利用哈密尔顿原理在积分型本构模型描述基础上建立粘弹性移动梁的控制方程。
Utilizing Hamilton's principle and the constitution relations in an integral form, the governing equations of motion for an axially moving viscoelastic beam is derived.
利用哈密尔顿原理在积分型本构模型描述基础上建立粘弹性移动梁的控制方程。
The equations of motion governing the quasi_static and dynamical behavior of a viscoelastic Timoshenko beam are derived.
鉴于该方法只能识别梁中的单处损伤，提出了结合移动质量法和神经网络进行结构损伤识别的方法。
As the method can only detect single damage in beam, this paper proposes the method of combining moving mass method and neural network to detect structural damage.
将每根枕木考虑成一个支座反力，将横向枕木支承的钢轨模拟成离散的弹性地基梁模型，将列车考虑成一个作用在梁上的移动荷载。
We consider each sleeper as an abutment of opposite forces, rails on horizontal sleepers as a mock dispersed elastic ground beam model and trains as moving load on beams.
在游梁上的平衡块用于浅井，并可沿游梁移动平衡块进行调整。
Counterweights on the walking beam are used for shallow Wells and they can be adjusted by moving them along the beam.
一种可移动的提升装置包括一个安装在轮上的可拆卸的框架，它支撑伸在框架外的一个提升的水平梁。
A mobile lifting device comprises a dismantlable frame mounted on wheels and supporting an elevated horizontal beam which projects out beyond the perimeter of the frame.
计算表明，基础弹性突变对梁的振动有较大影响，其影响随着移动荷载速度的增加而增加。
The computations show that the foundation elasticity stiffness abrupt change has greater influences on beam vibration. This influences increase with increase of the velocity of the moving loads.
移动钢结构梁和防盗墙的位置，就可以任意变化住房的结构。
The structure of the building can be changed at will by moving the steel beams and the security wall.
介绍移动模架施工现浇混凝土连续箱梁的施工工艺，以及在施工中应该注意的事项。
This article gives the construction procedure and instructions for on-site casting of continuous concrete box beam with mobile mould.
组合岩梁模型的建立，为采场矿压和岩层移动的研究提供了一种新的思想和方法。
This model provides a unified idea and method for study of pressure in longwall mining and strata movement.
研究结果表明：1）等效移动集中力作用下，简支梁的动力响应由稳态响应和瞬态响应组成。
The results are shown that: 1) under an equivalent moving concentrated force, dynamic responses of the simply supported beam consist of steady response and transient response.
以广义移动最小二乘法为理论基础，将同时考虑挠度和转角双变量的无单元法运用于欧拉梁的动力特性计算与分析。
Based on the generalized moving least square method, a new Element-Free Galerkin (EFG) double-variable approximation is applied to dynamic characteristic calculation and analysis of Euler beam.
行走梁移动导向结构由以往的滑套式改为滑动导轨式，便得行走梁运行更轻巧、灵活，运动刚性好。
Change walking beam guide structure from slide bush type to glide orbit type, make walking beam move more dexterously and nimble, and with good movement rigidity.
以关键层理论、传递岩梁理论以及采场上覆岩层及地表移动规律理论为基础，推导出岩梁抗弯刚度的误差补偿公式。
On the basis of key rock strata theory, transferring rock beam structure and the law of the overlying strata displacement and the surface subsidence theory, we deduced offset error formula.
同时，简支板梁桥又是小跨径桥梁最常用的桥型之一，因此，移动车辆荷载引起的简支板梁桥动力效应越来越被工程技术界所关注。
So the dynamic response of the plate girder bridge under moving loads are the problem which is concerned about all along, and also a project to be studied deeply.
从动力学微分方程出发，研究了匀速移动载荷作用下弹性基础连续梁和弹性基础铰接梁的计算方法。
Based on the dynamic differential equation, the calculating methods of the continuous and hinged elastic base beams under the action of moving loads with uniform speed are studied in the paper.
通过对一个已使用40多年的钢筋混凝土吊车梁碳纤维加固后的现场加载试验，分析了加固后吊车梁在吊车移动荷载作用下正截面和斜截面的应变分布规律及挠度变化规律。
Based on the field load tests of more than 40 years old a reinforced concrete crane girder after strengthening strengthened with CFRP, the strains and deflections under the moving loads were analyzed.
箱梁用来在移动牛腿时支撑整个结构。
The beams are used to support the whole structure during shifting of the brackets.
采用施加在轨道上的一系列移动轴荷载模拟列车作用，利用轨道结构连续弹性双层梁模型，计算出某城市地铁列车运行产生的轨枕与隧道之间的作用力。
Using the continuous elastic double layers beam model of track structure, the forces between the sleepers and the tunnel inlay produced by the running of certain subway train were calculated.
对组合岩梁模型在岩层移动规律研究、地表沉陷控制以及在矿井瓦斯防治中的应用进行了深入地分析。
The applications of the composed rock beam model in ground control, surface subsidence control and gas prevention in coalmine are studied deeply.
通过研究斜拉桥模态试验的特点，首次提出了在两点移动测点法的基础上，利用梁模型振型函数优化峰值拾取法的模态参数，取得了理想的效果。
Based on the former work, dynamic FEM analysis is made on the dynamic properties of the longest-span concrete cable-stayed bridge in Asia with geometric nonlinear effects considered.
从动力学微分方程出发 ，研究了匀速移动载荷作用下弹性基础连续梁和弹性基础铰接梁的计算方法。
The dynamic displacement and connection forces characteristics of a floating bridge with nonlinear connecters subjected to moving loads were investigated.
钩子上挂有部件的吊运车（156）移动到延伸超过涡轮机的主梁（128）的后部。
The trolley (156) with the component on the hook is moved to the aft portion of the main beam (128), which extends beyond the turbine.
对于在移动集中荷载组作用下的连续梁，应用这些公式，可求得最不利载荷位置和最大绝对弯矩。
According to these equations, both the most unfavorable loading location and the maximum absolute bending moment of continuous beam loaded under a group of movable loads can be found.
研究结果表明，基于动力模型的BP神经网络移动荷载识别方法，能够有效识别简支梁桥与连续梁桥上的移动车载；
The results show that the method of BP neural network used to identify moving force based on the dynamic model can effectively identify the moving force on the simple beams and continuous beams.
但如果导管上运用的力不足时，力不足以使曲梁弯曲，曲梁将阻止导管移动。
However, if enough force is not applied to the tube, it will not overcome the curved beams and they will stop movement of the tube.
罩朝基座的向下移动使得触头梁向外凸出预定距离，这样产生触头梁抵着表面的预加载位置。
Downward motion of the cover towards the base cams the contact beams outward to a specified distance, thus creating a preload situation of the contact beams against the surfaces.
采用移动模架施工多跨连续梁时，线形控制有其自身的特点。
The geometrical alignment control for the construction of multi-span continuous girder Bridges with MSS (Movable Support System) has its own characteristics.
当导管受力从阻塞段移动至流动段时，曲梁向外弯曲允许导管通过。
As a tube is forced from the occluding section to the flow section the curved beams flex outwardly permitting the tube to pass.
当导管受力从阻塞段移动至流动段时，曲梁向外弯曲允许导管通过。
As a tube is forced from the occluding section to the flow section the curved beams flex outwardly permitting the tube to pass.
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