2) rod penetrator
杆式侵彻体
3) Jetting Projectile Charge
聚能杆式侵彻体
1.
Numerical Simulation of Formation Process of Jetting Projectile Charge by Flyer Initiation;
飞片起爆条件下聚能杆式侵彻体成型数值模拟
4) penetration
[英][,penɪ'treɪʃn] [美]['pɛnə'treʃən]
侵彻
1.
Numerical simulation of ballistic penetration of bulletproof laminated composite panels;
叠层靶板弹击实验及弹道侵彻机理的数值模拟研究
2.
Numerical simulation on ballistic penetration of composite case;
复合材料壳体弹道侵彻数值模拟
3.
CDM model and its application to numerical simulation on fiber-reinforced laminate under penetration;
CDM模型及在纤维增强层合材料侵彻数值模拟中的应用
5) penetrating
[英]['penɪtreɪtɪŋ] [美]['pɛnə'tretɪŋ]
侵彻
1.
Research of effective factors of measuring deceleration during penetrating;
影响测量侵彻过程减加速度因素的探索
2.
Numerical simulations on distribution of stress and strain rate in rod penetrator and armor during penetrating;
侵彻过程弹体和靶中应力应变率分布的数值计算
3.
After introducing the major algorithm and the development of numerical simulation,the dynamic finite element program LS-DYNA is used to simulate earth penetrating weapon penetrating concrete.
介绍了数值模拟的主要算法和发展趋势,并利用有限元程序LS-DANA对钻地弹侵彻混凝土进行了模拟。
6) penetrate
[英]['penɪtreɪt] [美]['pɛnə'tret]
侵彻
1.
And these large cracks result in falling of fragments from parts of the surface of penetrated hole.
6mm次口径93W穿甲弹,对603钢进行穿甲侵彻试验。
2.
Based on the penetrate-resistance capability of steel-fiber concrete,this paper presents the revisional formula in calculating penetrating depth by introducing toughness index of steel-fiber concrete and considering the influence of shape character and content of steel-fiber.
对钢纤维混凝土抗侵彻性能进行了研究,将钢纤维含量特征参数和钢纤维混凝土韧度的概念引入到侵彻深度计算公式中,在试验的基础上给出了弹体对钢纤维混凝土侵彻深度的别列赞修正计算式。
3.
For oval-headed projectile penetrate half-infinite concrete, adopting dimensional analysis, establishing the Function relation of related parameter having on dimension turns, through the experiment of oval-headed projectile (Quantity is 2.
针对卵形弹侵彻半无限厚混凝土介质,采用量纲分析的方法建立了相关参数的无量纲化的函数关系,通过质量为2。
补充资料:螺杆式无油干式机械真空泵原理及简介
螺杆式无油干式机械真空泵是利用齿轮传动同步反向旋转的相互啮合而不接触的左螺杆与右螺杆作高速转动,利用泵壳和相互啮合的螺旋将螺旋槽分隔成多个空间、形成多个级,气体在相等的各个槽内(柱形等螺距)进行传输运动,但无压缩,只有螺杆最末端的螺旋结构对气体有压缩作用。螺杆的各级间可形成压力梯度,以分散压差和提高压缩比。各部间隙和泵转速对泵的性能有很大影响。在设计螺杆各部的间隙时,要考虑膨胀、加工及装配精度和工作环境(如抽除含粉尘气体等)等。该泵与罗茨真空泵一样不设排气阀。
泵是立式结构,进气口在上方,排气口在中部,下部为电机和润滑油池。螺杆转子呈中空形,为悬臂支承结构。同步传动齿轮位于轴承支座下面。变频电机通过联轴节与主动转子连接。该泵的气体路径较短,且立式结构对排除含微尘气体较为有利。泵外壳有水冷却,泵维修也便利。
这种类型的泵如果选用适当的较简单螺杆牙型截面,则制造简单,可保证很高的加工精度,且容易动平衡。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条