| 基于灵敏度分析和APDL的塔机结构动态优化设计 |
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| 引用本文： | 杨蔚华,方子帆,何孔德,李响.基于灵敏度分析和APDL的塔机结构动态优化设计[J].三峡大学学报(自然科学版),2013(5):97-100. |
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| 作者姓名： | 杨蔚华 方子帆 何孔德 李响 |
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| 作者单位： | [1]三峡大学机械与材料学院,湖北宜昌443002 [2]三峡大学水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002 |
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| 摘 要： | 在塔机静态分析和模态分析的基础上,为改善结构的动态性能,将优化设计、有限元法和灵敏度分析相结合,以影响塔机动态性能的关键模态频率第一、二阶频率为优化目标,以强度、刚度和稳定性等为约束,通过动态灵敏度分析确定了对优化目标影响较大的构件截面尺寸参数作为设计变量,应用有限元分析软件ANSYS的参数化设计语言APDL和优化模块实现了塔机的结构动态优化设计,优化实例表明结构的动态性能明显提高.
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| 关 键 词： | 塔式起重机 动态优化设计 有限元法 灵敏度分析 |
Dynamic Optimum Design Based on Sensitivity of Tower Crane Structure Analysis and APDL |
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| Yang Weihua,Fang ZifanI He Kongde,Li Xiang.Dynamic Optimum Design Based on Sensitivity of Tower Crane Structure Analysis and APDL[J].Journal of China Three Gorges University(Natural Sciences),2013(5):97-100. |
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| Authors: | Yang Weihua Fang ZifanI He Kongde Li Xiang |
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| Institution: | 1. College of Mechanical and Material Engineering, China Three Gorges Univ. , Yichang 443002, China; 2. Hubei Key Laboratory of Hydroelectric Machinery Design and Maintenance, China Three Gorges Univ. , Yichang 443002, China) |
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| Abstract: | Based on the static analysis and modal analysis for tower crane structure, the key modal frequencies are dyn the taken as the optimization objective, and sensitivity analysis is done for structural parameters to decide the amic optimum design variables. The constraints dynamic optimum design of tower crane structur include strength, rigidity and stability conditions. Then e is performed based on finite element analysis software ANSYS and its APDL. The optimum results of an example show that the dynamic performance of tower crane is improved effectively. |
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| Keywords: | tower crane dynamic optimum design finite element method sensitivity analysis |
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