目的　对浮动技术在大口径高射机枪上的应用进行研究， 并对浮动机参数进行设计． 方法　采用单目标优化的方法． 结果　通过优化设计， 得到了一组满足条件的浮动机结构参数， 并分析了该组参数下机枪的性能． 结论　浮动技术应用于大口径机枪是完全适合的， 它不仅可以大幅度地减小后坐力， 而且通过参数的合理匹配， 具有良好的浮动稳定性， 对提高射击精度是有利的 Aim To study the application of floating technology to large caliber antiaircraft machine gun, and to design the parameters of the floating machine. Methods using single-objective optimization method. Results By optimizing the design, a set of floating machine structural parameters satisfying the conditions were obtained, and the performance of the machine gun under the set of parameters was analyzed. Conclusion Floating technology is suitable for large-caliber machine gun. It not only can greatly reduce the recoil force, but also has good floating stability through the reasonable matching of parameters, which is beneficial to improve shooting accuracy