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MSC.Marc 2013.1理论手册
MSC.MARC是功能齐全的高级非线性有限元软件，具有极强的结构分析能力。可以处理各种线性和非线性结构分析包括：线性/非线性静力分析、模态分析、简谐响应分析、频谱分析、随机振动分析、动力响应分析、自动的静/动力接触、屈曲/失稳、失效和破坏分析等ContentsMarc Volume A: Theory and User InformationrefaceAbout this manual■■■■20Purpose of volume A20Contents of volume a20How to Use this manual211 The Marc SystemMarc Programs............■■23Marc for Analysis23Mentat or patran for gul24Structure of marc24Procedure Library24Material Library24Element Library25Program Function Library25Features and benefits of marc252 Program InitiationMarc Host Systems27Workspace Requirements27Marc Workspace Requirements27File Units30Program Initiation.........32Examples of running marc Jobs■■■■■344 Marc Volume A: Theory and User Information3 Data EntryInput Conventions38Input of List of Items39Examples of lists41Table Driven Input■■41Table Input42Parameters46Model Definition Options46History Definition Options46REZONE Option474 Introduction to mesh definitionDirect Input49Element Connectivity Data49Nodal coordinate data53Activate/Deactivate54User Subroutine Input54MESH2D54Block definition54Merging of Nodes54Block Types55Symmetry, Weighting, and Constraints57Additional Options58Mentat58FXORD Option59Major classes of the fXoRD Option59Recommendations on Use of the FXORD Option63Incremental mesh generators■■■■■63Bandwidth Optimization64Rezoning.....64Substructure65Technical Background66Scaling Element Stiffness67Contents 5BEAM SECT Parameter■■■68Orientation of the Section in Space68Definition of the section68Error Analysis74ocal AdaptivityNumber of Elements Created7474Boundary Conditions75Location of new nodes76Adaptive Criteria77Automatic Global remeshing80Remeshing criteria84Remeshing TechniquesPatran Tetrahedral mesher885 Structural Procedure LibraryLinear Analysis99Accuracy100Error estimates100Adaptive meshing101Fourier Analysis101Nonlinear Analysis104Geometric nonlinearities108Eulerian FormulationArbitrary Eulerian-Lagrangian(AEL) Formulation118Nonlinear Boundary Conditions118Buckling Analysis120Perturbation Analysis121Computational Procedures for Elastic-Plastic Analysis126Creep138Viscoelasticity142Viscoplasticity143Fracture Mechanics144Linear fracture mechanics144Nonlinear fracture mechanics147Numerical Evaluation of the J-integral148Numerical Evaluation of the Energy Release Rate with the VCCT Method150Automatic Crack PropagationDynamic Fracture Methodology1626 Marc Volume A: Theory and User InformationDynamic crack Propagation..162Crack Initiation163Mesh Splitting165Mesh Splitting Along Edges or Faces165Mesh Cutting167Dynamics...168Modal(Eigenvalue) Analysis.168Harmonic Response172Spectrum Response75Transient Analysis179Inertia relief191Rigid Body Mode Evaluation.191Rigid-Plastic Flow195Steady State Analysis95Transient Analysis196Technical background..196Superplasticity197Soil Analysis199Technical formulation200Mechanical Wear.,,,,,,,,203Design Sensitivity Analysis........■■205Theoretical considerations207Design Optimization208Approximation of Response Functions Over the Design Space..209Improvement of the Approximation211The Optimization algorithmMarc User Interface for Sensitivity Analysis and Optimization212Define Initial State with Results from a Previous Analysis215Pre state215Model sections217Steady State Rolling Analysis219Kinematics219lnetⅰaE仟fect...221Rolling Contact221Steady state rolling with marc221ContentsStructural Zooming Analysis.222Element Types Supported223Uncoupled Thermal Stress Analysis223Cure-Thermal-Mechanically Coupled Analysis224Cure Kinetics225Cure Shrinkage