Heat transfer analysis of fast response sensor for internal combustion engine based on Coiflet wavelet finite element method

摘要

The fast response temperature sensor is an effective tool for measuring the temperature of internal combustion engine, in order to improve the performance of fast response temperature sensor, and the Coiflet wavelet finite element method is applied in analyzing the heat transfer rules of fast response temperature sensor. Firstly, the related research progress on the performance analysis of fast response and wavelet finite element method is summarized, respectively, and research significance of heat transfer of fast response sensor based on Coiflet wavelet finite element method is summarized in detail. Secondly, the basic theory of fast response sensor is studied, and the new structure of the fast response temperature sensor is analyzed. Thirdly, the Coiflet wavelet finite element model of analyzing heat transfer of fast response sensor is constructed by combing the Coiflet wavelet scale function with traditional finite element method, and the theoretical models are deduced. Finally, the heat transfer simulation of fast response temperature sensor based on Coiflet wavelet finite element method is carried out, and simulation results show that the Coiflet finite element has higher computing precision and efficiency than traditional finite element method, and the heat transfer rules of fast response temperature sensor are also obtained.