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Multi-physical-quantity measurement system based on light-gas gun loading and experiment method

A multi-physical quantity, measurement system technology, applied in the field of mechanical experiments and digital measurement, can solve the problems of limitations, not considering the impact velocity of the target at the same time, and achieve the effect of a wide range of experiments

Active Publication Date: 2021-10-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution mainly focuses on the measurement of the impact force, which is relatively limited. It does not simultaneously consider the impact velocity of the target, the residual velocity of the target, the strain of the target, the maximum elastic deformation of the target, the maximum plastic deformation of the target, the overall displacement field of the target, and the target deformation. Physical quantities such as the overall strain field of the plate and the impact trajectory of the target

Method used

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  • Multi-physical-quantity measurement system based on light-gas gun loading and experiment method
  • Multi-physical-quantity measurement system based on light-gas gun loading and experiment method
  • Multi-physical-quantity measurement system based on light-gas gun loading and experiment method

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specific Embodiment approach 1

[0026] Specific implementation mode one: as figure 1 , figure 2 and Figure 4 As shown, this embodiment discloses a multi-physical quantity measurement system based on light gas cannon loading, including a two-point high-frequency laser velocimeter 3, an adjustable compensation light source 4, a dynamic strain gauge 5, a transient impact sensor 6, a laser Focusing device 7, high-frequency laser displacement meter 8, impact force-measurable sliding rod fixture 9, color smoke generator 10 and at least two high-speed cameras 11;

[0027] The light gas gun 1 is equipped with a bullet holder-target bomb assembly 2, and the two-point high-frequency laser velocimeter 3 is arranged between the light gas gun 1 and the sliding bar type clamp 9 with measurable impact force. The light gas gun 1 The axis coincides with the axis of the incident hole 9-2-1 of the measurable impact force slide bar fixture 9 and intersects with the preset impact point of the target plate 9-12. The adjustabl...

specific Embodiment approach 2

[0028] Specific implementation mode two: as figure 1 As shown, this embodiment is a further description of specific embodiment 1. The number of adjustable compensation light sources 4 is four, and the four adjustable compensation light sources 4 are erected on the target of the measurable impact force slide bar fixture 9. At the four corners of the warehouse.

specific Embodiment approach 3

[0029] Specific implementation mode three: as Figure 1-Figure 4 As shown, this embodiment is a further description of specific embodiment 1. The measurable impact force slide bar clamp 9 includes an incident plate 9-1, a separation flange 9-2, a chute top plate 9-3, at least A lower connecting slider 9-4, target cabin force frame 9-5, chute bottom plate 9-6, three protective plates 9-7, at least one slide bar with groove 9-8, at least one sensor top block 9- 9. At least two impact sensors 9-10, at least one upper connecting slider 9-11, target plate fixture one 9-13 and target plate fixture two 9-14;

[0030]The incident plate 9-1 (through a plurality of bolts) is fixed on one side of the target cabin bearing frame 9-5 (the incident plate 9-1 can prevent the high residual velocity target bomb from bouncing back to damage the equipment and injure the experimenter), so The chute bottom plate 9-6 (by a plurality of bolts) is fixedly connected with the bottom of the target cabin...

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Abstract

The invention discloses a multi-physical-quantity measurement system based on light-gas gun loading and an experiment method, and belongs to the technical field of mechanical experiments and digital measurement. The two-point high-frequency laser velocimeter is arranged between the light-gas gun and the slide bar type clamp capable of measuring the impact force, the adjustable compensation light source is erected near the slide bar type clamp capable of measuring the impact force, the high-strain-rate strain gauge is pasted at a preset key point of the target plate and is electrically connected with the dynamic strain gauge, the transient impact force sensor is installed in the target bin, the transient impact force sensor is connected with the high-speed data collector through a signal line, the high-speed data collector is connected with the integrated signal processor through a data line, the laser focusing device is installed on the side, away from the light-gas gun, of the target bin, and the high-frequency laser displacement meter is installed on the side, away from the light-gas gun, of the target bin, the colored smoke generator is communicated with the target bin through a smoke conveying pipeline, and high-speed cameras are installed on the side, away from the light-gas gun, of the target bin and the left side or the right side. The method is used for multi-physical-quantity measurement.

Description

technical field [0001] The invention belongs to the technical field of mechanical experiments and digital measurement, and relates to a multi-physical quantity measurement system and an experimental method, in particular to a multi-physical quantity measurement system and an experimental method in the process of light-weight warhead impact loading based on light gas cannon loading. Background technique [0002] In laboratory experiments and practical engineering applications, there are often impact loading conditions in which the target bomb impacts the target plate, which is essentially a complex impact dynamics problem. For the problem of impact dynamics, both theory and practice will pay attention to the impact velocity of the target, the residual velocity of the target, the transient impact force, the strain of the key points of the target, the maximum elastic deformation of the target, the maximum plastic deformation of the target, and the overall displacement field of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G01D21/02
CPCG01L5/0052G01D21/02
Inventor 果立成孙世伟于尚洋郝留磊孙新杨赵九州李志兴王晓宇
Owner HARBIN INST OF TECH
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