CN-115711906-B - Ignition and recoil testing system and method for energetic material

CN115711906BCN 115711906 BCN115711906 BCN 115711906BCN-115711906-B

Abstract

The invention discloses an ignition and recoil testing system and method for energetic materials. The system comprises an energy release testing device, an energy release ignition device, a weight acquisition device, a recoil acquisition device and a temperature acquisition device, wherein the energy release testing device is used for heating the energy release, the energy release testing device is used for exciting an energy-containing material to be tested which is placed at one end of the energy release testing device in advance under the heating action of the heating ignition device to enable the energy release material to release energy and jet out a product to the other side to generate recoil force, the weight acquisition device is used for acquiring and recording a time-dependent change curve of the mass of the energy-containing material to be tested in the heating and energy release process of the energy-containing material, the recoil acquisition device is arranged at one side of the energy release testing device and is used for acquiring and recording a time-dependent change curve of the recoil force generated by the energy-containing material to be tested in the heating and energy release process of the energy-containing material. The invention is convenient for measuring the thrust generated by the energetic material and convenient for operation.

Inventors

ZHOU JINGYUAN
Lei Siyang
RAN XIANWEN
TANG WENHUI
ZHANG KUN

Assignees

中国人民解放军国防科技大学

Dates

Publication Date: 20260512
Application Date: 20221031

Claims (6)

1. The ignition and recoil testing system for the energetic material is characterized by comprising an energy release testing device, a heating ignition device, a recoil acquisition device, a weight acquisition device and a temperature acquisition device; the heating ignition device is used for heating the energy release testing device; The energy release testing device is arranged on the weight acquisition device and is used for exciting an energy-containing material to be tested which is pre-placed at one end of the energy release testing device under the heating action of the heating ignition device so as to release energy and jet out a product to one side so as to generate recoil force to the other side, and the weight acquisition device is used for acquiring and recording a change curve of the mass of the energy-containing material to be tested along with time in the heating and energy release processes of the energy-containing material; The recoil force acquisition device is arranged on one side of the energy release testing device and is used for acquiring and recording a recoil force change curve of the energy-containing material to be tested along with time in the heating and energy release processes of the energy-containing material; The temperature acquisition device is arranged at one side of the energy release testing device and is used for acquiring and recording a change curve of the temperature of the energy-containing material to be tested along with time in the heating and energy release processes of the energy-containing material; The energy release testing device comprises an energy-containing material filling piece, wherein the energy-containing material filling piece is provided with an energy-containing material filling cavity for filling energy-containing material, and an opening of the energy-containing material filling cavity is arranged at one end of the energy-containing material filling piece; The energy-containing material filling piece is arranged on the weight acquisition device through a limiting support piece, the energy-containing material filling piece moves on the limiting support piece along the axial direction of the energy-containing material filling piece, and a connecting part piece used for limiting and connecting the energy-containing material filling piece is a sliding sleeve, a sliding ring, a sliding rail or a sliding groove; The energy-containing material filling piece is a crucible with an opening at one end, the inner layer of the crucible is a material capable of being heated by electromagnetic induction, the outer layer of the crucible is a heat insulation layer made of ceramics, the limiting support piece is a crucible limiting support, the upper part of the crucible limiting support is a sliding sleeve, the crucible is slidably arranged in the sliding sleeve along the axial direction of the crucible, and the sliding sleeve is in sliding contact with the crucible by adopting a direct contact type or a bearing; The recoil force acquisition device comprises a pressure sensor, the pressure sensor is kept in contact with one end of the energetic material filling piece, which is not provided with an opening, and is fixedly installed relative to the energy release testing device, and the recoil force acquisition device acquires generated recoil force data through the pressure sensor.
2. The system of claim 1, wherein the weight acquisition device comprises a limiting mechanism, a weight sensing unit, and a weight plate mounted on the weight sensing unit, the energy release testing device being disposed on the weight plate, the limiting mechanism being disposed on a periphery of the weight plate to limit horizontal movement, upward vertical movement, and overturning movement of the weight plate.
3. The system of claim 2, wherein the limiting mechanism comprises limiting plates and limiting bolts, wherein limiting plates are disposed on opposite sides of the weighing plate, and each limiting plate is provided with a limiting bolt penetrating through the limiting plate.
4. The system of claim 1, wherein the heating and igniting device comprises a heating controller and an electromagnetic induction heating coil which are arranged in a matched manner, and the electromagnetic induction heating coil heats the energy release testing device in a non-contact manner to excite the energy release material to be tested to release energy.
5. The energetic material ignition and recoil testing system of claim 1, wherein the temperature acquisition device is a non-contact infrared temperature sensor.
6. A method of an ignition and recoil testing system for an energetic material according to any of claims 1-5, comprising the steps of: S1, assembling the energy release testing device, the heating ignition device, the recoil force acquisition device, the weight acquisition device and the temperature acquisition device; s2, placing the energy-containing material to be tested with preset quality into an energy-containing material filling cavity of the energy release testing device; S3, the heating device is combined with the temperature acquisition device to heat the energy release testing device according to a preset heating rate until the energy release testing device is excited by the energy-containing material to be tested and releases energy, and a recoil force is generated and applied to the energy release testing device and acts on the recoil force acquisition device; S4, quantitatively analyzing the energy release capacity of the energetic material through the change curve obtained in the step S3.

