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Nonlinear Free Vibration Analysis of Asymmetric Thin-Walled Circularly Curved Beams with Open Cross Section 非对称开口截面薄壁圆形曲梁的非线性自由振动分析
Theoretical Calculations and Experimental Studies of Bending Center of Thin-walled Beams with Open Section 开口薄壁杆弯曲中心的理论计算和试验研究
Since the nine-span double open neutral section is unable to satisfy the requirements of the6th raising of speed in large scale, so the reconstruction of it is needed. 既有九跨式双断口电分相因不能满足第6次铁路大提速要求而需对其进行改造。
The number of participating schools has now grown to 74, including both the open enrolment section – where individuals from numerous companies sign up to learn about general management or strategy – or in the customised section of the ranking – programmes designed for one particular company. 参与学校的数量现在已增至74所,包括公开课程许多公司员工报名学习一般的管理或战略或定制课程针对某家公司的培训课程。
A Theoretical Model Study of Open Section Effect on the Mechanical Properties of Long Bone 长骨内开口效应对其力学性能影响的理论模型研究
Based on the theory of Vlasov, this paper proposed the method of spline Ritz to analyse the restrained torsion of thin walled bar with open section, combining the traditional Ritz method and spline function method. 提出了一类新的样条坐标矩阵。同时在符拉索夫理论的基础上,结合传统的里兹法,利用样条函数提出了开口薄壁杆件约束扭转计算的样条里兹法。
As the body of aqueduct is open section thin-walled member, transverse displacement-lengthways displacement> bending-twisting vibration> restraint twisting deformation and lengthways curl are considered in discussing aqueduct dynamic model. 针对渡槽槽身为开口薄壁结构特性,在探讨渡槽动力模型时考虑槽身的横向位移、竖向位移、纵向翘曲。
Analysis of Open Cross Section Thin Walled Bar for Distorsion Effection 开口截面薄壁杆件畸变效应的分析
Dynamic Analysis of a Cable-stayed Bridge with Open Section Main Beam 开口截面主梁斜拉桥的动力分析
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. 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。
A More General Equation for Bending Center of Beams of Thin-Walled Open Section 开口薄壁梁弯曲中心的普遍解
Design of Buoyancy Resistance of Soil Anchorage in Open Section of Underpass 道路下立交工程敞开段结构土层锚杆抗浮设计
The mechanical model of femur mid-diaphysis with a rectangular open section in the exterior cortex was developed and a finite element method was adopted in calculating and analysing the changes of torsional stiffness and the stress distribution when the dimension of the open section altered. 建立一个股骨中段的外侧皮质带有矩形开口的力学模型,采用有限元方法,计算骨开口区的尺寸改变时,股骨的扭转刚度和应力分布的变化。
Thermal buckling FEM of large space structures including thin-walled open section beams 含开口薄壁杆的空间结构热屈曲有限元分析
This paper describes a two node thin-walled open section beam element with 14 degrees of freedom used to analyze the torsional vibrations. 为了解热诱发弯扭耦合振动的机理,发展了一种14个自由度的二节点开口薄壁梁单元。
One-dimensional discrete finite member element method which is based on Hamilton Theory is applied on the theoretical and numerical dynamic analysis of the open section thin-walled beams. 在此基础上,建立开口薄壁杆件一维离散有限元法的动力分析理论和计算模型。
Thermal Deformation and Buckling Analysis on Large Space Structures Including Thin-walled Open Section Beam 含开口薄壁杆件的大型空间结构热变形与热屈曲分析
A Spline Ritz Method for Analysing the Restrained Torsion of Thin walled Bar with Open Section 样条里兹法计算开口薄壁杆件约束扭转
First, we measure and demarcate the inflow uniformity in the open test section of the wind tunnel. 首先,通过对该风洞开口段的来流风速的均匀性进行了测量和标定;
Simple calculation of the coordinates of the bending center of the thin-walled beam with open section 开口薄壁截面梁的弯心坐标的简便计算
Thermal buckling is a common problem for large flexible space structures consisting of thin-walled open section beams. A two-node thin-walled open section beam element was developed with a warping degree of freedom. 针对含开口薄壁杆件的大型空间柔性结构热屈曲问题,发展了一种包含翘曲自由度的二节点开口薄壁杆单元。
The method of graph multiplication can be used to calculate the coordinates of the bending center of the thin-walled beam with open section which consists of n small rectangles, thus avoiding complicated integrated operation. 对于由n个小矩形组成的开口薄壁截面,可以用图乘法计算弯心坐标,避免了复杂的积分运算。
A simple calculation expression of the shearing flow and the coordinates of bending center is introduced for the thin-walled beam with open section. 针对开口薄壁截面梁的剪流和弯心坐标的复杂计算问题,导出了简便计算公式。
The main contents of this paper are as follows: ( 1) Based on the construction feature of the Arch Bridges with Open Thin-walled section, the essay states the process of Construction technology. 研究的主要内容如下:(1)根据开口薄壁截面拱桥的施工特点阐述了该桥的施工工艺流程,并结合工程实例对该桥监控的重点和难点内容进行了分析。
The method of calculating buckling critical load of open section thin-walled bar as the type of curly cross section strip is given. 3. 给出了弯曲截面钢带这种开口薄壁类型杆件的失稳临界力的计算方法。
The open section of the lining segment is simplified as open-ring during 2D theoretical calculation to deduce the calculation formula of supporting forces under stratum water-soil load and frozen-heaving force, which considers the shearing action on the cross section. 3. 二维理论计算时将衬砌管片开口段简化为开口圆环,推导出在地层水土荷载和冻胀力作用下能够考虑开口管片横截面上剪切作用的管片结构支撑力计算公式。