CAJ | 학술논문

抽筒子是火炮进行抽筒的关键部件，其可靠性直接影响火炮的持续战斗力。为降低抽筒子的应力峰值，利用ABAQUS软件的优化模块，对凸轮式抽筒子进行拓扑优化和形状优化，并将优化后的抽筒子导入ABAQUS中进行瞬态动力学仿真，对比优化前后抽筒子工作情况。结果表明，经过两轮优化后，抽筒子最大应力下降了31.2%，变形增大了11.2%，质量减小了13.5%，最大抽筒速度下降了3.13%。优化后模型的抽筒特性改变很小，抽筒子应力均下降到安全范围内，其工作可靠性有所提高，抽筒子的优化分析对类似结构设计有一定的参考价值。
추통자시화포진행추통적관건부건，기가고성직접영향화포적지속전두력。위강저추통자적응력봉치，이용ABAQUS연건적우화모괴，대철륜식추통자진행탁복우화화형상우화，병장우화후적추통자도입ABAQUS중진행순태동역학방진，대비우화전후추통자공작정황。결과표명，경과량륜우화후，추통자최대응력하강료31.2%，변형증대료11.2%，질량감소료13.5%，최대추통속도하강료3.13%。우화후모형적추통특성개변흔소，추통자응력균하강도안전범위내，기공작가고성유소제고，추통자적우화분석대유사결구설계유일정적삼고개치。
Breechblock extractors are the very important parts during the process of gun extrac-ting,its reliability has directly influence on the combat effectiveness of the gun.To reduce the peak stress of extractors,its topology and shape optimizations were carried out by use of the optimization module of ABAQUS software.For the sake of the validation and the optimization, the extractor was guided into the dynamics model.After two types of optimization,the peak stress of the extractor decreases by 3 1.2%,its deformation increases by 1 1.2%,its mass is re-duced by 1 3.5% and the maximum extraction speed decreases by 3.1 3%.As a result,the opti-mization improves the reliability of extractors and it has little effect on the extraction process. This research can provide the valuable references for the similar structural design.