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首页ANSYS LS-DYNA R8.0用户手册I:详解与教程
ANSYS LS-DYNA R8.0用户手册I:详解与教程
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更新于2024-07-15
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ANSYS LS-DYNA 用户使用手册 I 是由 Livermore Software Technology Corporation (LSTC) 制作的一份详尽的技术文档,针对的是这款著名的结构动力学仿真软件的第八版(R8.0)。该手册发布日期为2015年3月23日,更新至版本6319。LS-DYNA是一款强大的数值模拟工具,广泛应用于机械工程、航空航天、汽车工业等领域,用于分析和预测复杂系统在动态载荷下的响应。
本手册涵盖了关键用户指南,旨在帮助用户充分利用LS-DYNA的功能,包括但不限于:
1. **概述**:手册首先提供了关于LS-DYNA的简介,强调其作为多体动力学和结构分析软件的特性,以及它如何处理非线性、动态和多物理问题的能力。
2. **安装与配置**:指南详细解释了如何安装、配置和运行LS-DYNA,包括软件的系统需求、许可证管理以及初始设置步骤。
3. **网格生成**:介绍创建和管理网格(有限元网格)的方法,这对于求解器性能至关重要,因为网格质量直接影响结果的精度。
4. **材料模型**:手册涵盖了各种材料模型的介绍,如线性、弹塑性、热传导等,以及如何在实际工程应用中选择合适的模型。
5. **动力学方程与求解器**:阐述LS-DYNA的力学基础,包括动力学方程、时间积分方法和求解算法,以及如何设置问题边界条件和施加载荷。
6. **接触与碰撞**:重点讲解了LS-DYNA处理碰撞、摩擦和接触效应的模块,这对于涉及运动部件交互的问题至关重要。
7. **后处理与可视化**:用户可以学习如何使用LS-PrePost等后处理工具来解读和展示仿真结果,包括图形化报告、动画和数据分析。
8. **示例与案例研究**:手册包含一系列实际工程应用的示例,供用户理解和模仿,以便在实际项目中快速上手和提高效率。
9. **安全与注意事项**:强调了使用LS-DYNA时的安全事项,以及软件可能遇到的一些常见问题及其解决方案。
10. **支持与更新**:提供了LSTC的联系方式,包括电话、传真和电子邮件,便于用户寻求技术支持和获取软件的最新更新信息。
版权声明部分强调所有内容受版权保护,并提醒用户未经许可不得复制或修改手册中的材料。此外,手册中所提及的商标、产品名和品牌均归其各自所有者所有。
ANSYS LS-DYNA 用户使用手册 I 是一个全面的参考资源,旨在帮助用户深入理解和掌握LS-DYNA软件,以解决复杂的动力学问题。通过阅读和实践手册中的指导,用户能够提高其在结构动力学模拟领域的技能。
TABLE OF CONTENTS
0-12 (TABLE OF CONTENTS) LS-DYNA R8.0
*DEFINE_DE_ HBOND ............................................................................................................. 15-124
*DEFINE_DE_INJECTION ....................................................................................................... 15-128
*DEFINE_DE_TO_BEAM_COUPLING .................................................................................... 15-130
*DEFINE_DE_TO_SURFACE_COUPLING .............................................................................. 15-132
*DEFINE_DE_TO_SURFACE_TIED ......................................................................................... 15-134
*DEFINE_ELEMENT_DEATH .................................................................................................. 15-136
*DEFINE_ELEMENT_GENERALIZED_SHELL ........................................................................ 15-138
*DEFINE_ELEMENT_GENERALIZED_SOLID ......................................................................... 15-143
*DEFINE_FILTER .................................................................................................................... 15-146
*DEFINE_FORMING_BLANKMESH........................................................................................ 15-148
*DEFINE_FRICTION ................................................................................................................ 15-154
*DEFINE_FRICTION_ORIENTATION ...................................................................................... 15-157
*DEFINE_FUNCTION .............................................................................................................. 15-164
*DEFINE_FUNCTION_TABULATED ....................................................................................... 15-166
*DEFINE_GROUND_MOTION ................................................................................................ 15-168
*DEFINE_HAZ_PROPERTIES ................................................................................................. 15-169
*DEFINE_HAZ_TAILOR_WELDED_BLANK ............................................................................ 15-171
*DEFINE_HEX_SPOTWELD_ASSEMBLY ............................................................................... 15-1 72
*DEFINE_MULTI_DRAWBEADS_IGES ................................................................................... 15-174
*DEFINE_PBLAST_GEOMETRY ............................................................................................. 15-176
*DEFINE_PLANE ..................................................................................................................... 15-178
*DEFINE_SD_ORIENTATION .................................................................................................. 15-180
*DEFINE_SET_ADAPTIVE ....................................................................................................... 15-182
*DEFINE_SPH_ACTIVE_REGION ........................................................................................... 15-183
*DEFINE_SPH_DE_COUPLING .............................................................................................. 15-187
*DEFINE_SPH_TO_SPH_COUPLING ..................................................................................... 15-189
*DEFINE_SPOTWELD_FAILURE_{OPTION} .......................................................................... 15-192
*DEFINE_SPOTWELD_FAILURE_RESULTANTS ................................................................... 15-196
*DEFINE_SPOTWELD_MULTISCALE .................................................................................... 15-198
*DEFINE_SPOTWELD_RUPTURE_PARAMETER................................................................... 15-199
*DEFINE_SPOTWELD_RUPTURE_STRESS .......................................................................... 15-202
*DEFINE_STAGED_CONSTRUCTION_PART ......................................................................... 15-204
*DEFINE_STOCHASTIC_ELEMENT_SOLID_VARIATION ...................................................... 15-206
*DEFINE_STOCHASTIC_VARIATION ..................................................................................... 15-207
*DEFINE_TABLE ..................................................................................................................... 15-212
*DEFINE_TABLE_2D ............................................................................................................... 15-215
*DEFINE_TABLE_3D: .............................................................................................................. 15-217
TABLE OF CONTENTS
LS-DYNA R8.0 0-13 (TABLE OF CONTENTS)
*DEFINE_TABLE_MATRIX ...................................................................................................... 15-219
*DEFINE_TARGET_BOUNDARY ............................................................................................ 15-223
