Based on TEM assumption, the electromagnetic field in typical long transmission line structures was solved with boundary element method, because of the skin effect, distributed parameter R and L were extracted at various frequencies.
在TEM波的近似下，应用边界元方法对典型的长线传输线结构中的似稳态磁场进行求解，得到了不同频率下受趋肤效应影响的传输线模型单位长度电感、电阻参数。
This paper presents a fast and efficient energy evaluation technique at system level according to frame-based real-time distributed system containing voltage variable processing element. Based on FAEE, a modified task assignment method is proposed.
本文针对包含可变电压处理单元的实时分布式系统提出了快速能耗估计算法FAEE，并在此基础上改进了低能耗分配方法。
For Southwestern Margin of Aqikekule Lake ophiolite, their field geological, petrological, minerological, petrochemical and geochemical characteristics show that:① it outcropped as tectonic slices along the near west-to-east strike Kunzhong fault and is composed of metamorphic perodotties, cumulates and volcanic rocks, in which, chromites are distributed in the upper part of metamorphic peridotites as pods, or in the lower part of cumulates as near-strata; ② metamorphic peridotites include serpentinites, chromite-bearing serpentinites, chlorite-epidote schists and chromitites, of which, chromitites have nodular and orbicular structure, and cumulates include pyroxenits, serpentinites, chromite-bearing serpentinites, chromites and metamorphically mafic rocks and only basalts are seen in volcanic rocks; ③ Cr# of chromites suggest that they formed in the SSZ and Al〓O〓 and TiO〓 of metamorphic peridotites also suggest SSZ environment; ④ metamorphic peridotites have V type and enriched LREE patterns, cumulates have from strongly depleted LREE, flat REE to enriched LREE patterns with universally striking positive Eu anomalies and basalts show flat REE or slight enriched LREE patterns with no Eu anomalies; ⑤ trace element and Sm-Nd isotope characteristics of metamorphic peridotites imply their strikingly heterogeneous mantle character ε〓(t+4.39～+26.20 and later Nb, Ta fertilization; ⑥ trace element characteristics of basalts and their tectonic diagrams show they probably formed in the rifted island arc or back-arc basin environment.
对阿其克库勒湖西南缘蛇绿岩，野外地质、岩石学、矿物学、岩石化学以及地球化学等特征表明：①该蛇绿岩以近东西向、沿昆中断裂呈构造岩片出露，由变质橄榄岩、堆晶岩和火山岩三个单元组成，其中见铬铁岩呈豆荚状产于变质橄榄岩的上部，或呈似层状产于堆晶岩的下部；②变质橄榄岩包括蛇纹岩、含铬铁矿蛇纹岩、绿帘绿泥片岩和铬铁岩等类型，其中，豆荚状铬铁矿具有结核状构造和球状构造，堆晶岩包括辉石岩、蛇纹岩、含铬铁矿蛇纹岩、铬铁岩和变质基性岩等类型，火山岩仅见玄武岩；③铬铁矿的Cr#表明其形成在俯冲带，变质橄榄岩的Al〓O〓和TiO〓成分也指示了SSZ环境；④变质橄榄岩的稀土配分型式见V型和LREE富集型两种型式，堆晶岩表现出从LREE强烈亏损、REE平坦分布到LREE富集的配分特征，并且普遍具有醒目的正Eu异常，玄武岩的稀土配分型式表现为平坦型或LREE略富集，无Eu异常；⑤变质橄榄岩的微量元素及Sm-Nd同位素特征指示了其地幔的显著不均一性ε〓(t为+4.39～+26.20以及Nb、Ta在后期的富集；⑥玄武岩的微量元素特征及构造图解表明其可能形成在裂谷岛弧或不成熟的弧后盆地环境。
In this paper, the finite element analysis of temperature fields and stress fields in the multi-pass welding of mid-thick plates is accomplished based on the ANSYS, and this paper analyzes how temperature fields in the different time and residual stress of the different directions are and explains the reasons why they are distributed like that.
