In this paper, the measurement error is discussed from three above factors when the whole bridge is applied to measure the bending shear strain in the cylinder under bending and torsion. 对由两种材料组合而成的梁的弯曲正应力计算方法进行了研究,发现由于连接件剪切面上存在较大的剪力,使上下层梁同时受弯矩和轴力的共同作用。
The methods of compressing strain energy and bending strain energy are adopted to study low temperature performance of montmorillonite modified asphalt with two different montmorillonites by indoo. 通过两种武汉市售蒙脱土和实验室纯化蒙脱土,采用压缩应变能、弯曲应变能的方法,进行蒙脱土改性沥青低温性能研究。
Determination of the long-term ultimate bending strain and calculation of the long-term ultimate relative ring deflection, both under wet conditions 潮湿条件下长期环状弯曲应变和长期环形偏转的极限测定
And the law of bending strain, radius of curvature and the elasticity modulus of soil-cement under repeated loading change with number of load applications is studied. 并研究了重复荷载作用下水泥稳定土的弯拉应变、曲率半径和弹性模量随加载次数变化的规律;
Beam bending test of RPM pipe and control of beam bending strain in construction RPM管梁弯曲试验及其梁弯曲应变的工程控制
Ion-exchange polymer metal composite ( IPMC) is known as a material for artificial muscle actuator. The advantages of IPMC in requiring low activation voltage and the induced large bending strain led to its consideration for various potential application, especially in bio-inspired robotics. IPMC(ion-exchangepolymermetalcomposite)是一种人工肌肉材料,由于其较低的驱动电压能产生较大的位移变形,作为一种新型执行器非常适用于仿生机器人的开发。
We study the responding competence to the strain of the optic fiber coupler bonded on cantilever, because the coupling ratio of the fused optic fiber coupler is sensitive to the bending and the strain in the section of fusion. 利用光纤耦合器的耦合比对熔合区内弯曲和应力敏感的特点,在悬臂梁上对其应变响应能力进行了研究。
Applying the principle of minimum bending strain energy to seek for the optimum location of hoisting points can obviously reduce the maximum sectional bending moment, which can meet the requirements for structural strength and anti-crack of pole-towers. 采用弯曲应变能最小准则,搜索最优吊点位置,可显著降低杆塔最大截面弯矩,使之满足杆塔结构强度及抗裂要求。
This thesis establishes the mathematical models of measuring angle strain and bending strain, develops the functional relation between the strain and the measuring values. 建立了电磁检测法检测构件弯曲正应变和剪应变的数学模型,推导出应变与时间域计测值之间的函数关系;
Analysis of Pinch-type Roll-bending Process for Strain Hardening Plate 应变硬化薄板夹持型滚弯成形过程分析
And the influence of bending strain on critical currents and measured losses were analyzed. 分析了弯曲应变对它们的影响。
In the method the modal strain energy of an element is divided into tension modal strain energy, torsion modal strain energy and bending modal strain energy. 该方法将单元模态应变能分解为拉压、扭转和弯曲模态应变能,利用单元的主要模态应变能分量与结构固有频率的改变量对结构裂纹位置进行识别。
Measurement and Analysis of Dynamic Bending Strain in Marine Shafting 船舶轴系动态弯曲应变的测量与分析
Three-point bending model considering strain gradient effects& part ⅰ: propagation of tensile localized band 考虑应变梯度效应的三点弯梁模型解析研究&第一部分:局部化带的传播
Series solutions were derived for the in-plane strain, deflection and bending strain that satisfy the simplified boundary conditions to calculate the shear lag coefficient. 根据简化的边界条件,得到了面内应变和弯曲应变的级数解,进而求得剪力滞后系数。
The theoretical analysis on bending strain distribution around the cross-section circumference of a cylindrical alignment cell specimen with multiple-point measuring way was made. The general equation for calculating maximum bending strain had been developed to theoretically unify the expression of loading coaxality. 对圆柱形对中传感器试样横截面圆周弯曲应变的分布进行了理论分析,导出了最大弯曲应变的表示通式,使多点测量方式的加载同轴度达到了理论上的统一表达。
The length of liquefied area influenced the floatation response of buried pipelines obviously, and the floatation displacement and the bending strain increase with the length of liquefied area; 液化区的长度对地下管线的上浮反应明显,管线的上浮位移和弯曲应变随液化区长度增加而增大;
Comparative analysis has been underway from bending deflection, strain to natural vibration frequency and mode shape. 文中采用实体单元建立有限元实体模型,对加固前后梁桥的挠度、应变、自振频率和振型进行了对比分析;
It has been tried to predict the fatigue life of the specimen with different cross section acted under plane bending by the stress strain formular. 试图用应力&应变幅值关系式预测材料在平面弯曲负载条件下,不同断面形状试件的疲劳寿命。
It is pointed out that mastic Ep ü re content, temperature and loading pressure are the main factors influencing permanent deformation of guss-asphalt; fine to coarse aggregate proportion influences its maximum bending strain and crack energy at low temperature. 结果表明:沥青玛蹄脂含量、试验温度与荷载压力是影响浇注式沥青混凝土永久变形能力的主要因素,而粗细集料的比例则影响混合料的低温极限弯曲应变与断裂应变能;
Firstly, the paper gets the basic mechanics parameter indexes such as the bending strength, failure strain etc. 首先通过小梁弯曲试验,得到材料的弯拉强度、破坏应变等基本的力学参数指标。
To a long liquefied area, the treatment of the soil in the middle part of the area will reduce the length of the liquefied area, and can reduce the floatation displacement and bending strain of the buried pipelines greatly. 对于较长的液化区,可在液化区的中部对场地土进行处理,减小液化区的长度,可大大降低管线的上浮位移、弯曲应变。
Also both the equation for angle position of maximum bending strain and the equation for net bending contributions respectively due to the testing machine and the specimen was provided. 分别提供了表示最大弯曲应变方位角、净试验机最大弯曲应变和净试样弯曲应变的通式。
Analysis of Measurement Error on Bending Shear Strain in a Cylinder under Bending and Torsion 圆筒弯扭组合变形中弯曲切应变的测量误差分析
Then, the test results were analyzed to evaluate the bending capacity, deformation and strain. 2. 对试验得到的抗弯承载能力、变形和应变结果进行了详细的分析。
The FA reducer pin teeth structure is lying pillow type, so the bending strain may be ignored. 由于FA型减速器针齿采用卧枕式结构,弯曲变形可不计。
Using ingredient with 2% DCP to improve its creep resistance may attain the best result. ( 3) Adding PS may obviously enhance the rigidity of the composite, massively decline the bending strain and creep strain. 添加PS极大地提高了复合材料的刚性,大幅度降低了弯曲应变和蠕变形变,改善了其抗弯及抗蠕变性能。
For the latter, the spring beams in the specimen could reduce effectively the torsion strain or bending strain of the specimen caused by non-axial force, and keep the specimen under uniaxial tension. 其中,后一种试样中的弹性梁可以有效减小因非轴向对准而引入的扭弯变形,保证微拉伸梁的单轴向拉伸。