Applying MSC/Superform commercial software, dishing process of railway wheel with elastic-plastic thermo-mechanical coupled FEM was simulated,the way metal flows in dishing process was studied.
借助商业有限元软件MSC/Superform,数值模拟了车轮压弯成形过程。
The difference of the predictions of the load-bearing capacity using LRFD(1994),AIJ (1997),EC4(1996)and GJB(2001)is compared,and contrasts the calculating results with the experimental results,including:73 axially compressive members,8 pure bending members and 20 compression-bending members.
比较了设计规程 LRFD(1994),AIJ(1997),EC4(1996)及 GJB(2001)在进行矩形钢管混凝土构件承载力计算时的差异,并将以上规程的计算结果与收集到的试验结果进行了对比,其中包括:73个轴压、8个纯弯及20 个压弯构件。
Design methods of concrete filled circular steel tubular beam-columns in different codes, including LRFD(1996,American),AIJ(1997,Japan),EC4(1996,Europe),CECS28:29(1992,China),DL/T (1999,China)are introduced respectively in this paper,the calculating results are compared with those of tests(including 256 axial loaded members,12 pure bending members and 106 compression-bending members).
简要介绍了美国 LRFD(1994)、日本 AIJ(1997)、欧洲 EC4(1996)和中国 CECS28:29(1992),DL/T5085-1999 (1999)设计规程中有关圆形截面钢管混凝土压弯构件计算方法的特点,并将各类方法的计算结果和搜集到的试验结果(包括256个轴压、12个纯弯及106个压弯构件)进行对比分析,结果表明,五种规程均能较好地计算构件的承载力,且偏于安全。
The effect of entrance/exit leveler roller' intermesh to plate flatness;
矫直机入/出口矫直辊压弯量对板材不平度的影响
The FEM analysis for the effect of intermesh to plate leveling deformation;
压弯量对轧件矫直变形影响的有限元分析
According to elastic-plastic theory of beam, reverse bending deflection which is composed of elastic recovery deflection, residual deflection decides roller′ intermesh.
矫直机压下模型主要由入、出口矫直辊的压弯量设定和矫直辊的弯辊量设定组成。
The mathematical model of hydraulic bending roll system has strong time-variant property and uncertainty in the control system of UC rolling mill.
UC轧机液压弯辊系统的数学模型具有很强的时变性和不确定性,是典型的非线性过程;针对UC轧机液压弯辊系统的特性,提出模糊神经网络模型参考自适应控制策略,并将其应用到液压弯辊控制系统中;仿真结果表明,模糊神经网络模型参考自适应控制能够很好的跟踪参考模型的设定,系统的响应快。
The hydraulic system of hydraulic bending roll adopts a electric hydraulic pressure servo system.
液压弯辊的液压系统，采用了电液压力伺服系统，电控系统采用了结构简单、编程方便、高可靠性的可编程序控制器，它与主机的ＷＤＰＦ分布式计算机控制系统有机地结合，组成一种新型的自动控制系统，在控制和消除板带材的中浪、边浪及瓢曲等实际问题中取得了良好的效
The hydraulic bending roll system is a basic part,its dynamic characteristic and steady characte.
液压弯辊系统是板形控制系统的最基本的环节,它的动态特性和稳态性能对于整个板形控制系统的性能起着至关重要的作用。