Level Set Topology Optimization of Load Carrying Heat Dissipation Devices

Kambampati, Sandilya ; Gray, Justin S ; Kim, H Alicia

关键词: ALGORITHMS;    CONDUCTIVE HEAT TRANSFER;    DESIGN OPTIMIZATION;    DISSIPATION;    ELECTRIC BATTERIES;    FAILURE ANALYSIS;    FINITE ELEMENT METHOD;    HEAT FLUX;    HIGH TEMPERATURE;    LITHIUM;    LOADS (FORCES);    METAL IONS;    TEMPERATURE DISTRIBUTION;    TEMPERATURE EFFECTS;    THERMAL STRESSES;    THERMOELASTICITY;    TOPOLOGY;   

RP-ID  :  GRC-E-DAA-TN68895

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

In this paper, we introduce a level set method topology optimization method of structures subjected to coupled mechanical and thermal loads. Different examples considering compliance minimization and stress minimization under temperature and volume constraints, and mass minimization under stress and temperature constraints, are presented. The p-norm of the stress field and temperature field is used to approximate the maximum stress and temperature, respectively. The developed method is applied in the design of an L-bracket and a battery package. The results show that designs obtained by ignoring the thermal or structural constraints can result in high values of temperature or stress, respectively.