Description

Ignition and recoil testing system and method for energetic material Technical Field The invention relates to the technical field of ignition and mechanical property research of energetic materials, in particular to an ignition and recoil force testing system and method of an energetic material. Background In the research of energetic materials, the reaction characteristics are often the focus of the research. The methods for exciting energetic materials are various, but the most common is thermal excitation, and the heating methods such as thermal resistance or chemical heating are generally adopted by the related test devices at present, so that the heating rate is limited. Meanwhile, if the generated gas and the released energy are guided in the process of releasing the energy, a large amount of recoil thrust can be generated by the content material, and the content material plays an important role in the aerospace field when being applied to the flight and the underwater vehicles. The system structure of the existing thrust testing device is complex, the size is relatively large, and a measurement scheme for a small-size thrust system is lacked. In order to reasonably utilize the recoil force generated by the energetic material, a relatively simple method is needed to measure the reaction thrust of the energetic material in order to quantitatively analyze the energetic material. Disclosure of Invention The invention aims to provide an ignition and recoil testing system and method for an energetic material, which overcome the defects in the prior art. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: An ignition and recoil force testing system of an energetic material comprises an energy release testing device, a heating ignition device, a recoil force acquisition device, a weight acquisition device and a temperature acquisition device; the heating ignition device is used for heating the energy release testing device; The energy release testing device is arranged on the weight acquisition device and is used for exciting an energy-containing material to be tested which is pre-placed at one end of the energy release testing device under the heating action of the heating ignition device so as to release energy and jet out a product to one side so as to generate recoil force to the other side, and the weight acquisition device is used for acquiring and recording a change curve of the mass of the energy-containing material to be tested along with time in the heating and energy release processes of the energy-containing material; The recoil force acquisition device is arranged on one side of the energy release testing device and is used for acquiring and recording a recoil force change curve of the energy-containing material to be tested along with time in the heating and energy release processes of the energy-containing material; The temperature acquisition device is arranged on one side of the energy release testing device and is used for acquiring and recording the change curve of the temperature of the energy-containing material to be tested along with time in the heating and energy release processes of the energy-containing material. Further, the energy release testing device comprises an energy-containing material filling piece, wherein the energy-containing material filling piece is provided with an energy-containing material filling cavity used for filling energy-containing materials, an opening of the energy-containing material filling cavity is arranged at one end of the energy-containing material filling piece, heat insulation materials are arranged outside the filling piece, when a recoil force generated by energy release of the energy-containing materials to be tested does work on the energy-containing material filling piece, the energy-containing material filling piece can move towards the recoil force acquisition device along the axial direction of the energy-containing material filling piece and apply the recoil force to the recoil force acquisition device, and the recoil force acquisition device acquires the applied recoil force data. Further, the energy-containing material filling piece is arranged on the weight acquisition device through a limiting support piece, the energy-containing material filling piece moves on the limiting support piece along the axial direction of the energy-containing material filling piece, and a connecting part piece for limiting and connecting the energy-containing material filling piece is a sliding sleeve, a sliding ring, a sliding rail or a sliding groove. Further, the energy-containing material filling piece is a crucible with an opening at one end, the inner layer of the crucible is a material which can be heated by electromagnetic induction, the outer layer of the crucible is a heat insulation layer made of ceramics, the limiting support piece is a limiting support of the crucible, the upper part of the limit