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涡轮叶片的持久寿命预测模型

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Indexed by:期刊论文

Date of Publication:2008-12-15

Journal:计算力学学报

Included Journals:PKU、ISTIC

Volume:25

Issue:z1

Page Number:108-112

ISSN No.:1007-4708

Key Words:涡轮叶片;持久寿命;修正θ-Project Concept法

Abstract:镍基高温合金用于制造发动机的高压涡轮叶片.为了提高涡轮叶片持久寿命设计参数选取和设计方法的可靠性,从涡轮叶片代表性部位取材并设计、加工试验试件,进行持久寿命试验.试验过程中记录试件的变形量,进而推算出其蟠变应变,然后利用修正θ-Project Concept法来建立其持久寿命预测方程,并对其进行验证.

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