| 流体机械可靠性预测的非线性数值方法 |
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| 引用本文： | 杨健.流体机械可靠性预测的非线性数值方法[J].机械工程学报,2004,40(6):1-4. |
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| 作者姓名： | 杨健 |
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| 作者单位： | 浙江大学化工机械研究所,杭州,310027 |
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| 基金项目： | 国家自然科学基金(19972062)，浙江省自然科学基金(502092) |
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| 摘 要： | 对承受流体动力作用的机械结构进行可靠性预测,在非线性流体激振理论基础上,提出了非线性振荡边界元数值方法。给出了流体激振可靠性分析的非线性振荡模型,建立起流体动力分析的边界积分方程及求解格式,提出了流体结构动力可靠度的计算方法。针对叶轮机械的叶片可靠性分析显示,该方法能快速、有效地预测结构承受流体激振的可靠性和安全性,开发的软件可应用于流体机械结构稳定性评定和管路系统振动分析等化工过程及动力工程问题。
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| 关 键 词： | 流体机械 流体激振 边界元 可靠性预测 |
| 修稿时间： | 2003年6月1日 |
NONLINEAR NUMERICAL METHOD FOR THE STRUCTURE RELIABILITY PREDICTION OF TURBO MACHINE |
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| Yang Jian Institute of Chemical Engineering Process and Machinery,Zhejiang University,Hangzhou.NONLINEAR NUMERICAL METHOD FOR THE STRUCTURE RELIABILITY PREDICTION OF TURBO MACHINE[J].Chinese Journal of Mechanical Engineering,2004,40(6):1-4. |
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| Authors: | Yang Jian Institute of Chemical Engineering Process and Machinery Zhejiang University Hangzhou |
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| Affiliation: | Yang Jian Institute of Chemical Engineering Process and Machinery,Zhejiang University,Hangzhou 310027 |
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| Abstract: | The nonlinear oscillating boundary element method
on the oscillating fluid mechanics theorem is presented for the
flow structure vibration reliability prediction of turbo machine.
The method includes the nonlinear oscillating mathematics
model of the flow induced the vibration of the structure,the
direct solution of the nonlinear oscillating boundary integral
numerical equqtions and the algorithm of the fiuid structure
vibration reliability prediction. The numerical example for the
structure reliability prediction of the turbine blade shows that
the method is fast and effective.The method can be developed
for flow structure stability assessment and the flow induced
vibration analysis of pipe system in chemical process and
power engineering. |
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| Keywords: | Turbo machine Fluid vibration Boundary element method Reliabity prediction |
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