Analyzed factors affected springback in beam bending forming, elaborated how to springback compensation in die design process, introduced the die working process. 分析了横梁压弯成形过程中影响回弹的因素,阐述了在实际模具设计过程中如何进行回弹的补偿,介绍了模具的工作过程。
Relatively comprehensive test study on the strength capacity of the reinforced concrete beam under bending moment, shear force and axial tensile force was carried out. 对弯、剪、轴拉复合受力状态下钢筋混凝土梁的承载能力进行试验研究。
It firstly derivates theoretical analysis formula of force and stroke by using beam bending theory and energy method. 首次采用梁的弯曲理论和能量法结合的方法推导了弯曲力和行程的理论解析公式。
Testing method for annealing point and strain point of glass by beam bending 玻璃退火点和软化点测定方法-压梁法
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
Finally, a numerical instance of rubber beam bending deformation is given to demonstrate that the method is highly accurate and self-adaptive in solving large deformation engineering problems. 通过给出橡胶梁弯曲变形的数值算例,说明再生核粒子方法在解决大变形等工程问题上有着精度高,自适应能力强等特点。
The structure shearing force takes a one-way increasing trend with the decrease of ratio of beam bending rigidity and pier lateral displacement rigidity and the increasing rate is bigger. 结构的剪力值随梁抗弯刚度与墩抗侧移刚度比的降低而呈单向攀升趋势,其增长速率较快。
Dynamic Plastic Fracture of a Beam Under Bending Moment and Tensile Force 梁在拉伸力和弯曲力矩联合作用下的动态塑性断裂
Calculation on Large Deflection of Beam Bending Using Numerical Integral Method 计算梁大挠度变形的数值积分法
On Basis of composite mechanics, an analytical model of composite beam under bending is established and the corresponding deformation response is formulated. 根据复合材料力学,建立了弯曲条件下复合梁的分析模型,并导出了相应的应变响应关系。
Application of Intelligent Instrument in Beam Bending Normal Stress Experiment 智能仪表在直梁弯曲正应力实验中的应用
With an identical vehicle running speed, the vibration response of the bridge increases with the decrease of track beam bending rigidity. 在相同车速下,随着轨道梁抗弯刚度的降低,桥梁振动响应增大;
The numerical examples illustrate that the wavelet based element has high analytical accuracy for beam bending problems with various boundary conditions and structures. 数值算例表明,本文构造的小波基梁单元对不同约束条件、不同结构形式梁弯曲问题均有较高分析精度。
The methods of direct indentation, indirect indentation and notched beam bending are used respectively to study the fracture toughness of four ceramic cutting tool materials. 运用直接压痕法、间接压痕法和切口梁法分别对四种陶瓷刀具材料进行断裂韧性的测试研究。
In this paper, using the similarity between the longitudinal free vibration of a bar with variable cross section and the beam bending the longitudinal vibration function is obtained from the moment on the cross section of the bending beam. 本文根据均质变截面直杆的纵振与等截面直梁的弯曲问题的一些相似性质,把求变截面直杆纵振函数变为求梁弯曲时的截面上的弯矩问题。
The susceptibility of the weld bond of 9% Ni steel weldment to hyd(?) ogen-induced cracking was studied by using cantilever beam bending test, TRC test and Implant test. 本文采用悬臂梁弯曲试验、TRC试验、插销试验探讨了9%Ni钢焊接熔合区氢致裂纹敏感性。
The analysis of every phase of prestressed concrete beam in bending 预应力混凝土梁的抗弯全过程分析
In two general displacements beam bending theory of solid mechanics, the bending and vibration problems are described by two high order differential equations. This paper presentes a new method and treats them in normal equation. 将固体力学中具有两个广义位移的梁弯曲问题和振动问题的高阶方程组,转换成正则方程的形式,以矩阵分析为数学工具,求解此正则方程组得到他们的通解。
A simplified calculation of stair beam bending and deformation 阶梯式梁弯曲变形的简化计算
Influence of Laser Beam Bending on Thickness Measurement of Hot Steel Plate 光线弯曲对激光测量热钢板厚度的影响
Utilizing the primary equation of beam bending, the original parameter solutions of questions about bending of variable cross-section beams are derived and accurate numerical solutions are got by using the method of cuneiform beam, which can be used for forced-bearing analysis in engineering structures. 利用梁弯曲的基本方程,导出了变截面梁弯曲问题的初参数解,并用楔形梁法求出其精确数值解。可用于工程结构的受力分析。
The probability distribution of the bending fatigue life of the coral concrete results show that coral aggregate concrete beam specimens bending fatigue life of the Weibull probability distribution, consider the failure probability of double logarithm fatigue equation and single the number of fatigue equation. 研究了珊瑚混凝土的弯曲疲劳寿命的概率分布,结果表明珊瑚骨料混凝土小梁试件的弯曲疲劳寿命较好的服从Weibull概率分布,建立了考虑失效概率的双对数疲劳方程和单对数疲劳方程。
With steel and concrete caking performance improvement, beam that cracking load and limit bearing capacity have improved, and beam bending rigidity increased accordingly. 随着钢筋与混凝土界面粘结性能的提高,梁的开裂荷载和极限承载力都有所提高,同时梁的抗弯刚度相应提高。
It is discovered that by beam bending test at low temperature anti-cracking performance of fiber asphalt mixture may be improved clearly because of the roles of crack resistance and stress dispersion of fibers. 通过简支梁低温弯曲试验发现,由于聚丙烯腈纤维的阻裂及应力分散作用,沥青混合料的低温抗裂性能得到改善。
Establish a appropriate objective function with the consideration of beam bending energy, the beam bending moment at the top of the pier, the cable quantity and displacement, then compute the most optimal height of the pylon to make the beam and cable under a reasonable condition. 综合考虑塔梁弯曲应变能、墩顶主梁弯矩、位移、应力和拉索用索量,建立合理的目标函数并求解,得出最优塔跨比,使得主梁和拉索受力相对合理。
Symplectic method has been applied in some plate and beam bending problems successfully. Compared with classical method, it has some unique advantages. 辛方法作为一种崭新的理论求解体系已成功应用于板、梁等弹性力学问题的求解,与经典的弹性力学求解体系相比有着其独特的优越性。
Mathematical model of the beam bending problem can be boiled down to the solution of the differential equation under certain boundary conditions and initial conditions. 梁的弯曲变形问题的数学模型可归结为在一定的边界条件和初始条件下的微分方程的求解。
For the size effect of the reinforced concrete beam bending property, the researchers have already done the related research in the past. However, for the ductility and the rotation ability of the reinforced concrete beam, whether there is size effect is still in dispute. 对于钢筋混凝土梁弯曲性能的尺寸效应的研究,过去已经有许多学者做了相关研究,但对钢筋混凝土梁的延性、转动能力等弯曲性能是否存在尺寸效应仍有争议。