Strain228References,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2296 Nonstructural Procedure LibraryHeat Transfer234Thermal Contact235Convergence Controls235Steady state Analysis236Transient Analysisemperature Effects238Initial Conditions239Boundary Conditions239Surface Energy243Thermochemical Ablation and Surface Energy Balance244Mathematical Presentation244Mechanical Erosion251Mechanical Erosion by Other Actions251pyrolySis251Coking255Monitoring Thermal Degradation258Presentation of the Energy Equation260Ablation262Welding27Radiation278Conrad Gap292Channel293Output294Diffusion295Technical Background296Hydrodynamic Bearing300Technical Background3028 Marc Volume A: Theory and User InformationElectrostatic Analysis304Technical Background305Magnetostatic Analysis308Technical background..309Magnetodynamic Analysis∴∴320Technical Background322Piezoelectric Analysis325Technical Background326Strain Based Piezoelectric Coupling..328Acoustic Analysis328Rigid Cavity Acoustic Analysis328Technical Background329Fluid mechanics330Finite element formulation333Penalty Method335Steady State Analysis336Transient Analysis336Solid Analysis336Solution of Coupled Problems in Fluids..336Degrees of Freedom337Element Types.337Coupled Analyses∴..■量■画■■■,,,,,,,,339Thermal Mechanically Coupled Analysis341Coupled Acoustic-Structural AnalysisFluid/Solid Interaction- Added Mass Approach342346Coupled Electrostatic-Structural Analysis348Coupled Magnetostatic-Structural Analysis350Coupled Thermal-Electrical Analysis (Joule Heating)352Coupled Electrical-Thermal-Mechanical Analysis355Coupled Magnetostatic-Thermal Analysis357Coupled Magnetodynamic-Thermal Analysis358Coupled Magnetodynamic-Thermal-Structural Analysis..359References∴,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,362Contents 97 Material LibraryLinear Elastic Material365Composite Material ......367Layered Materials368Classical Lamination Theory for Multi-Layered Shells371Material Preferred direction372Material Dependent Failure Criteria376Interlaminar Shear for Thick Shell, Beam, Solid shell, and 3-d Composite brick elements394Interlaminar Stresses for continuum composite elements397Progressive Composite Failure397Mixture model399Gasket403Constitutive model403Nonlinear Hypoelastic Material407Thermo-Mechanical Shape Memory Model422Transformation Induced deformation424Constitutive Theory425Phase Transformation strains425Experimental Data Fitting for Thermo-mechanical Shape Memory Alloy427Mechanical Shape Memory Model431Conversion from Thermo-Mechanical to Mechanical SMA oyExperimental Data Fitting for Mechanical Shape Memory alle434435Elastomer436Updated Lagrange formulation for nonlinear elasticity455Time-independent Inelastic Behavior456Yield Conditions458Mohr-Coulomb Material(Hydrostatic Stress Dependence)464Buyukozturk Criterion(Hydrostatic Stress Dependence)465Powder material465Obtaining Crush Curve and Shear Failure Parameters by Curve Fitting in Marc475Work or strain hardening.....,,,479Flow rule485Constitutive Relations486Time-independent Cyclic Plasticity489Time-dependent Inelastic Behavior492Creep(Maxwell Model)翻495Oak Ridge National Laboratory Laws50010 Marc Volume A: Theory and User InformationSwelling.501Viscoplasticity502Time-dependent Cyclic Plasticity502Anand solder model504Viscoelastic Material505Bergstrom-Boyce Model516Narayanaswamy Model518Frequency-dependent Material Behavior522Viscoelastic Material Behavior in the Frequency Domain522Thermo-Rheologically Simple Material Behavior in the Frequency Domain538Deformation Dependent Relaxation in the Frequency Domain539Harmonic Equations of