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辽宁工业大学 机械工程与自动化学院,锦州 121001
张晓光,男,1977年生,辽宁铁岭人,硕士,教授,硕士研究生导师;主要研究方向为CAD/CAE/CAM集成技术;E-mail:lgdjxjz2020@163.com。
郝鑫瑞,男,1997年生,辽宁沈阳人,硕士研究生;主要研究方向为CAD/CAE/CAM集成技术;E-mail:1144530750@qq.com。
收稿日期:2023-11-10,
修回日期:2023-12-21,
纸质出版日期:2025-07-15
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张晓光,郝鑫瑞,韩绍年. 疲劳损伤诱发的碟形弹簧刚度退化分析[J]. 机械强度,2025,47(7):49-55.
ZHANG Xiaoguang,HAO Xinrui,HAN Shaonian. Analysis of disc spring stiffness degradation induced by fatigue damage[J]. Journal of Mechanical Strength,2025,47(7):49-55.
张晓光,郝鑫瑞,韩绍年. 疲劳损伤诱发的碟形弹簧刚度退化分析[J]. 机械强度,2025,47(7):49-55. DOI: 10.16579/j.issn.1001.9669.2025.07.006.
ZHANG Xiaoguang,HAO Xinrui,HAN Shaonian. Analysis of disc spring stiffness degradation induced by fatigue damage[J]. Journal of Mechanical Strength,2025,47(7):49-55. DOI: 10.16579/j.issn.1001.9669.2025.07.006.
碟形弹簧在使用过程中会承受循环位移载荷,造成疲劳损伤,导致碟形弹簧发生刚度退化,当累积到足以导致断裂的程度,对补偿功能造成不可逆的影响。因此,研究了在循环载荷下,碟形弹簧材料内部发生疲劳损伤及其结构的刚度退化情况。在传统的刚度退化模型的基础上考虑碟形弹簧几何非线性的特点以及循环载荷的作用,建立一个适用于碟形弹簧的刚度退化模型。分析了在循环载荷作用后碟形弹簧的结构体系受力性能的变化情况以及刚度退化规律,运用有限元软件对模型进行了验证。基于试验数据对模型进行修正,得到可用于计算碟形弹簧刚度退化程度的模型。该模型可以预测碟形弹簧结构在服役过程中的变形及结构疲劳损伤、性能退化程度判定,可为碟形弹簧的应用提供一定的依据和参考。
The disc spring will bear the cyclic displacement load during using
resulting in the fatigue damage and the stiffness degradation of the disc spring
which causes irreversible influence on the compensation function when accumulated sufficiently to cause fracture. Therefore
the disc spring material which occurred internal fatigue and structural stiffness degradation was studied under the cyclic load. By considering characteristics of the geometric nonlinearity and the action of the cyclic load
based on the traditional stiffness degradation model
a stiffness degradation model fitting for disc springs was established.The force change of the structural system
the law of stiffness degradation of the disc spring
and the stiffness degradation model were analyzed and verified with the finite element software. The model was modified based on the test data to obtain the model that can be used to calculate the degradation of the disc spring stiffness. This model can predict the deformation of disc springs’ structure in service
and determine the fatigue damage and performance degradation degree
which can provide some basis and reference for the application of disc springs.
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