*DEFINE_TRACER_PARTICLES_2D....................................................................................... 15-225
*DEFINE_TRANSFORMATION ............................................................................................... 15-226
*DEFINE_TRIM_SEED_POINT_COORDINATES .................................................................... 15-230
*DEFINE_VECTOR .................................................................................................................. 15-232
*DEFINE_VECTOR_NODES .................................................................................................... 15-233
EXAMPLES ............................................................................................................................. 15-234
*DEFORMABLE_TO_RIGID ..................................................................................................................... 16-1
*DEFORMABLE_TO_RIGID ........................................................................................................ 16-2
*DEFORMABLE_TO_RIGID_AUTOMATIC .................................................................................. 16-3
*DEFORMABLE_TO_RIGID_INERTIA ......................................................................................... 16-8
*EF ........................................................................................................................................................... 17-1
*EF_CONTROL ........................................................................................................................... 17-3
*EF_GRID .................................................................................................................................... 17-5
*EF_MATERIAL ........................................................................................................................... 17-6
*EF_TOGGLES ............................................................................................................................ 17-9
*ELEMENT ............................................................................................................................................... 18-1
*ELEMENT_BLANKING .............................................................................................................. 18-3
*ELEMENT_BEAM ...................................................................................................................... 18-4
*ELEMENT_BEAM_PULLEY ..................................................................................................... 18-18
*ELEMENT_BEAM_SOURCE ................................................................................................... 18-20
*ELEMENT_BEARING ............................................................................................................... 18-21
*ELEMENT_DIRECT_MATRIX_INPUT ...................................................................................... 18-25
*ELEMENT_DISCRETE ............................................................................................................. 18-28
*ELEMENT_DISCRETE_SPHERE ............................................................................................. 18-31
*ELEMENT_GENERALIZED_SHELL ......................................................................................... 18-33
*ELEMENT_GENERALIZED_SOLID ......................................................................................... 18-35
*ELEMENT_INERTIA ................................................................................................................. 18-37
*ELEMENT_INTERPOLATION_SHELL ..................................................................................... 18-40
*ELEMENT_INTERPOLATION_SOLID ...................................................................................... 18-43
*ELEMENT_LANCING............................................................................................................... 18-46
*ELEMENT_MASS .................................................................................................................... 18-54
*ELEMENT_MASS_MATRIX ..................................................................................................... 18-55
*ELEMENT_MASS_PART ......................................................................................................... 18-57
*ELEMENT_PLOTEL ................................................................................................................. 18-59
TABLE OF CONTENTS
0-14 (TABLE OF CONTENTS) LS-DYNA R8.0
*ELEMENT_SEATBELT ............................................................................................................. 18-60
*ELEMENT_SEATBELT_ACCELEROMETER ........................................................................... 18-63
*ELEMENT_SEATBELT_PRETENSIONER................................................................................ 18-65
*ELEMENT_SEATBELT_RETRACTOR ..................................................................................... 18-71
*ELEMENT_SEATBELT_SENSOR ............................................................................................ 18-76
*ELEMENT_SEATBELT_SLIPRING .......................................................................................... 18-80
*ELEMENT_SHELL ................................................................................................................... 18-86
*ELEMENT_SHELL_NURBS_PATCH ....................................................................................... 18-93
*ELEMENT_SHELL_SOURCE_SINK ...................................................................................... 18-100
*ELEMENT_SOLID .................................................................................................................. 18-101
*ELEMENT_SPH ..................................................................................................................... 18-108
*ELEMENT_TRIM .................................................................................................................... 18-110
*ELEMENT_TSHELL_{OPTION} ............................................................................................. 18-111
