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Damping sine wave applying device for mechanical environment test

A technology of mechanical environment and application device, which is applied in the direction of measurement device, application of repeated force/pulsation force to test material strength, vibration test, etc., to achieve the effect of easy implementation, reduced test cost, and large acceleration value

Pending Publication Date: 2022-08-05
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a damped sine wave application device for mechanical environmental tests to solve at least one problem in the prior art

Method used

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  • Damping sine wave applying device for mechanical environment test
  • Damping sine wave applying device for mechanical environment test

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Embodiment Construction

[0029] In order to make the implementation purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present ap...

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Abstract

The invention belongs to the field of mechanical environment tests, and particularly relates to a damping sine wave applying device for a mechanical environment test. Comprising an elastic element (1), a damping element (2), a mounting frame (3), a release mechanism (7) and a timer (6). The first end of the elastic element (1) is fixed, and a stop mechanism (8) is arranged on the elastic element (1); the damping element (2) is arranged on the elastic element (1) and can gradually attenuate the vibration of the elastic element (1); the top end of the mounting rack (3) is connected with the second end of the elastic element (1), and a test piece (4) and a weight (5) are mounted on the mounting rack (3); the releasing mechanism (7) is connected with the bottom end of the mounting frame (3); and the timer (6) is respectively connected with the releasing mechanism (7) and the stopping mechanism (8). According to the invention, the test cost can be greatly reduced, and a larger acceleration value can be realized at low frequency.

Description

technical field [0001] The application belongs to the field of mechanical environmental testing, and particularly relates to a damped sine wave applying device for mechanical environmental testing. Background technique [0002] According to the requirements of the shock environment test, if there is no suitable field measurement data, the transient sine can be used to simulate each ejection or take-off process. At this time, the time history is simplified to be simulated by a transient sine with a certain duration, the waveform is a damped sine wave, and the frequency is determined by the structural analysis of the given aircraft and the frequency of the first order mode, and the waveform damping (quality factor) For Q=20, the amplitude is determined by the structural analysis of the given aircraft, the frequency of the first mode, and the position of the equipment on the mode shape of the first mode. [0003] In order to realize the above experimental conditions, the key p...

Claims

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Application Information

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IPC IPC(8): G01M7/02G01M7/08G01N3/36G01N3/02B64F5/60
CPCG01M7/02G01M7/022G01M7/08G01N3/36G01N3/02B64F5/60G01N2203/0005G01N2203/0048
Inventor 王赫喆王虎寅吴江鹏
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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