本论文基于ANSYS平台，对中厚板对接多道焊的温度场和应力场的分布进行了动态模拟，分析了不同时刻的温度场分布、应力场中不同方向的残余应力的变化以及中厚板最终的变形情况。
Element As is added indirectly and distributed uniformly in aluminum melt in the form of variant base metal of Cu-As intermediate alloy.
采用了间接加入法，以异基体的Cu-As中间合金形态把As加入并均匀分布在铝液中。
The protrutive relation was set to reestablished the articulation. The geometry model constructed in CAD software was put into MSC. PATRAN to set the concrete Three-dimensional Finite Element Model. Result revealed (1) Tensile stress distributed in the posterior-upper area; molar area.(2) Compressive stress distributed in the opsile molar area and gonion area.
本研究通过模拟下颌前伸时，对下颌骨骨组织应力变化进行三维有限元分析[3 ，8] ，了解下颌骨骨组织应力分布特点，为临床矫形治疗提供理论依据。1 材料与方法1.1 建立几何模型1.1.1 病例选择选择一名年龄 12岁的男孩，X线手腕骨片显示处于生长发育高峰前期，全身发育正常。
Results showed that the magnesium element was even distributed on the surface of untreated phosphate rock; there were obviously many pores on the surface of pretreated phosphate rock and the pores may be caused by the decomposition of dolomite and the pretreated phosphate rock was made up of many small inter-connective grains, and magnesium element was not found on the surface of pretreated phosphate rock.
结果表明：处理前磷矿表面镁元素呈均匀分布，而处理后磷矿表面出现明显的孔洞，孔洞可能为白云石分解所致，并且腐蚀后磷矿由许多高度连通性的微小磷矿颗粒组成，在磷矿表面并无镁元素的存在。
An investigation was made of the ductile fracture of ferrite nodular graphite cast iron under multiaxial tensile stress using the notched cylindrical specimens with 3 different notch root radii 2, 4 and 10mm. Numerical stress and strain distributed at notch were calculated by means of the finite element method taking into account of large elastic-plastic deformation.
为研究多轴应力下铁素体球铁延性断裂机制，采用三种不同曲率半径(ρ=2，4，10mm)的缺口圆柱试样进行拉伸试验，并用大弹塑性变形有限元分析法计算试样缺口部位的应力、应变分布。
Prestressing loss of CFRP, stress/strain distribution in flange, deformation and crack distribution were studied. The results indicated that: effective width coefficient of compression top flange increased by less than 8% due to concrete cracking, long-term loading, and ordinary tension reinforcement yielding; the test value of deflection at mid-span at 1001 day was 2.322.42 times of the initial deflection, plastic deformation at 20 days after unloading was 41% of 1001 day`s; the strain of tensile reinforcement had a 65% increase than that of its initial value, and residual strain after unloading was about zero; the strain of compressed reinforcing steel bar had a 225%268% increase than that of its initial value, and residual strain at 20 days after unloading was 53% of 1001 day`s; compression strain on top plate of the box girder under long-term load increased quickly in the early stage and became stable after 2 years, and it had a 164%224% increase than that of its initial value at 1001 day; the crack width increased as time increased under long-term load, then it became stable after more or less 2 years, and it was 1.592.69 times than that of its initial value at 1001 day; most of the cracks in the bottom plate of box girder developed from middle of bottom plate, and they were wider in the middle of the bottom plate than at the bottom ends of the webs; the strain distributed over the section depth of web agreed well with plane assumption. Based on the behaviors of concrete beams prestressed with external CFRP tendons, the comformable formulars for predicting crack width of concrete box/T girder prestressed with external CFRP tendons were proposed by modifying traditional formulas in design codes for predicting the crack with of ordinary prestressed concrete beams.(5) Based on Mindlin-Reissener theories of thick plate, the fundamental geometric nonlinearity equations for flat-shell element were set up with U. L formulas. A flat-shell element was composed with the lock-free element for thick/thin plates and the four-nodded arbitrary quadrilateral finite element with in-plane rotational degree of freedom.
