| QY50汽车起重机回转台失稳分析 |
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| 引用本文： | 孟庆华,周晓军,邹广德.QY50汽车起重机回转台失稳分析[J].汽车工程,2003,25(6):645-648. |
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| 作者姓名： | 孟庆华 周晓军 邹广德 |
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| 作者单位： | 1. 浙江大学,抗州,310027
2. 山东理工大学,淄博,255012 |
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| 摘 要： | QY5 0汽车起重机回转台失稳问题本质上是不规则平板的失稳。通过坐标变换把任意形状的四边形变换到 2× 2单位正方形区域里进行计算 ,然后从弹塑性力学板壳理论出发 ,采用 pb - 2位移函数作为分析平板失稳时板的挠度曲线函数 ,对求解任意形状四边形平板发生屈曲时的临界载荷的算法进行了探讨。推导了求解屈曲临界载荷的刚度矩阵方程。这套算法与有关分析平板屈曲的有限元法及有限样条法相比 ,其优点是不需要对平板进行单元划分 ,而是把整个板作为一体来研究 ,计算量大为降低。
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| 关 键 词： | QY50汽车起重机 回转台 稳定性 弹塑性力学 屈曲临界载荷 |
The Instability Analysis on the Slewing Table of QY50 Autocrane |
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| Meng Qinghua & Zhou XiaojunZou Guangde Zhejiang University,Hangzhou Shandong University of Technology,Zibo.The Instability Analysis on the Slewing Table of QY50 Autocrane[J].Automotive Engineering,2003,25(6):645-648. |
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| Authors: | Meng Qinghua & Zhou XiaojunZou Guangde Zhejiang University Hangzhou Shandong University of Technology Zibo |
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| Institution: | Meng Qinghua & Zhou XiaojunZou Guangde Zhejiang University,Hangzhou 310027Shandong University of Technology,Zibo 255012 |
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| Abstract: | Essentially,the instability of autocrane slewing table is caused by irregular plates.In this paper,the mechanism of instability of irregular plates is explored theoretically,their critical loads are calculated and the stiffness matrix equations for solving critical bucking load are derived. |
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| Keywords: | Autocrane Slewing table Stability |
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