This study investigates the position deviation in the assembly of iron core dies for new energy electric motors due to interference fit. A mapping model is established using a back propagation neural network (BPNN) to correlate the ideal die axial hole interference fit clearance with position deviation. Utilizing the joint simulation of Abaqus and Isight, a comprehensive set of geometric models with varying interference clearances is developed, generating data on center deviations for different sizes and clearances. A BPNN is trained with the template hole diameter and insert outer diameter as inputs, and the x-direction and y-direction center deviations of the insert cylindrical axis as outputs. This model is then applied to predict the deformation effects of the interference fit on assembly. The results show that this method can accurately and efficiently predict the deformation in ideal axial hole interference fit assemblies.
The occurrence of forest fires often causes serious harm to people’s livelihood and economy. However, the current monitoring of forest fires has problems such as poor real-time interaction of forest fire-related information and low degree of data visualization. The front-end development of forest fires using relational databases MySQL and HTML5 is designed. The monitoring system processes and visualizes the fire point information sent by the sensors on the satellite in real time, realizes the real-time monitoring and rapid response of forest fires, and avoids the occurrence of large-scale fires to a certain extent. This paper studies the development method of forest fire monitoring system from the aspects of web front-end architecture and system architecture. The web front-end architecture describes the technical route of forest fire detection system implementation, and the system architecture describes the overall frame structure and design concept of forest fire detection system. Finally, the feasibility and applicability of the forest fire monitoring system are verified by the user interface function description.
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