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首页> 外文期刊>IEEE sensors journal >Research on the Chamber Pressure Test Method of Small Caliber Weapons Based on a Double-Layer and Double-Grid Structure Strain Tester
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Research on the Chamber Pressure Test Method of Small Caliber Weapons Based on a Double-Layer and Double-Grid Structure Strain Tester

机译：基于双层双电网结构应变测试仪的小口径武器腔室压力试验方法研究

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摘要

Chamber pressure test remains to be a difficult problem in the field of internal ballistics. Therefore, a new chamber pressure test method based on a double-layer and double-grid structure strain tester was proposed to test the chamber pressure for the small caliber weapons. The method has a simple design structure compared with the traditional chamber pressure test method. This method can also obtain the entire pressure test curve without destroying the barrel structure. Furthermore, the novel method has a high test accuracy with low cost, high reliability with long life, and good electromagnetic compatibility (EMC). The core idea was to test the strain on the outer wall of the barrel through the double-layer and double-grid strain tester, thereby calculating the chamber pressure according to thick-walled cylinder theory. First, the mechanism of this new test method was analyzed, and the fourth-order Runge-Kutta algorithm was used to establish a simulation model of the chamber pressure. Second, the sensitivity of the strain tester was obtained by calibrating the strain test system. The test method was compared with the lead wire electronic manometer test and the simulation modeling methods. The test curve was consistent with the lead wire electronic manometer test and the simulation curves, verifying the test accuracy and feasibility of the method. Finally, the simulations and experiments validated that the new test method had good EMC.
机译：室压力试验仍然是内部弹道液领域的难题。因此，提出了一种基于双层和双电网结构应变测试仪的新腔室压力测试方法，以测试小口径武器的腔室压力。该方法具有简单的设计结构与传统的腔室压力测试方法相比。该方法还可以获得整个压力测试曲线而不破坏桶结构。此外，新型方法具有高的测试精度，具有低成本，高可靠性，寿命长，电磁兼容性良好（EMC）。核心思想是通过双层和双电网应变测试仪测试桶外壁上的应变，从而根据厚壁圆柱理论计算腔室压力。首先，分析了这种新测试方法的机制，并使用了四阶速金-Kutta算法来建立腔室压力的仿真模型。其次，通过校准应变测试系统来获得应变测试仪的敏感性。将测试方法与引线电子压力计测试和仿真建模方法进行比较。测试曲线与引线电子压力计测试和仿真曲线一致，验证测试精度和方法的可行性。最后，仿真和实验验证了新的测试方法具有良好的EMC。

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