查询词典 settlement sheet

Meanwhile, the process of stress turn over of wide sheet bending forming is described by introducing a thought of dividing the sheet into three layers, so it is more accurate and popular.

同时，借鉴分三层思想，较好地考虑了宽板在弯曲成形过程中部分纤维层应力反号过程，因此具有较好的精确性和较强的普适性。最后，以铝板为例进行分析，发现计算值和实验值吻合较好。

The simulation results show that the distribution of longitudinal residual stress along the width of sheet is asymmetrical, and the residual distortion corresponds well with experimental results both in distortion pattern and deformation values on the whole sheet.

利用该模型可以得到不对称的纵向残余应力结果，残余变形的趋势在整块板上都与实验结果相同，而且变形量和实验测量值之间的误差在20%以内。

Based on the preliminary study on LSF, this paper studied characteristics of laser shock forming in detail, analyzed primary factors which affect the deformation of sheet metal, measured distribution of residual stress in deformed sheet metal, and simulated the process of laser shock forming.

本文在激光冲击成形初步研究的基础上，系统研究了激光冲击下板料的变形特性、影响板料变形大小的主要因素、变形区残余应力的分布，最后利用有限元分析软件对激光冲击成形过程进行了模拟，对相关理论参数进行了修正。

By means of the FEM, this paper analyzes in detail the stress and strain distribution in sheet metal and its varying tendency of thickness and height during cup hydrodynamic deep drawing, and sums up the roles of soft bead and cavity pressure contribution on sheet metal forming.

研究和分析了在不同成形条件下板料内部应力应变的分布、厚度的变化趋势等，总结出软拉深筋和充液室液体压力对提高板料成形极限的作用。

Through building the FSW heat source model of 4 mm sheet 7075 aluminum alloy, the thermo-mechanical numerical analysis for the temperature field and stress-strain field in the process of FSW was carried out using ANSYS, the distribution of the temperature field and surface residual stress of the sheet aluminum alloy FSW was interpreted.

本文通过建立4 mm薄板7075铝合金搅拌摩擦焊热源模型，利用ANSYS对搅拌摩擦焊接过程中的温度场和应力应变场进行热机耦合数值分析，解释了薄板铝合金搅拌摩擦焊的温度场和表面残余应力的分布。

Based on Hill' elastic-plastic instability theory,the velocity field for sheet instability which is caused by the shear stress during sheet metal forming is developed,and the theoretical formula of the wrinkling critical shear stress is proposed.

以Hill关于弹塑性失稳理论为基础，建立了剪应力起皱失稳的速度场分布，给出了临界起皱剪应力理论计算结果，分析了板料屈服强度、硬化指数、板厚方向性指数及板料厚度对临界剪应力的影响，并与实验和数值模拟结果进行了对比。

As one of key problems urgent to be resolved in the fields of mechanics, material science and sheet metal forming, constructing reasonable yield criterion, work-hardening law and stress-strain relationship is very important for predicting distribution of stress and strain in sheet metal forming, as well as for improving FEA simulation precision and resolving engineering problems.

各向异性板料的屈服准则、塑性变形强化规律以及应力应变关系的合理建立，对于准确预测板料成形过程中应力应变分布，提高板料成形有限元模拟精度，以及精确解析板料成形工程问题等方面具有重要的意义，这一基础性的研究一直是力学界、材料界、板料成形领域致力研究的关键问题。

The inefficiency problem during cold rolling of titanium sheet without tension exerted on it was investigated. The state equation of stress of titanium sheet under tensional effect is deduced on the basis of Hill's anisotropic yield criterion in combination with the anisotropic characteristics of titanium s mechanical properties.

针对钛板在无张力条件下冷轧效率低下的问题，首先结合钛材力学性能各向异性的特点，以Hill异性屈服准则为基础，推导出钛板在张力冷轧下的应力状态方程，从而在理论上阐明，钛板在张力条件下进行冷轧的可行性主要取决于其塑性变形条件及其所处的应力状态。

The reasonable choice of material, proper solution of thermal expansion problem with tube sheet stress analysis and reasonable structure design must be considerable in the design of tube sheet type methanol synthesis converter.

管壳式甲醇合成塔的设计必须重视合理选材，解决好热膨胀问题与管板应力分析，及结构合理设计。

The effect of punch virtual velocity and sheet virtual density on the sheet strain energy was studied in this paper.

从理论上分析了凸模虚拟速度和板料虚拟密度对薄板变形能的影响。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。