A New Efficient Approach to Simulate Material Damping in Metals by Modeling Thermoelastic Coupling.

ABSTRACT: The realistic prediction of material damping is crucial in the design and dynamic simulation of many components in mechanical engineering. Material damping in metals occurs mainly due to the thermoelastic effect. This paper presents a new approach for implementing thermoelastic damping into finite element simulations, which provides an alternative to computationally intensive, fully coupled thermoelastic simulations. A significantly better agreement between simulation results and experimental data was achieved, when compared with the empirical damping values found in the literature. The method is based on the calculation of the generated heat within a vibration cycle. The temperature distribution is determined by the mechanical eigenmodes and the energy converted into heat, and thus dissip

SUBMITTER: Zacharias C 

PROVIDER: S-EPMC8910910 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature