Monitoring method for strength and looseness prevention of threaded connection structure

Abstract

The invention relates to a monitoring and processing method for thread structure strength and looseness prevention, belongs to the technical field of aerospace thread connection, and solves the problems of large workload and high difficulty in a thread connection structure strength and looseness prevention monitoring and processing process in the prior art. The method comprises the following steps: 1, determining size parameters of a threaded connection structure, and performing parametric modeling; 2, dividing hexahedron grids of the threaded connection structure; 3, determining an assembly relation, and assembling the threaded connection structure; 4, analyzing the strength of the threaded connection structure, and adjusting a nut and a screw; 5, carrying out anti-loosening analysis on the threaded connection structure, and adjusting the threaded connection structure. According to the monitoring and processing method, the high-precision threaded connection structure grid model containing the thread details is generated through hexahedral grid division of the threaded connection structure and used for threaded connection strength and anti-loosening monitoring and processing, and the monitoring and processing precision is improved.

Description

technical field [0001] The invention relates to the technical field of threaded connections in aerospace, in particular to a method for monitoring the structural strength and anti-loosening of threaded connections. Background technique [0002] Compared with traditional industries, mechanical equipment applied to the aerospace field must meet high-strength and high-precision requirements, especially the threaded connection structure used in the equipment must be guaranteed to have high reliability to meet the requirements of UAVs. , spacecraft and other aerospace equipment to meet the requirements of harsh and complex environments. In engineering practice, due to vibration changes of external loads, high-temperature creep of materials, etc., the friction force will decrease. The connection will loosen and lead to failure, so anti-loosening treatment must be carried out; due to the effect of stress, the threaded connection will also undergo strength failure, and strength fai...

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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a method for monitoring the strength and anti-loosening of threaded connections used in aerospace to solve the problem of heavy workload in the process of monitoring the structural strength and anti-loosening of threaded connections in the prior art. , difficult problems

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