| 基于ANSYS／Fatigue的泵用压电振子疲劳分析 |
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| 引用本文： | 何秀华,毕雨时,王健,禚洪彩. 基于ANSYS／Fatigue的泵用压电振子疲劳分析[J]. 排灌机械, 2011, 29(1): 35-38,81. DOI: 10.3969.j.issn.1674-8530.2011.01.008 |
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| 作者姓名： | 何秀华 毕雨时 王健 禚洪彩 |
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| 作者单位： | 江苏大学,能源与动力工程学院,江苏镇江,212013 |
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| 基金项目： | 江苏省高校自然科学研究计划项目(04KJB470026) |
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| 摘 要： | 为预测压电泵驱动部件压电振子的疲劳寿命，建立了双晶片压电振子的有限元模型，并应用ANSYS软件对模型进行静力学分析，得到双晶片压电振子的等效应力图和危险区域最大应力节点．利用ANSYS／Fatigue模块对这些危险点进行疲劳分析，并和其他区域应力集中的点进行比较，得到双晶片压电振子的疲劳耗用系数．利用Miner法则判断压电振子是否满足设计要求，并预测其疲劳寿命．研究了不同基底材料以及结构参数对双晶片压电振子疲劳寿命的影响，并和单晶片压电振子进行了对应比较．结果表明，基底最优材料为Cu，半径变化不影响其疲劳寿命，而厚度变化对疲劳寿命的影响要比电压变化的影响要大，双晶片压电振子的疲劳寿命总要比单晶片的稍长些，这为选择和优化压电振子结构提供了理论依据．
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| 关 键 词： | 压电泵 压电振子 疲劳分析 耗用系数 疲劳寿命 |
Fatigue analysis of piezoelectric Vibrator for pump based on ANSYS/Fatigue |
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| He Xiuhua,Bi Yushi,Wang Jian,Zhuo Hongcai. Fatigue analysis of piezoelectric Vibrator for pump based on ANSYS/Fatigue[J]. Drainage and Irrigation Machinery, 2011, 29(1): 35-38,81. DOI: 10.3969.j.issn.1674-8530.2011.01.008 |
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| Authors: | He Xiuhua Bi Yushi Wang Jian Zhuo Hongcai |
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| Affiliation: | He Xiuhua,Bi Yushi,Wang Jian,Zhuo Hongcai(School of Energy and Power Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China) |
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| Abstract: | In order to predict fatigue life of the piezoelectric vibrator used in piezoelectric pump,the finite element model of bimorph piezoelectric vibrator was made and static analysis was carried out by using ANSYS software.The equivalent stress contours were obtained,and the danger points were found out.Then the fatigue analysis was carried out to those danger points by applying ANSYS/Fatigue module and was compared with the other concentrated points.Consequently the fatigue consumption coefficients were obtaine... |
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| Keywords: | piezoelectric pump piezoelectric vibrator fatigue analysis consumption coefficient |
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