motion541Performing viscoelastic Analysis in the Frequency Domain543Temperature Effects and Coefficient of Thermal Expansion,546Piecewise Linear Representation547Temperature-Dependent Creep548Coefficient of Thermal Expansion549Time-Temperature-Transformation549Low Tension Material552Uniaxial Cracking Data552LoW Tension Cracking552Tension Softening552Crack Closure553Crushing553Analysis554Soil model554Elastic Models554Cam-Clay Model555Evaluation of soil parameters for the critical state soil model557Damage Models565Ductile metals565Elastomers568Cohesive Zone Modeling570Nonstructural materials578Heat transfer analysis579Piezoelectric Analysis579Thermo-Electrical Analysis579Coupled Electrical-Thermal-Mechanical Analysis579Hydrodynamic Bearing AnalysisFluid/ Solid Interaction Analysis- Added Mass approach579.579
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SVPWM电压电流双闭环整流控制matlab/simulink仿真(Rectifier.mdl)
采用电压外环与电流内环的栓双闭环控制，产生svpwm控制，simulink仿真，整流器，设计abc/dq变换
- 2020-04-28下载
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2017最全华为机试题C/C++（含答案源码）
2017最全华为机试题C/C++（含答案源码)，包含111道上机考试题，欢迎下载，觉得资源好请好评。分别将字符串中的字符转换成整型数字,进行计算后,再转换成字符类型存储起来数为其中和是输入,是的长度,是的长度。是输出4.删除子串,只要是原串中有相同的子串就删掉,不管有多少个,返回子串个数输出删除后的字符串删除子串5.约瑟夫环是一个数学的应用问题:已知n个人(以编号1,2,3..n分别表示)围坐在一张圆桌周围。从编号为k的人开始报数,数到m的那个人出列:他的下一个人又从1开始报数,数到m的那个人又出列;依此规律重复下去,直到圆桌周围的人仝部出列。6.比较一个数组的元素是否为回文数组比较两个数组,要求从数组最后一个元素廾始逐个元素冋前比较,如果2个数组长度不等,则只比较较短长度数组个数元素。请编程实现上述比较,并返回比较中发现的不相等元素的个数比如:数组{1,3,5}和数组77,21,1,3,5}按题述要求比较,不相等元素个数为0数组{1,3,5}和数组:77,21,1,3,5,7按题述要求比较,不相等元素个数为3要求实现函数int array compare(int len1, int array1[], int len2, int array2[l输入】 int len1:输入被比较数组1的元素个数;int array l[]:输入被比较数组1;int lcn2:输入被比较数组2的元素个数;int array2L]:输入被比较数组2【输出】无【返回】不相等元素的个数,类型为int小例1)02: int array1[ =11,3, 5, int len1=3, int array 2=77, 21, 1, 3, 51int e函数返回:02)输入: int array1[]=:1,3,5),int1en1=3, int array2={7,21,1,3,5,7int lend6函数返回:3约瑟大环变种:输入一个由随机数组成的数列(数列中每个数均是大于0的整数,长度已知),和初始计数值m。从数列首位置开始计数,计数到m后,将数列该位置数值替换计数值m,并将数列该位置数值出列,然后从下一位置从新开始计数,直到数列所有数值出列为止。如果计数到达数列尾段,则返回数列首位置继续计数。请编程实现上述计数过程,同时输出数值岀列的顺序比如:输入的随机数列为:3,1,2,4,初始计数值m-7,从数列首位置开始计数(数值3所在位置)第一轮计数出列数字为2,计数值更新m2,出列后数列为3,1,4,从数值4所在位置从新开始计数第二轮计数出列数字为3,计数值更新m3,出列后数列为1,4,从数值1所在位置开始计数第三轮计数出列数字为1,计数值更新m=1,出列后数列为4,从数值4所在位置开始计数最后一轮计数出列数字为4,计数过程完成。输出数值出列顺序为:2,3,1,4。要求实现函数id array iterate(int len, int input array [, int m, int output array [)输入】 int len:输入数列的长度;int Intput array[]:输入的初始数列intm:初始计数值【输出】 int output array[]:输出的数值出列顺序【返回】无示例输入: int input array[13,1,2,4}, int lcn4输出: output array[]2,3,1,4手机弓码合法性:问题描述:我国大陆运营商的手机号码标准格式为:国家码+手机号何,例如:8613912345678。特点如下:、长度13位2、以86的国家码打头3、手机号码的每一位都是数字。请实现手机号码合法性判断的函数要求1)如果手机号码合法,返回02)如果手机号码长度不合法,返回13)如果于机号码中包含非数字的字符,返回24)如果于机号码不是以86打头的,返回3:【注】除成功的情况外,以上其他合法性判断的优先级依次降低。也就是说,如果判断出长度不合法,直接返回1即可,不需要再做其他合法性判断。要求实现函数int verifyMsisdn (chark inMsisdn)【输入】char* inmsisdn,表示输入的手机号码字符串。【输出】无【返回】判断的结果,类型为int示例输入: inMsisdn=“869123456789“输出:无返回:1输入: msisdn=“88139123456789输出:无输入: inMsisdn=“86139123456789“输出:无返简单的四则运算问题描述:输入一个只包含个位数字的简单四则运算表达式字符串,计算该表达式的值注:1、表达式只含,,(,),四则运算符2、表达式数值只包含个位整数(0-9),且不会出现0作为除数的情况3、要考虑加减乘除按通常四则运算规定的计算优先级4、除法用整数除法,即仅保留除法运算结果的整数部分。比如8/3=2。输入表达式保证无0作为除数情况发生5、输入字符串一定是符合题意合法的表达式,其屮只包括数字字符和四则运算符字符,除此之外不含其它任何字符,不会出现计算溢出情况要求实现函数:int calculatc(int lcn, char *cxpStr输入】 int cn:字符串长度;char* cxpStr:表达式字符串【输出】无【返回】计算结果示例1)输入:char* expstr“1+4*5-8/3函数返回:192)输入:char* expStr=“8/3*3”函数返回:6
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基于mydaq的音乐播放器
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基于GSM模块与51单片机的远程控制
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WinEdt 7 完美永久注册
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