Open AccessMechanical simulation optimization of RTG prototype
Author(s) -
Chunyu Wu,
Yang Liu,
Shuaifei Yang,
Yang Li,
Shuyang Wang,
Ke Gao,
Shichao Liu,
Yang Jin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1865/3/032079
Subject(s) - thermoelectric generator , thermocouple , thermoelectric effect , vibration , structural engineering , materials science , displacement (psychology) , electricity , stiffness , computer science , mechanical engineering , composite material , engineering , electrical engineering , physics , acoustics , psychology , psychotherapist , thermodynamics
The thermocouple energy converter in the radioisotope thermoelectric genera tor (RTG) requires a long time work under high temperature and large temperature diff erence, and needs to withstand the harsh service conditions of heat, force, electricity an d other external fields during the launch process. In order to understand the dynamic p urchase response and dynamic strain of various parts of the structure when the thermoe lectric module is under dynamic load under different conditions, this paper uses softwa re to simulate the vibration and shock scenarios of the thermoelectric module in the RT G prototype. According to the existing conditions, a three-direction impact spectrum a nalysis was carried out. It was found that in the three-direction random vibration, from the root mean square stress result, the risk of damage is small; while during the impac t, the shell and the thermoelectric The displacement in the in-plane direction between t he module furnishing surfaces will cause the thermoelectric material in the thermoelect ric module to produce a large shear stress, which will cause the risk of shear damage to the structure. The imitation result provides a reference for the further optimization des ign of RTG prototype.