| 一种功能梯度材料活塞的材料梯度方程选择 |
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| 引用本文： | 王素,倪春阳,朱心雄. 一种功能梯度材料活塞的材料梯度方程选择[J]. 机械科学与技术, 2006, 25(2): 133-138 |
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| 作者姓名： | 王素 倪春阳 朱心雄 |
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| 作者单位： | 北京航空航天大学,汽车工程系,北京,100083;北京航空航天大学,汽车工程系,北京,100083;北京航空航天大学,汽车工程系,北京,100083 |
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| 摘 要： | 应用复合材料热性能理论,采用有限元分析软件AD INA分析具有不同参数的材料梯度方程的陶瓷纤维梯度增强活塞的温度分布和应力分布。结果表明:陶瓷纤维梯度层可以明显改变活塞温度分布,缓和由于热膨胀系数不匹配,在陶瓷纤维增强层与活塞本体交界处产生的应力。并根据计算结果选出最优的材料梯度方程。
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| 关 键 词： | 陶瓷纤维梯度增强活塞 温度场 应力场 有限元 材料梯度方程 |
| 文章编号： | 1003-8728（2006）02-0133-06 |
| 收稿时间： | 2005-03-30 |
| 修稿时间： | 2005-03-30 |
Selection of Material Gradient Equations for Functional Gradient Material Pistons |
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| Wang Su,Ni Chunyang,Zhu Xinxiong. Selection of Material Gradient Equations for Functional Gradient Material Pistons[J]. Mechanical Science and Technology for Aerospace Engineering, 2006, 25(2): 133-138 |
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| Authors: | Wang Su Ni Chunyang Zhu Xinxiong |
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| Affiliation: | Department of Automobile Engineering, Beihang University, Beijing 100083 |
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| Abstract: | The paper uses the theory of thermal performance of composites and finite element analysis software called ADINA to analyze the temperature field and stress field of functional gradient material pistons which have different material gradient equations. Analysis results indicate that using gradient aluminum matrix composite layers reinforced by ceramic fibers can remarkably change the temperature distribution of pistons and relax the stress at the interface between gradient aluminum matrix composite layers reinforced by ceramic fibers and the noumena of the pistons which are caused by mismatch among different coefficients of thermal expansion. Thus the best material gradient equation is selected. |
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| Keywords: | gradient aluminum matrix composite piston reinforced by ceramic fibers temperature field stress field finite element material gradient equation |
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