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- In this paper, the large non linear FEM software MARC be used to calculate the 3D deformed distribution of the cold roll forming machine frame, slide seat and bolster plate. 摘要以大型非线性有限元软件marc为分析工具,建立接触分析模型,对冷滚轧机床机架、滑台及垫板进行三维有限元弹性接触分析,给出机床三维变形状态的定量描述。
- The FBC is a non linear system which is chaotic. 流化床燃烧系统是一个具有混沌特性的非线性动力系统;
- The stability of dissolving cavity for the low depth thin layer rock salt has been researched by the ADINA non linear finite element method. 为了延长盐矿井的寿命,避免开采带来的地面沉陷,并合理利用形成的溶腔,必须探讨岩盐水溶开采过程中影响溶腔稳定性的因素,以便即时采取有效的防治措施。
- The velocity field in blown film die was simulated by FEM method. 用有限元法对吹膜机头内熔体流动的速度场进行了模拟。
- A new type of non linear self repairing control strategy based on model following method using radial basis function (RBF) neural networks is presented. 提出一种基于径向基函数(RBF)神经网络的模型跟随非线性自修复控制方法。
- The expansion of coiler during hot strip coiling was simulated with FEM method. 利用有限元方法对带钢卷取过程中的卷筒胀径进行了详细的数值模拟。
- The kinetic data was measured with a non gradient reactor, The parameters of the model equation were calculated based on experimental results by the Powell non linear regression method: k 1=0 152e -62073RT , k 2=8.18e -2384RT ,k 3=0.221e -18949RT . 采用内循环无梯度反应器测定了SO2 氧化反应动力学数据 ;并利用 Powell法对动力学模型进行参数估值 ;得到 :k1=0 .;15 2 exp(- 6 2 0 73/ RT);k2 =8
- By which linear and non linear frequency response function was estimated, and nonlinear stiffness coefficient and damping coefficient of the model were optimized by least square method in this paper. 利用该方法对非线性频响函数进行估计,并利用了最小二乘法对模型的非线性刚度系数和非线性阻尼系数进行了优化。
- In this paper, using FEM method to numerical simulate the elastic wave equation. 本文采用有限元法进行弹性波方程数值模拟。
- NON LINEAR VOLTAGE DEPENDENT DISC HARGE RESISTORS By Power Development Co. Ltd[S]. 中国科学院等离子体物理研究所.;二滩水力发电厂励磁系统咨询报告[R]
- We present a FEM method for forecasting the suitable pressure on the retaining ring,which is critical in manufacturing good quality wafers. 在晶圆外部施加保持环可以把晶圆中心处和边缘处的抛光垫压平到一致高度,克服晶圆边缘的"过磨"现象。
- The present study is useful for non linear analysis,crack analysis,and overloading analysis of arch dams. 根据该模型编制了相应的程序,并对小湾拱坝进行了非线性分析、超载分析及开裂范围和开裂尺寸的研究。
- Combining with FEM method,the deposit slope stability analysis under earthquake action is performed with the response spectrum method. 采用反应谱法考虑地震作用的动力特性,使用有限元方法,分析地震作用下崩塌堆积体边坡的稳定性;
- A non linear photochromic mask layer can be utilized for super resolution optical data storage. 利用光致变色介质的非线性效应特性制成掩膜,可以实现超分辨率光存储。
- The paper uses rigid-plastic FEM method to simulate the forging processing of tractor drawbar. The simulation results is very close to the practice. 摘要对拖拉机牵引板锻造成形过程进行了刚塑性有限元数值模拟,模拟结果与实际锻造一致。
- This paper analysis the limitations of traditional optimization metheods for a kind of non linear programming(NLP). 对间歇化工过程用水网络优化提出了基于非线性规划的优化设计方法。
- By considering deflection of freezing pipes and using the FEM method,the three-dimensional temperature field of the connecting passage of Shanghai Eas. 考虑了冻结管偏斜布置的情况,利用有限元方法对上海市复兴东路隧道联络通道进行了三维温度场模拟。
- The main idea is to make full use of the decorrelation of two complex-valued vectors in generating independent components by non linear decorrelation. 结合非正则复向量的协方差矩阵和伪协方差矩阵构造出了新的代价函数,进而提出新算法,通过复非线性不相关,从混合信号中提取出复值独立分量。
- An asynchronous staggered iteration FEM method with explicit difference scheme is suggested to solve solid-liquid coupling dynamic elastoplastic problem. 提出了一个新的次塑性模型并用试验作了初步验证,建议用异步交叉迭代显式差分有限元求解固液耦合动力弹塑性问题。
- By using the wavelet transform and the non linear optimization,we calculated parameters and determined the saltation edges of the differential ECG. 微分心电信号的突变特性反映了心肌除极波前在传播过程中的临界点现象,有可能解释心电图高频成分的成因。