查询词典 shock force

The results show that there will be slight decrease of the control efforts when the mean absolute value or the root mean square value of the optimal control force is taken as the maximum designed control force, while the maximum control force of MR damper can be decreased by 85% compared with the maximum optimal control force. The decrease in the designed control force can not only significantly increase the capability of MR dampers, but also reduce the dimension of MR dampers for pratical application in engineering.

研究表明，当设计值取最优控制力的平均绝对值或均方根值时，MR阻尼器的最大控制力比最优控制力的最大值降低了85%，而控制效果降低不多，可以满足对结构的控制要求；降低最大控制力设计值后，不但可以充分发挥MR阻尼器的出力性能，而且可以缩小MR阻尼器的设计尺寸，便于工程应用。

Based on it, the research content of this dissertation has been determined. Tuan Shan River Bridge is selected as an example and APDL is used to analyze the elastic properties. After calculating the internal force influence surface of assembly skew hollow slab bridge, the internal force-controlling section is attained; the transverse distribution of internal force is studied and the transverse distribution coefficient is parametric analyzed. Based on the results, relation formula of transverse distribution coefficient between skew and perpendicular bridges are fitted. Practical calculation method for the internal force calculation of assembly skew hollow slab bridge is offered. Some conclusions are drawn from comparing and analysing the internal force, bearing reaction and deformation of both assembly and monolithic skew slab bridges.

本文对装配式斜交空心板桥的发展现状进行了综述，从此出发，确定了本文的研究内容，以团山河大桥为工程背景，采用ANSYS 提供的参数化语言APDL，对装配式斜交空心板桥弹性特性进行全面分析，计算了装配式斜交空心板桥的内力影响面，得到内力控制截面；同时计算了内力的横向分布影响线和横向分布系数，并对内力横向分布系数进行了参数分析；基于参数分析的结果，拟合了装配式斜交空心板桥与对应正交桥内力横向分布系数的关系式，为装配式斜交空心板桥的内力计算提供了实用计算方法；对比分析了装配式斜板桥与整体式斜板桥的内力、支座反力以及变形特点，得出了一些有益结论。

U.S. Air Force 36th Air Expeditionary Wing commander, said White, Guam's future military strength will be greatly enhanced, Guam's strategic position is particularly important, according to the U.S. Air Force's plan, in the next 5 years to 10 years, the Air Force is expected to Guam Andersen Air Force Base to invest one billion U.S. dollars to two billion U.S. dollars of funds to expand the size of the base, which also reflects the Anderson Air Force Base in the Pacific region will become the most important U.S. air base.

美空军第36空中远征联队司令怀特表示，关岛未来的军事实力将获得极大增强，关岛的战略地位尤为重要，根据美国空军的计划，在未来5年到10年时间里，空军预计向关岛安德森空军基地投资10亿美元到20亿美元资金，扩展基地的规模，这也反映出安德森空军基地将成为太平洋地区美军最重要的空军基地。

Here we have discussed the Casimir force of Maxwell-Chern-Simons gauge field and obtained the new results, namely the contribution of force of M-C-S gauge field to the Casimir force zero temperature, the radiative correction to the Casimir force of M-C-S gauge field at zero temperature and Casimir force of M-C-S gauge field at finite temperature between two parallel ideal conducting wires.

本文讨论了两个平行的，理想的金属线之间Maxwell-Chern-Simons规范场的Casimir效应。不仅得到了绝对温度下自由的M-C-S规范场对Casimir力的贡献，而且得到绝对温度下M-C-S规范场的真空涨落对Casimir力的辐射修正以及温度对M-C-S规范场的Casimir力的修正，并且分别考虑了无质量极限，低质量极限和高质量极限情况。

Consulting the existed classified methods of rural surplus labor force and my understanding of circumfluence and non-return labor force, this article divides rural surplus labor force into two parts, which are native non-return rural surplus labor force and allochthonous non-return rural surplus labor force.

文章借鉴已有的农村剩余劳动力分类方法，并结合自己对回流与非回流劳动力的理解，将农村剩余劳动力分为两类，一类为异地非回流劳动力，一类为本地非回流劳动力。

LONDON - Eastern military - said the Chinese air force training in foreign countries lags behind the urgent need for new higher education machine - air force fighter trainer training Bidar PAKFA Air Force Air Force Air Force Base Education Training aircraft training system.

东方网-东方军事-外国称中国空军训练水平落后迫切需要新高教机-教练机空军战机空军飞机空军训练Bidar PAKFA 训练方法空军基地高教机训练系统。

The method divides block along the intersection edge of joint faces and neglects the vertical shear force between dividing-blocks i.e. takes horizontal normal force and shear force into account; as to an assumed sliding direction, by satisfying vertical force equilibrium of every dividing-block and whole force equilibrium in the sliding direction, the factor of stability can be solved.

基于此，提出分块极限平衡分析法，该方法沿非临空面交棱将块体进行分块，在忽略分块间的垂向剪力（即可考虑分块间的水平法向力和剪切力）前提下，通过满足各分块的垂向力平衡和滑动方向上的总体力平衡，求解特定滑动方向的稳定系数。

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

Liquor-making enterprises in Sichuan had suffered great loss from May.12 Wenchuan Earthquake. The main reasons for distilleries' loss were analyzed and the following recommendations were put forward for the reconstruction and the restoration of the damaged distilleries: 1. layout design of workshops strictly followed relative national requirements and anti-earthquake grade of key workshop enhanced advisably; 2.the techniques of shock isolation, shock absorption and shock prevention etc. should be applied in...

在5·12汶川大地震中，四川白酒企业遭到了重大损失，分析了其主要原因，并建议白酒厂在新建、改建、扩建时满足以下条件：①严格按照国家有关规范中规定设计，对重点车间适当提高设防等级；②逐步将隔振、减振、制振等技术应用到白酒厂房屋设计与生产设备安置中；③贮存容器安置要科学合理，并采取适当的保护措施，大型贮存容器的设计要考虑底部抗压问题，以防止次生灾害的发生。

With the decrease of Mach number of inflow, the total pressure recovery and the shock angle increase; the number of reflection of shock wave in the duct also increases, but the strength of the shock wave decreases.

对某典型高超声速侧压式进气道三维流场进行了数值分析，就壁面压力分布、波系结构和近壁流谱图与实验结果进行了比较，计算反映了流动的基本特徵。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！