Structural topological optimization with dynamic fatigue constraints subject to dynamic random loads

• Published in: Engineering structures Vol. 205; p. 110089
• Main Authors: Zhao, Lei, Xu, Bin, Han, Yongsheng, Xue, Jingdan, Rong, Jianhua
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 15.02.2020; Elsevier BV
• Subjects: Agglomeration; Aggregation functions; Algorithms; Constraint-limit-variant method; Crossland’s criterion; Dual theory; Dynamic fatigue failure constraints; Dynamic loads; Fatigue failure; Material properties; Objective function; Optimization; Random loads; Sensitivity; Stress concentration; Structural design; Structural engineering; Structural weight; Topology; Topology optimization; Variation; Vibrations; Dynamic fatigue failure constraints; Topology optimization; Aggregation functions; Constraint-limit-variant method; Crossland’s criterion; Dual theory
• ISSN: 0141-0296; 1873-7323
• DOI: 10.1016/j.engstruct.2019.110089

•A method for the optimization with dynamic fatigue constraints is proposed.•The optimization model of lightweight with fatigue constraints is formulated.•A constraint-limit-variant method is proposed to solve the problem.•The sensitivity of the constraint is derived to form the approximate function...