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重载冲击激励下TBM刀盘振动特性的影响因素分析

DOI: 10.3969/j.issn.1006-7043.201312008

Keywords: 刀盘, 振动特性, 多体动力学, 刀盘转速, 刀盘拓扑, 速度波动

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Abstract:

刀盘是TBM的关键部件,刀盘的性能对TBM掘进性能影响很大.刀盘在掘进时承受的重载冲击扭矩和推力将导致剧烈振动,引起刀盘寿命下降甚至破坏以致影响掘进效率.基于ADAMS多体系统动力学仿真平台,建立了复杂因素影响下“辽西北”引水工程TBM主机系统的动力学模型,探讨了刀盘转速、刀盘拓扑形式和小齿轮速度波动与不同步等因素对刀盘振动性能的影响规律.仿真结果表明:为了减小刀盘振动,在设计TBM主机时应采取“铜钱”型拓扑形式,在控制TBM时应尽量避免驱动齿轮转速波动和不同步,在较低的刀盘转速下进行掘进.

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