| 具有大刚度曲柄的弹性曲柄摇杆机构的动态特性研究 |
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| 引用本文： | 王生泽,廖道训,余俊.具有大刚度曲柄的弹性曲柄摇杆机构的动态特性研究[J].华中科技大学学报(自然科学版),1990(Z3). |
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| 作者姓名： | 王生泽 廖道训 余俊 |
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| 作者单位： | 华中理工大学机械工程一系
(王生泽，廖道训)，华中理工大学机械工程一系(余俊) |
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| 摘 要： | 本文应用传递矩阵法导出了具有大刚度曲柄的曲柄摇杆机构固有频率的简捷解析式;首次证明这类机构在其弹性杆轴向变形可忽略的条件下,它的固有频率不仅与机构位置无关,而且可简化为各弹性杆简支状态下固有频率值的集合,并在数值上等于机构的临界速度.
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| 关 键 词： | 曲柄摇杆机构 大刚度曲柄 弹性杆 传递矩阵 固有频率 临界速度 |
On Dynamic Behaviour of a Flexible Crank-Rocker Mechanism with a Rigid Crank |
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| Wang Shengze,Liao Daoxun,Yu Jun.On Dynamic Behaviour of a Flexible Crank-Rocker Mechanism with a Rigid Crank[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1990(Z3). |
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| Authors: | Wang Shengze Liao Daoxun Yu Jun |
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| Institution: | Wang Shengze Liao Daoxun Yu Jun |
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| Abstract: | A simple analytic expression for the natural frequency or critical speed of a flexible crank-rocker mechanism with a rigid crank is derived by the transfer matrix method. It is proved that if all flexible links of the mechanism are sufficiently axially rigid, the natural frequencies of the mechanism in different positions would be identical, and it is found that the natural frequencies are just the sets of natural frequencies of its individual flexible links with simply supported ends and that the natural frequencies are equal numerically to the critical speeds of the mechanism. |
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| Keywords: | Crank-rocker mechanism Rigid crank Elastic link Transfer matrix Natural frequency Critical speed |
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