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- The identification of flutter derivatives for bridge sectional model has long been a key issue in long-span bridge flutter and buffeting analysis. 桥梁断面颤振导数识别问题可转化为最小二乘优化问题,提出了梯度下降算法求解该优化问题,提取桥梁主梁断面18个颤振导数。
- The stability and wave overtopping rate of 3 kinds of revetments (sloping, big step and cylindrical structure types) are studied by using sectional model test. 利用断面物理模型试验,对3种结构形式(斜坡段、大台阶段、圆筒段)的护岸的稳定性和越浪量进行了研究。
- By test-loading of model of the tower-top hollow section model for Lan-cang River long-span bridge in Jing-hong, adequacy of prestressed loop stirrup design is testified. 通过对景洪澜沧江大桥索塔顶端模型的加载测试;验证了箱壁中预应力环箍设计的可靠性.
- The recovery rate by WAG injection in stratified condensate gas reservoirs is higher than that by cyclic gas injection according to the simulation study by use of stratified 2-D sectional model. 通过层状二维剖面模型的模拟研究 ,证明了在层状凝析气藏中水气交替注入的采收率比循环注气的采收率高。
- The modal coupling intensities of sectional models are lower than those of aeroelastic models. 节段模型刚性系统模态耦合强度低于气弹模型柔性系统强度;
- A new method, which uses the coupled vibration record - (CVR) of very simple section model as basic information to identify two-dimen-sions nonsteady aerodynamic model for nonstreamlined bodies , is proposed in this paper. 本文提出了一种以节段模型受初脉冲激发后的耦合振动时域记录为基本信息,在线识别二元非流线体非定常气动力模型的方法(CVR法)。
- wind tunnel test of sectional model 节段模型风洞试验
- OVERALL AND SECTIONAL MODEL TESTS FOR WASTE WATER DEEP SEA DISPOSAL PROJECT 污水深海排放工程整体与断面模型试验
- SECTIONAL MODEL TEST FOR THE SOUTH HAIBIN ROAD REVETMENT WORKS IN WEIHAI 威海市海滨南路护岸工程断面模型试验
- He has lived one section of miserable life. 他过了一段悲惨的生活。
- METHOD FOR IDENTIFICATION OF FLUTTER DERIVATIVES OF ABRIDGE SECTIONAL MODEL 桥梁颤振导数识别的一种方法
- Signals control each section of the railway track. 各种信号控制着铁路轨道的每个部分。
- A hinged or removable section for a table top. 活动桌面桌子上部有铰链连接或可移动的部分
- Comparing and research of airiness pipes cross section model 通风管道横截面形状对比和研究
- First the surgeon performed the section of the blood vessel. 外科医生首先切开血管。
- He lived in a quiet section of uptown. 他住在住宅区的一个安静的地段。
- He occupied the other section of Martin's house. 他占用了马丁房子的另一部分。
- The architect drew the house in section. 建筑师画出房子的剖面图。
- The Experimental Study of Wind Force on Bridge Deck Section Model 桥梁节段模型风力试验研究
- The last section sums up all the arguments on either side. 最后一部分总结了双方的全部论点。