A vibration durability simulation test tool and test method for installation of a formed fastener

By designing and implementing vibration durability simulation test fixtures and composite test methods for installed shaped fasteners, the problem of lack of standardized testing in existing technologies has been solved. This enables high-fidelity simulation and scientific research of installed shaped fasteners, improving test accuracy and adaptability.

CN120890640BActive Publication Date: 2026-09-11CHENGDU AIRCRAFT INDUSTRY GROUP
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Patent Information

Application Number
CN202511179968.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2026-09-11
Estimated Expiration
2045-08-22

AI Technical Summary

Technical Problem

Existing technologies lack vibration durability simulation test methods for assembled fasteners, especially standardized test techniques applicable to fasteners such as high-performance blind rivets in large and complex assemblies such as aerospace.

Method used

A vibration durability simulation test fixture for mounting shaped fasteners was designed, including a vibration support platform, a sample mounting plate and a pressure plate. A modular sample mounting plate and a special fixture system were adopted, combined with a composite test method that combines frequency sweep and random vibration, to achieve high-fidelity simulation of fasteners under complex working conditions.

Benefits of technology

This research enabled the scientific study and comparative verification of the vibration performance of installed and formed fasteners, filling the gap in systematic testing technology in this field, improving the accuracy and adaptability of the tests, and providing a scientific basis for product reliability assessment.

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Abstract

The application discloses a vibration durability simulation test tool for installation forming fasteners and a test method, relates to the technical field of durability performance detection of fasteners, and the tool comprises a vibration support table, a sample mounting plate and a pressing plate. The tool is accurately designed to simulate the stress state and the use environment of the fasteners under actual installation working conditions, and a standardized test procedure is adopted to test and compare the vibration durability performances of various installation forming fasteners under simulated complex service environments, especially under the multi-load coupling working conditions in large equipment. The scheme can realize high-fidelity simulation of the performance of the fasteners under real working conditions, and provides a scientific basis for product reliability evaluation and improvement.
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