焦丽;李晓豁;

• 1:辽宁工程技术大学机械工程学院

摘要(Abstract)：

为研究采煤机整机振动特性，将采煤机整机简化为7个集中质量，考虑平滑靴与导向滑靴支撑位置刚度和阻尼的非线性，利用拉格朗日方程建立采煤机整机的10自由度非线性动力学模型，并采用Newmark-β法对所建立模型求解.以MG300/700-WD型采煤机为例，求得采煤机在随机虚拟激励作用下各集中质量的振动响应.将机身沿行走方向、沿煤壁方向的振动响应的计算值与实验值进行对比，验证了所建模型的正确性与可靠性.所建立的模型为采煤机振动特性的深入研究提供了参考.

关键词(KeyWords)： 采煤机;非线性;动力学模型;集中质量;振动响应

Abstract:

Keywords:

基金项目(Foundation): 辽宁工程技术大学校基金资助项目（07AL22）;; 辽宁省教育厅重大基础研究项目（202182059）

作者(Authors): 焦丽;李晓豁;

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