基于梁杆结构的稳定性分析提出了结构稳定优化的概念。
A concept of structure stability optimization is described on the basis of beam member structure stability analysis.
由二阶理论建立了梁杆结构分析的精确几何非线性有限元增量平衡方程，并利用精确有限元方法对一些典型结构进行了稳定性分析。
Accurate geometry! Non linear finite element increment equilibrium equation is set up by two orders theory. Typical structure stability is analyzed with this accurate finite element method.
本文介绍了对由杆、膜、梁、板壳单元组成的工程结构可进行实际设计的程序系统DDDU。
The program system DDDU for actual design of engineering structures composed of bar, diaphragm, beam, shell, etc. is introduced.
实测资料表明，上下行并行的钢板梁桥在采用“两桥连接”加固以后，平联杆件的弯曲变形和断裂现象急剧增多。
Measured results indicate that the bend deformation and abruption phenomenon appears very quickly when the "two-bridge-junction" method is adopted in the parallel steel plate beam.
整个结构划分为若干组合单元，每个组合单元包括拱、桁梁及竖杆横撑架三部分。
The structure is resolved into several compound elements and every compound element consist of three parts: arch, trussed beam and lateral brace.
计算了结构与运动刚体之间的冲击力时程曲线、梁中的剪力及弯矩分布、轴力杆件中的轴力分布。
The impact force-time history between the structure and the moving rigid-body, shear force and bending moment distribution along the beams, axial force distribution along the bars were calculated.
为了解决这些问题，他们关于梁、杆和板在应力、压力或负载下是怎样变动的提出了假设。
To solve these problems they concocted hypotheses on how beams, rods and plates behaved under stresses, pressures, or loads.
从能量泛函出发，通过引入高阶动态位移模式，导出了杆、梁、框架结构动态有限元列式，建立了杆梁动态有限单元。
Based on energy functionals and with the inclusion of high order dynamic displacement modes, the finite dynamic element formulation for bar and beam is developed.
利用杆件结构有限元动力分析计算，并通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through beam structure finite unit dynamic analysis and experiment of RC model beam, we build the relationship between beam bridge attached load vibration characteristics and damaged model.
2010年8月，梁在2010年PGA锦标赛的第三轮，以低于标准杆8杆的64杆成绩，创造了呼啸峡新的球场纪录。
In August 2010, Liang set a new course record at Whistling Straits with his 8-under 64 in the third round of the 2010 PGA Championship.
结构元素包括杆元、平面梁元、空间梁元、平面三角板元、平面矩形板元和弯曲矩形板元等。
Structural elements contain bar, plane beam, space beam, triangular and rectangular plates with membrane stresses, rectangular plate element with bending deformations.
为了使上层公路桥面板能帮助主桁上弦杆抵抗巨大的纵向压力，正桥全部采用混凝土桥面板与钢桁梁共同作用的板桁结合梁。
In order to let the slabs help the top chords of the steel trusses resist the giant compressive forces, slab truss composite structures are used throughout the main bridge.
超前支护锚杆锚固后与顶板岩石构成一体，这样使超前锚杆形成组合梁作用，放炮后，能够阻止顶板岩石冒落。
Forward support bolt combined with roop rock by bolting can play a roll of combined beam, which can prevent roof rock caving immediately after explosion.
为保证在施工期间的交通正常运行，连续梁的施工特采取贝雷杆件组拼支墩和横梁作为支撑系统。
In order to ensure the normal operation of traffic in construction the continuous box beam 's construction adopts cross beam as supporting system and Bailey member bars as abutments.
该模型的拓扑结构可以是任意型式，允许包含四边形单元、三角形单元和梁（杆）单元。
The model may be various non-simple topological structures and contain any combinations of beams, triangular elements and quadrilateral elements.
应用曲杆有限单元法建立曲线梁桥的实用分析方法，并考虑了曲线梁桥的非径向支承特征。
Applying the theory of curved beam FEM, a practical method of structure analysis of curved bridge is build when considering the sidelong support.
古城大桥是一座下承式单承载面钢管混凝土系杆拱与变截面连续梁组合体系桥梁。
Gucheng bridge is a steel tube concrete bowstring arch and variable cross section continuous beam composite system through bridge with single load plate.
本文基于柔性多体系统动力学对索杆梁钢结构施工动力学的理论进行了研究并研制了相应的仿真软件系统。
In this thesis, based on the dynamics of flexible multi-body systems, the analysis of dynamical systems of cable-strut and beam steel structure and the corresponding simulation research is addressed.
本文通过算例对广义梁理论和薄壁杆件翘曲理论进行了比较研究，并指出了后者的贡献和局限性。
By an example, the warping theory of the thin-walled beam is compared with and distinguished from GBT, while the contribution and the defect of the former is presented.
根据输电线路钢管杆的受力特点，将钢管杆简化成受复杂载荷作用的变截面梁的纵横弯曲和扭转问题，并采用传递矩阵方法进行分析求解。
Based on the stress performance of steel pole of transmission line, the steel pole is simplified as a matter of cross bending and torque with variable sections and complex loads.
首先对弹性五杆机构进行有限元分析，通过机构梁单元节点位移间的关系，建立起弹性五杆机构单元质量矩阵与刚度矩阵以及弹性动力学模型。
Firstly, the links of the plane five-bar linkage mechanism is simulated by beam element, the mass matrix, stiffness matrix of linkage mechanism and elastic dynamic model of system are established.
在钢管混凝土系杆拱桥系梁支架搭设施工中，支架基础的承载能力和支架自身的稳定性是工程的关键。
The foundation's bearing capability under the bearing bracket and the stability of the bearing bracket are the key points in the construction of the under supporting steel pipe concrete arch bridge.
对钢与混凝土组合梁扭转进行了探讨，提出了以开口薄壁杆件的约束扭转理论为基础的扭转极限分析方法。
The torsion of composite beams of steel and concrete and the limit analysis based on the theory of twisted members with thin walled open section and restraint of warping are discussed.
根据结构的初始状态及其计算模型，即可确定零状态梁的加工位形以及索和杆的下料长度。
According to the initial state stress and the finite element model, the fabrication length of the cables, bars and beams at zero state can be determined.
在游梁式抽油机上使旋转的平衡块与游梁相连的钢杆。
The steel beam that connects the rotary counterbalance with the walking beam on a beam pumping unit.
提出了空间柔性转子梁单元模型，建立了考虑关节及杆柔性的空间机器人动力学方程。
The model of a spatial flexible rotor beam element is presented, and the dynamic equations of spatial manipulators considering joint and link flexibility is derived.
对连续梁和双杆框架模型的初始后屈曲进行了研究。
The early buckling of models of continuous beams and the frames with two bars were studied.
在有限元空间梁元模型的基础上，导出了考虑杆件约束扭转的薄壁梁元分析力学模型。
Based on the space beam element analytical model, a new thin-walled beam element model considering the restrained torsion was derived in this paper.
系统地介绍了采用斯蒂芬森链对常规型游梁机进行六杆式改造的图解方法。
The article introduces systematically the schematic method for the six-bar modification of a conventional pumping unit by use of Stephenson' chain.
系统地介绍了采用斯蒂芬森链对常规型游梁机进行六杆式改造的图解方法。
The article introduces systematically the schematic method for the six-bar modification of a conventional pumping unit by use of Stephenson' chain.
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