| 基于随机最优控制的主动悬架构件的动态疲劳可靠度分析 |
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| 引用本文： | 王其东,梅雪晴.基于随机最优控制的主动悬架构件的动态疲劳可靠度分析[J].中国机械工程,2011,22(24). |
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| 作者姓名： | 王其东 梅雪晴 |
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| 作者单位： | 1. 合肥工业大学,合肥230009／安徽理工大学,淮南232001
2. 合肥工业大学,合肥,230009 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目(20060359005) |
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| 摘 要： | 针对两自由度的车辆模型,应用随机振动和随机最优控制的理论,推导悬架构件随机动载荷的统计规律的计算方法,建立变车速情况下随机动载荷的概率模型,提出基于随机最优控制的主动悬架构件的动态疲劳可靠度的分析方法。仿真结果表明,主动悬架构件随机动载荷明显大于被动悬架构件随机动载荷,主动悬架系统构件的动态疲劳可靠度在整个使用过程中都要低于普通被动悬架构件的动态疲劳可靠度,说明主动悬架构件的可靠性较普通被动悬架有所降低。
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| 关 键 词： | 悬架 随机最优控制 随机动载荷 疲劳可靠度 |
Analysis of Dynamic Fatigue Reliability of Active Suspension Based on Random Optimal Control |
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| Wang Qidong, Mei Xueqing .Hefei University of Technology,Hefei, .Anhui University of Technology,Huainan,Anhui.Analysis of Dynamic Fatigue Reliability of Active Suspension Based on Random Optimal Control[J].China Mechanical Engineering,2011,22(24). |
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| Authors: | Wang Qidong Mei Xueqing Hefei University of Technology Hefei Anhui University of Technology Huainan Anhui |
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| Affiliation: | Wang Qidong1,2 Mei Xueqing1 1.Hefei University of Technology,Hefei,230009 2.Anhui University of Technology,Huainan,Anhui,232001 |
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| Abstract: | Using the theory of random vibration and random optimal control,a calculation method of statistical law of random dynamic load on suspension parts for the two-degree vehicle model was deducted.The probability model of random dynamic load under variational velocity of the vehicle was established.An analysis method of the dynamic fatigue reliability of suspension parts based on random optimal control was proposed.The simulation results show that the random dynamic load on the active suspension parts is in evi... |
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| Keywords: | suspension random optimal control random dynamic load fatigue reliability |
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