Driver vibration transmissibility testing method based on six-degree-of-freedom vibration table

Through a test system based on a six-degree of freedom vibration table, combined with a vibration transmission module and a human body dynamic transmission model, the process of vibration transmission from the seat to the human body's hands is quantitatively analyzed, which solves the limitations of the existing technology in vibration dimensions, dynamic controllability and experimental scene simulation, and realizes the impact analysis on human body's operating performance, providing support for cockpit design optimization.

CN119827189APending Publication Date: 2025-04-15CIVIL AVIATION UNIV OF CHINA
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Patent Information

Application Number
CN202411985071.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

The existing technology has limitations in vibration dimensions, dynamic controllability and experimental scene simulation, and it is difficult to fully control and simulate the complex interactive characteristics of vibration direction, amplitude, frequency and vibration environment, and rarely explore the impact of vibration environment on human operating performance.

Method used

The testing system based on the six-degree of freedom vibration table is adopted, and the vibration table is controlled to generate vibrations in specific directions, amplitudes and frequency through external motion control software. Combined with the vibration transmission module and the human body dynamics transmission model, the process of vibration transmission from the seat to the human body's hands is quantitatively analyzed, and the vibration direction, amplitudes, frequency and human body posture are changed to analyze the vibration response under different conditions.

Benefits of technology

Vibration tests of the pilot's human body in multiple directions and multiple postures are realized, the interactive characteristics of the human body and the vibration environment are quantified, and the vibration environment under different flight conditions is simulated, providing support for the study of human dynamic characteristics and cockpit design optimization.

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Abstract

The invention discloses a method for testing the vibration transmissibility of a driver based on a six-degree-of-freedom vibration test platform, and the method comprises the steps: generating the six-degree-of-freedom vibration of vertical, longitudinal, transverse, pitching, rolling and yawing through a vibration platform, and collecting the vibration signals of a seat of a cockpit and the hands of a pilot; fourier transform is carried out on the signals to obtain frequency domain vibration characteristics. Human body vibration response characteristics in different postures and vibration directions are analyzed by calculating the vibration transmissibility between the seat and the hands. The method can be used for researching the influence of the vibration environment of the cockpit on the vibration transmission characteristics of the human body, can also be used for exploring the influence of the vibration environment on the operation performance of the human body, and provides support for cockpit design and man-machine interaction optimization.
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