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Military helmet gravity center and rotating inertia metering equipment

A technology of moment of inertia and testing equipment, which is applied in the direction of measuring equipment, static/dynamic balance testing, machine/structural component testing, etc. It can solve complicated equipment, no public literature reports on testing equipment, and great influence of physiological factors on data. and other problems, to achieve the effect of convenient operation, improved accuracy and speed, and improved measurement accuracy

Inactive Publication Date: 2007-10-03
SOLDIER SYST RES CENT MILITARY SUPPLY EQUIP INST GENERAL LOGISTICS DEPT PLA
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AI Technical Summary

Problems solved by technology

The device is complicated, and the data is greatly affected by the physiological factors of the helmet wearer
In addition, the US military research institutes have done many researches on the comfort and stability of military helmets, but so far, there are no public literature reports on relevant test devices.
There are no similar public research literature and patent reports in China

Method used

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  • Military helmet gravity center and rotating inertia metering equipment
  • Military helmet gravity center and rotating inertia metering equipment
  • Military helmet gravity center and rotating inertia metering equipment

Examples

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Embodiment Construction

[0022] Referring to accompanying drawing 1, Fig. 3 and Fig. 4, military helmet center of gravity of the present invention and moment of inertia testing device top are provided with a torsion stand 8, and a fixed helmet box 1 is fixed on this torsion stand, and this device bottom is provided with a Base 13, this base is a rectangular base shape, is provided with base plate 24, front wall plate, rear wall plate, left wall plate 23 and right wall plate 14, and this base top is provided with butterfly plate 11, described torsion table A bending fulcrum bearing 9 is installed between the frame and the butterfly plate, three force sensors 25 are installed between the butterfly plate and the base plate, and a vibration frequency sensor 26 is installed between the torsion table frame and the base plate. A cam lifting locking mechanism 20 is arranged below the butterfly plate, and the cam lifting locking mechanism is composed of a cam ejector rod mechanism and a limit slide plate, and t...

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Abstract

The invention relates to a device to test center of gravity and moment of inertia of the military helm, it is set with a wiggly table frame which is fixed with a fixing helm box, a base is set under the fixing helm box, a butterfly board is set on the top of the base, a bending pivot bearing is installed between the wiggly table frame and the butterfly board, three force sensors are installed between the butterfly board and the basal plate, a vibrating-frequency sensor is installed between the wiggly table frame and the basal plate, a cam lift locking mechanism is set under the butterfly board and composed of cam post-rod mechanism and spacing slide board, where the force and vibrating frequency sensors are connected with the computer circuit data through transmission lines. It provides an objective and quantitative evaluation basis for stable parameters of military helm. It heightens precision and speed of measuring moment of inertia, easy to operate.

Description

technical field [0001] The invention relates to a device for testing the center of gravity and moment of inertia of a military helmet, which can quickly measure the position of the center of gravity and the moment of inertia of various types of military helmets. technical background [0002] The stability of the military helmet is an important factor affecting the wearing performance of the helmet. The evaluation of helmet stability can be divided into two methods: subjective evaluation and objective evaluation. The former mainly refers to the qualitative evaluation of the stability of the helmet based on the subjective feelings of the helmet wearer; the latter is to use a special instrument to measure the objective parameters that characterize the stability and give a quantitative evaluation. At present, the evaluation of helmet stability is mostly subjective and qualitative. It is mainly based on organization-scale try-on and questionnaire survey. The information acquisit...

Claims

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Application Information

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IPC IPC(8): G01M1/12G01M1/10
Inventor 施楣梧戴诗亮黄献聪田风梁晓冬陈晓周宏张华
Owner SOLDIER SYST RES CENT MILITARY SUPPLY EQUIP INST GENERAL LOGISTICS DEPT PLA
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