4通过配置体外CFRP预应力筋混凝土薄壁箱梁的短期均布荷载试验、长期持荷试验以及长期持荷后的破坏试验，研究了体外CFRP预应力筋的预应力损失、截面应力分布、变形性能及裂缝开展和分布，得到以下结论：混凝土开裂、长期持荷、体内非预应力受拉钢筋屈服等因素使翼缘有效宽度计算系数略有增加(小于8%)；持续1001 d引起的CFRP筋预应力损失仅为1.47%，卸载后比卸载前仅减小1.27%；持荷1活动房001d时L/2跨的长期挠曲变形实测值为初始变形的2.322.42倍，卸载20d后不可恢复变形为1001d变形的41%；持荷1001d受拉钢筋应变较初始值增加约65%，卸载后基本无残余应变；持荷1001d受压钢筋应变较初始值增加225%268%，卸载并恢复20d后不可恢复应变为其1001d应变的53%；持续荷载作用顶板混凝土表面压应变前期发展较快，持荷2年左右基本上趋于稳定，持荷1001d压应变较初始值增加164%224%；持续荷载作用下初始裂缝宽度随时间增加而增大，持荷2年左右裂缝宽度与长度基本上趋于稳定，持荷1001d实测裂缝宽度为初始值的1.592.69倍，卸载并恢复20d后变为不可见裂缝；箱梁底板横向裂缝一般自底板中部开展，并且在各试验阶段底板裂缝宽度沿横向分布均呈现中间宽两端窄；各试验阶段箱梁截面腹板处应变沿高度分布基本符合平截面假定。
Thereafter, the established elastic finite element model is extended to nonlinear analysis. In the aspect of geometrical nonlinearity, from the incremental virtual work equation described in the referential configuration at the moment of T=0 and T=t, geometrical stiffness matrices in TL formulation and UL formulation are deduced respectively. In the aspect of material nonlinearity, assume that the material is perfect plastic, complying with Von-Mises's yielding rule and related flowing rule. With the finite segment method, one of distributed plasticity models, where certain Guassian points are collocated along the element length and the natural coordinate of cross section, the element elasto-plastic stiffness matrix is derived by Guassian quadrature. In every incremantal step, constitutive integration is performed by the generalized midpoint method. Also, on the basis of the geometrically nonlinear model and material nonlinear model, a spatial thin-walled beam element with doubly nonlinear behavior is produced.
在几何非线性方面，由以t=0时刻和t时刻的构形为参考构形描述的增量虚功方程推得TL格式和UL格式的几何刚度矩阵；在物理非线性方面，假定材料为理想塑性体，服从Von-Mises屈服准则，其塑性应变增量服从关联正交流动法则，采用有限分割的分布塑性区模型，沿梁的轴向和截面中线的自然坐标方向布置一定数量的Guass点，由Guass数值积分求出梁单元的弹塑性刚度矩阵，在每一增量步的本构积分中，采用广义中点法进行数值积分；以上述的几何非线性模型和材料非线性模型为基础，建立了双重非线性空间薄壁截面梁单元。
Incurrent research, aiming at the rupture problem engendered in the shooting process of acertain 5.56mm automatic rifle, the strain and stress distributions on the cartridge caseunder the action of axial pull have been analyzed. Based on the theories of elastic-plasticmechanics and contact mechanics, a mathematic and physical model of the cartridge-caseand chamber system has been set up; and based on the platform of the general softwarepackage APDL of ANSYS for finite element analysis, a parameterized model of thecartridge-case and chamber system has also been established. The method for nonlinearFEA has been adopted to analyze the stress distribution on the entire cartridge-case andchamber system, and the method of contact element has been employed to investigate thecontact stress between the cartridge case and chamber, and then the influences of frictioncoefficient and locking space on the static and dynamic stress and strain response of thecartridge case and chamber to the action of power gas have also been discussed. On thebasis of a lot of numerical tests, a kind of element Plane13, which is concentrated incoupled computation of heat and construction, has been used finally to simulate thetransient response of the cartridge-case and chamber system to the power gas. Throughloading the temporary thermal characteristics of explosive gas in the procedure of emulate, the corresponding transient thermal stress distributed on the entire system under thecombined load of transient thermal stress and transient pressure has been obtained. Owingto these comprehensive considerations, the numerical results obtained in this paperrepresent the actual situations comparatively exactly.
