applied to formulate the approximate function of objective function in order to reduce the solution scale of optimal problem. A multi - objec- tive genetic algorithm is used to solve the cutterhead structure design problem. The computational experiment results show that compared with original eutterhead structure scheme, the obtained optimal scheme of the cutterhead structure have the better uniform force distribution which can improve the cutterhead structure performance.
出处
《机械设计与研究》
CSCD
北大核心
2011年第1期83-86,90,共5页
Machine Design And Research
基金
国家重点基础研究发展计划973资助项目(2007CB714000)
国家青年自然科学基金资助项目(51005033)
辽宁省科技攻关项目(2008220017)
博士后特别资助项目(201003618)
中央高校基本科研业务费专项资金项目
