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Edward G. Keating 《Defence and Peace Economics》2013,24(2):191-223
This paper models and simulates a government‐contractor principal‐agent weapon system repair model. Insights are derived as to how government repair contracts should be constructed so as to induce optimal contractor behavior. The paper's general conclusion is that the best contracting approach combines a lump‐sum payment that does not vary with the number of units repaired, expensive item cost‐sharing, and a contractor‐provided availability guarantee. Provided there is intercontractor competition, this type of contract performs well even if the government is poorly informed about weapon system break patterns or repair costs. 相似文献
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《防务技术》2022,18(11):2052-2064
The damage effects of fluid-filled submunition payload impacted by the kinetic kill vehicle (KKV) are investigated by simulations and ground-based experiments. Numerical simulations showed that the damage level and number of submunitions were significantly influenced by the diameter of the KKV compared with its length. Based on that, a high velocity penetrator formed by shaped charge explosion was used to simulate the direct hit experiment of a KKV impacting submunition payload. Experimental results demonstrated that the damage modes of submunitions mainly included the slight damage, perforation and total smash, showing a good agreement with the simulations. To understand the multiple damage modes of submunitions, the damage behavior of the submunitions in direct hit process were analyzed based on the AUTODYN-3D code. Numerical results presented that increased KKV diameter can increase the crater diameter and expand the damage volume, which will achieve a higher direct hit lethality. Further analysis indicated that there were other mechanical behaviors can enhance the damage to submunitions not lying in the KKV flight path, such as secondary debris kill, neighboring submunitions collision with each other, and high-speed fluid injection effect. 相似文献
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用于要地末端防御的现代近程防空导弹的需求分析 总被引:3,自引:0,他引:3
直接打击空袭武器的近程末端防御是现代战术防空体系的一个重要组成部分。用于末端防御的现代近程防空导弹必须具有高的火力密度,能够有效击毁空袭武器,为此必须采用现代精确制导控制技术,它是一种全新的防空导弹。 相似文献
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王卫国 《海军工程大学学报》1990,(3)
海上实兵环境下的舰炮对抗攻击训练,因发射实弹易造成误伤,一直被认为是难以实现的训练科目。而我系研制的舰炮对抗攻击模拟仿真系统,有效地将多种技术综合应用,创造了接近实战的训练环境;通过采用模拟交战的方法,较好地解决了上述问题。本文就该系统的组成结构、仿真过程与技术特点等问题进行了全面的介绍,并对模拟仿真训练系统的进一步发展提出了看法。 相似文献
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提出了一种发电机气隙磁场非正弦分布时整流系统的近似电路模型和仿真方法;分析了气隙磁场非正弦分布对系统交直流电压和电流波形的影响.仿真结果表明,合理控制气隙磁场谐波含量有利于提高轻负载下整流电压的品质.由此提出:带整流负载的多相同步发电机采用气隙磁场非正弦分布的转子结构和集中整距的定子绕组(即所谓方波电机)是合理的 相似文献