本文针对某5.56mm自动步枪在工作中出现断壳的问题，分析了弹壳在轴向拉力作用下的应力应变；基于弹塑性力学及接触理论，建立了弹壳弹膛系统的数学、物理学模型，在通用有限元ANSYS软件的参数化建模工具APDL平台上，建立了弹壳弹膛系统的参数化模型；采用非线性有限元法计算了弹壳弹膛系统的整体应力，引入接触单元法分析弹壳和弹膛的接触压力，探讨了在不同的摩擦系数和不同的闭锁间隙对弹壳弹膛静、动态响应的影响；本文进行了大量的尝试，最后确定采用热、结构耦合单元Plane13，在计算中加载了火药气体的温度历程，成功的获得了弹壳弹膛系统在瞬态的热载荷和瞬态的压力载荷同时作用下弹壳弹膛系统的热应力数值解，考虑因素全面，比较真实的反映了弹壳弹膛系统在火药气体压力和热载荷下作用的情况。
A kind of rigorous design method of high power waveguide low-pass filters for satellites was presented. The element values for distributed low-pass prototype filter are transformed into general impedance inverters. Capacitive iris in rectangular waveguide was computed by mode-matching technique to achieve the exact scattering parameters and impedance inverters correspondingly. All dimensions of waveguide low-pass filter are obtained immediately by interpolation.
提出了一种星载高功率波导低通滤波器的精确设计方法，将滤波器分布低通原型参数转换成广义阻抗变换系数，采用模匹配法等数值算法精确计算矩形波导中容性膜片的散射参数，进而获得其广义阻抗变换系数，然后通过插值，直接得到滤波器的所有结构参数。
The reasoning formula of distributed parameter in its equivalent circuit were deduced, and then they were calculated by finite element method.
运用多导体传输线理论建立锥形绕组的多导体传输线数值分析模型，推导模型等效电路中各项分布参数的求解公式，利用有限元软件求解分布参数并进行模拟计算。
Two REE distributed pattern, LREE-depleted and flat, which display a specific character of typical mid-ocean ridge tholeiite, indicate that primary magma may be derived from near primary or a typical large ion lithophile element-depleted mantle.
岩石稀土元素配分模式可分为LREE平坦型和LREE亏损型两类，指示了其原始岩浆起源于近原始或典型的大离子元素亏损型的地幔，为典型的大洋中脊拉斑玄武岩的特征。
Based on the nonlinear finite element calculational modes, slab grid calculated modes and the methods of putting on distributed load and displacement boundary conditions, several programs are designed.
根据所采用的非线性有限元计算模式、板格计算模型、板面荷载和位移边界条件的施加方法的不同进行了几种程序的设计，并将程序运行的结果及ANSYS软件分析的结果进行了对比，论证了所用方法的合理性。
In order to study the impact on its performance of the size effect in designing axial-magnetized permanent magnet micromotor, the finite element method was adopted to simulate the magnetic field of this kind of dual rotor motor, and the flux density wave form in the airgap was distributed.
为研究尺寸效应对轴向磁化永磁电机性能的影响，采用有限元方法对双转子电机的磁场进行了仿真计算，得出了轴向磁化永磁电机转子的气隙磁密波形分布。
This paper puts forward CS roof plate finite element model and its analyse method. The analysis result indicates that the finite element model and analyse method is appropriate and makes some analyse of the CS plates with different distributed steel.
本文提出了三步节能CS屋面板有限元模型建立以及分析方法，分析结果表明本文建立的有限元模型和采用的分析方法是合理的，并利用有限元方法对其他配筋形式的三步节能CS屋面板进行了分析。
AFEM based on global error estimate rebuild mesh according to refinement factor. As a result, global error is distributed on every element and adaptive optimization method could be used on element.
基于全局误差估计的自适应有限元法根据单元细化因子对网格进行重新划分，从而使整个声场空间的误差分担到各个单元上，对单元进行自适应优化处理。
Spillover Analysis and Simulation for Distributed Piezoelectric Element Method
梁振动控制的分布压电单元法的溢出分析与仿真
Distributed piezoelectric element method for vibration control of smart plates
智能板振动控制的分布压电单元法