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Draft gear is used to reduce the bump between the vehicles when the train runs or shunts, whose form of load is mainly impact load, and as for viscoelastic material such as the rubber, whose stress is not only relate to strain but also relate to the time, so under the action of impact load, the viscoelastic material's capabilities is very different from the common elastic material.

由于缓冲器是用于缓和列车运行及调车作业时车辆之间的冲撞，其所受载荷形式主要是冲击载荷，而对于橡胶这种粘弹性材料来说，由于其应力不仅是应变的函数，还是时间历程的函数，所以在受冲击载荷作用下的特性和普通的弹性材料的特性有很大的不同。

At last, the fundamental viscoelastic parameters are calculated according to the data of the electrostatic experiment and a three-element solid inversion model. Draft gear is used to reduce the bump between the vehicles when the train runs or shunts, whose form of load is mainly impact load, and as for viscoelastic material such as the rubber, whose stress is not only relate to strain but also relate to the time, so under the action of impact load, the viscoelastic material's capabilities is very different from the common elastic material.

由于缓冲器是用于缓和列车运行及调车作业时车辆之间的冲撞，其所受载荷形式主要是冲击载荷，而对于橡胶这种粘弹性材料来说，由于其应力不仅是应变的函数，还是时间历程的函数，所以在受冲击载荷作用下的特性和普通的弹性材料的特性有很大的不同。

Finite-element analysis of quadrangular drill tower under wind load ;2. Curvature variation rule of cable and membrane structures subject to the wind load ;3. Then the wire strands and catway of Zhoushan Xihoumen bridge applied wind load in main cable construction are studied.

探讨了西堠门大桥主缆架设期间不同工况中索股在各级风载下的横向变形规律，结合猫道在不同级风载作用下的横向变形，通过索股和猫道相对横向变形量确定出猫道上可供主缆架设施工的风速。

Result: In first experiment, the results shows erector spinae of CLBP had positive correlation in the force-sEMG signal relationship on the testing of non-fatigue state of step extensions exercise; AEMG, MPF, IMPF increased with the load, but the Lempel-Ziv Complexity remain firm against the load. The second experiment of the research was that the mean values and the slopes of sEMG of the LBP were significantly different from healthy subjects during the isometric contractions of 20%MVC load intensity, except AEMG.

90秒静态负荷运动过程中，10％MVC运动强度时，慢性下背痛被试和健康被试AEMG、MPF、IMPF、复杂度的均值均没有显著性差异；20％MVC运动强度时，健康被试的MPF、IMPF、复杂度均值都低于LBP被试，对于10％MVC和20％MVC运动负荷强度时，慢性下背痛被试的AEMG、MPF、IMPF、和C的变化斜率都快于健康被试，除AEMG外，其余指标的变化率之间均有显著性差异；在两种负荷强度下的静态运动负荷实验中，左右侧腰部竖脊肌肌电信号特征无明显差别。

Based on platform structural design parameters, simulation research of load coupling among channels for fighting simulation Stewart platform was achieved by using load couping evaluation indexes, and the experimental validation of fighting simulation Stewart platform test prototype was done, which proved the validity and rationality of the load coupling evaluation indexes.

基于平台结构设计参数，运用负载交联耦合评价指标，对飞行模拟Stewart平台通道间负载交联耦合进行了仿真研究，并用飞行模拟Stewart平台试验样机进行了试验验证，证明了负载交联辐合评价指标的有效性和合理性。

According to the energy efficient requirements and characteristics of HDRWSN, a Load Balanced and energy aware routing protocol considering both energy consumption status and load congestion levels of sensor nodes has been proposed. LBEAR protocol equipoises network energy and load distribution, therefore, it can prolong the lifetime of HDRWSN through resource equilibrium.

根据高数据率无线传感器网络的能量高效需求和大数据量的特点，本论文提出了一种新型的LBEAR(Load Balanced and Energy Aware Routing)协议，LBEAR协议综合考虑了节点能量消耗状态和节点的负载拥塞程度，均衡了网络能量分布和负载分布，通过均衡网络资源延长了网络生存周期，从而提高网络的节能特性。

The article analyses the relationship between the load of pile in the direction and the pile root.The investigation indicates that the carrying capacity has nice adaptability to the soil floor depth the column knocked into and change of the oil floor construction when the plinth depth is larger than 60cm,and the length of the column and the change of the soil floor have little impact on load of pile,whereas load of pile is more sensitive to the anti-sinking and change of column diameter dimension.

分析了基桩竖向承载力与桩体结构的关系，研究表明：承载力在基桩深度大于60cm后对桩体打入土层深度、土层结构变化有良好的适应性，桩长和土层结构的变化对基桩承载力的影响不大，而基桩承载力对止沉盘和桩径尺寸变化敏感。

Traditionally,loads of the arc gate are applied on the support or gate frusta as a set of concentrated load,but the effect range of such load on the frusta cannot be solved by Material Mechanics and Structure Mechanics. Most of the load cases are fulfilled through optic-elastic test.

通常弧门荷载作为一组集中荷载作用于牛腿或闸墩上，而这组荷载对闸墩受力的影响范围材料力学方法和结构力学方法是不能解决的，受力状况大部分是通过光弹试验完成。

Frequency regulation is a measure that states the difference between no-load and full-load frequency as a percentage of full -load frequency.

频率调整率频率调整率是指空载和满载之间频率的差别与满载频率的百分比。

Frequency Regulation Frequency regulation is a measure that states the difference between no-load and full-load frequency as a percentage of full-load frequency.

频率调整率频率调整率是指空载和满载之间频率的差别与满载频率的百分比。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。