查询词典 spring beam

It should be noted that this represents the stiffness of the equivalent torsional spring and not that of the original flexural beam.

需要指出的是这里的刚性所代表的是等量的减震弹簧的而不是其他的弯曲部件。

In this model,the tramcar was regarded as two degrees of freedom spring-mass-damper system,and the track was regarded as Bernoulli-Euler beam that locates on continuous and elastic ballast.

模型中，矿车被等效为两自由度弹簧-质量-阻尼系统，铁轨被等效为铺设在连续弹性道床上的伯努利-欧拉梁，矿车与铁轨的振动相互耦合。

Based on the study achievements of some predecessors,bridge,pier and abutment were simulated by solid element,rail and sleeper were simulated by space beam element,the links of rail,sleeper,bridge,pier and abutment were simulated by spring element,a three-dimensional finite element spatial mechanics model for calculating the rupture force between continuously welded rail and high-speed railway bridge was established.

在吸收前人研究成果的基础上，采用实体单元模拟桥梁及桥梁墩台，采用空间梁单元模拟钢轨及轨枕，采用弹簧单元模拟钢轨、轨枕、桥梁与墩台之间的连接，建立了断轨三维有限元空间力学模型。

A three-dimensional finite element spatial mechanics model for calculating the additional longitudinal force transmission between continuously welded rails and high-speed railway bridges is established by using solid element to simulate bridges as well as pier and abutment,using space beam element to simulate rails,using spring element to simulate the link between bridges and tracks as well as pier and abutment.

采用实体单元模拟桥梁及桥梁墩台、空间梁单元模拟钢轨、弹簧单元模拟桥梁与墩台及轨道之间的连接，建立梁—轨纵向相互作用三维有限元空间力学模型。以丰沙线永定河单线铁路桥梁、秦沈线沙河双线铁路桥梁对其进行计算验证。

A new design model for shield lining segments, beam-discontinuous joint model, is described in this paper. And based on the new model, the distribution mode and value of the loading pressure on the lining segments are back analyzed using the measured data of segment pieces such as axial force and bending moment etc. In addition, a partial-peripheral ground spring model is compared with a whole peripheral one in the backward analysis.

本文围绕盾构衬砌管片的设计模型与压力荷载分布问题，首先概述了一种新的设计模型--梁-接头不连续模型，在此基础上，利用管片内力的现场实测值，来反演确定作用在衬砌结构上的压力荷载的分布模式与大小，同时，运用反演分析技术对局部和全周地层弹簧作用模型进行了比较。

Using the models, the author has also calculated the vibration response to high speed railway vehicles of three types travelling over simply-supported beam bridges with various span lengths respectively. Based on the analysis of the computation results, the concept of resonance velocity of a bridge under a high speed running vehicle is present, and it is pointed out that comparatively great vibration of bridges on high speed railways is caused by bridge resonance resulted from the static force pulsating. In a vehiclebridge coupling vibration system, the damping constant of the axle spring is the main factor affecting the response variable of bridge velocity resonance, and the influence of track irregularity on bridge vibration on high speed railways is rather smaller.

利用所建立的计算模型，计算了三种形式的高速铁路车辆通过各种跨度简支梁桥结构时的振动响应，对所得到的计算结果进行了详细的分析，提出了高速行车下桥梁共振速度的概念并指出高速铁路桥梁产生较大振动的原因是静力脉动引起桥梁共振造成的；通过研究车—桥耦合振动系统方程的参数后指出，在车—桥耦合振动系统中，车辆—系阻尼的大小是影响桥梁速度共振时响应大小的主要因素，轨道不平顺对高速铁路桥梁振动的影响较小。

The finite element model included two types of main element: beam element for concrete and truss element for internal unbonded or external tendon. The end nodes of main elements were connected with internal constraints named MPC in ABAQUS. Spring elements with very large stiffness were set up at the place of the deviators of externally prestressed beams, or along the span with relatively little space of unbonded internally prestressed beams. The modified Riks method is utilized to trace the entire structural response of beams prestressed with unbonded tendon from zero to ultimate loads. The reliability of the analysis model is verified by analytical results of typical test beams in comparison with experimental ones.

该有限元模型由两类主单元组成，即混凝土梁单元和体内无粘结或体外预应力筋桁架单元；主单元的端部节点用ABAQUS的内在约束MPC连接；在体外预应力梁的转向块处，或沿体内无粘结预应力梁全跨并以比较小的间隔设置刚度足够大的弹簧单元。

Ligan in the bottom of the displacement constraints imposed three in the top of stents, at 1.40 on the level of two-way Ligan vertex imposed constraints to consider stent top and Timber Beam friction between the role of the bar and Weigan the rectangular fastener, a semi-rigid, torsion spring used to simulate.

在立杆底部，施加三向位移约束；在支架顶部，对位于四角的立杆顶点施加双向水平约束，以考虑支架顶部和木梁之间的摩擦力作用；横杆与立杆之间的直角扣件，属于半刚性连接，用扭转弹簧来模拟。

Among his 10 or more publications, there is the "Study on Aseismic Design of Joint Between Tunnel and Shaft by means of Beam Spring Calculation Modelling".

撰写&隧道和工作井连接部采用梁弹簧计算模型免震设计方法的研究&等10余篇技术论文。

Secondly, based on the strength analysis of 5618TEU container launching, a model of ship considered as an elastic beam on an elastic foundation and a key hold are built. With the direct reactive force method and spring foundation method, the key hold local strength is analyzed, and two results are gotten.

其次，结合5618TEU集装箱船下水的总体及局部强度分析，建立弹性船体梁，以及关键舱段有限元模型，运用直接加支墩反力和用弹性支墩支撑两种方法，进行关键舱段的局部分析，得出结果。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。