Principles and methods for determining calendar life and corrosion tolerance of mechanical parts

In order to facilitate the determination of the calendar life of mechanical parts,the author summarized his relevant research papers that had studied for many years as eight distinct topics:(A).The principle and method for compiling the equal-damage temperature and humidity spectrum;(B).The principle for preparing the high concentration medium solution;(C).The principle and method for determining the metal calendar life;(D).The principle and method for determining the protective coating calendar life;(E).The principle and method for determining the total calendar life;(F).The principle of the reliability processing;(G).The principle and method for determining the corrosion damage tolerance;(H).The principle and matching design method to ensure that the total fatigue life and the total calendar life of the mechanical part were safe simultaneously.The above contents established a complete set of theoretical systems and methods for determining the calendar life.

汽轮机高温部件总寿命的计算方法及工程验证

提出了大型汽轮机高温部件在低周疲劳与蠕变交互作用下总寿命的计算方法。介绍了汽轮机高温部件的低周疲劳裂纹萌生寿命、蠕变裂纹萌生寿命、低周疲劳裂纹扩展寿命与蠕变裂纹扩展寿命的计算方法,给出了汽轮机高温部件在低周疲劳与蠕变交互作用下裂纹萌生日历寿命、裂纹扩展日历寿命与总寿命的计算方法和总寿命的评定方法,并通过2台超临界600 MW汽轮机高压内缸外表面寿命薄弱部位总寿命的计算分析进行工程验证。结果表明:1号汽轮机高压内缸总寿命计算的相对误差为4.12%,2号汽轮机高压内缸总寿命计算的相对误差为-0.48%,计算结果符合电站服役的工程实际。

全机日历寿命确定及相关问题

本文以飞机为例,根据疲劳寿命与日历寿命的内在关系,应用笔者创建的日历寿命理论和方法,研究解决国际日历寿命领域尚未解决的全机日历寿命确定和3个相关问题:①总疲劳寿命延长后金属腐蚀容限和总日历寿命确定;②有总日历寿命指标的机件求解其总疲劳寿命;③受静载荷机件的日历寿命确定。