*EOS ........................................................................................................................................................ 19-1
*FREQUENCY_DOMA IN .......................................................................................................................... 20-1
*FREQUENCY_DOMAIN_ACCELERATION_UNIT ..................................................................... 20-2
*FREQUENCY_DOMAIN_ACOUSTIC_BEM ............................................................................... 20-4
*FREQUENCY_DOMAIN_ACOUSTIC_FEM ............................................................................. 20-14
*FREQUENCY_DOMAIN_ACOUSTIC_INCIDENT_WAVE ........................................................ 20-20
*FREQUENCY_DOMAIN_ACOUSTIC_SOUND_SPEED ......................................................... 20-21
*FREQUENCY_DOMAIN_FRF .................................................................................................. 20-22
*FREQUENCY_DOMAIN_MODE .............................................................................................. 20-29
*FREQUENCY_DOMAIN_PATH ............................................................................................... 20-31
*FREQUENCY_DOMAIN_RANDOM_VIBRATION .................................................................... 20-33
*FREQUENCY_DOMAIN_RESPONSE_SPECTRUM ................................................................ 20-45
*FREQUENCY_DOMAIN_SSD.................................................................................................. 20-50
*HOURGLASS ......................................................................................................................................... 21-1
*INCLUDE ................................................................................................................................................ 22-1
*INCLUDE_AUTO_OFFSET ........................................................................................................ 22-2
*INCLUDE ................................................................................................................................... 22-4
*INCLUDE_COMPENSATION................................................................................................... 22-17
*INCLUDE_MULTISCALE_SPOTWELD.................................................................................... 22-27
*INCLUDE_ TRIM ....................................................................................................................... 22-30
*INCLUDE_UNITCELL .............................................................................................................. 22-32
*INITIAL .................................................................................................................................................... 23-1
TABLE OF CONTENTS
LS-DYNA R8.0 0-15 (TABLE OF CONTENTS)
*INITIAL_AIRBAG_PARTICLE_POSITION .................................................................................. 23-3
*INITIAL_ALE_MAPPING ............................................................................................................ 23-4
*INITIAL_AXIAL_FORCE_BEAM ................................................................................................. 23-8
*INITIAL_DETONATION .............................................................................................................. 23-9
*INITIAL_FIELD_SOLID ............................................................................................................. 23-12
*INITIAL_FOAM_REFERENCE_GEOMETRY ............................................................................ 23-14
*INITIAL_GAS_MIXTURE .......................................................................................................... 23-15
*INITIAL_HYDROSTATIC_ALE.................................................................................................. 23-17
*INITIAL_IMPU LSE_MINE ......................................................................................................... 23-20
*INITIAL_INTERNAL_DOF_SOLID ............................................................................................ 23-24
*INITIAL_LAG_MAPPING .......................................................................................................... 23-26
*INITIAL_MOMENTUM ............................................................................................................. 23-29
*INITIAL_PWP_DEPTH ............................................................................................................. 23-30
*INITIAL_STRAIN_SHELL ......................................................................................................... 23-31
*INITIAL_STRAIN_SOLID .......................................................................................................... 23-33
*INITIAL_STRAIN_TSHELL ....................................................................................................... 23-34
*INITIAL_STRESS_BEAM ......................................................................................................... 23-35
*INITIAL_STRESS_DEPTH ........................................................................................................ 23-39
*INITIAL_STRESS_SECTION .................................................................................................... 23-41
*INITIAL_STRESS_SHELL ........................................................................................................ 23-43
*INITIAL_STRESS_SOLID ......................................................................................................... 23-48
*INITIAL_STRESS_SPH ............................................................................................................ 23-53
*INITIAL_STRESS_TSHELL ...................................................................................................... 23-54
*INITIAL_TEMPERATURE ......................................................................................................... 23-57
*INITIAL_VEHICLE_ KINEMATICS ............................................................................................. 23-59
*INITIAL_VELOCITY .................................................................................................................. 23-62
*INITIAL_VELOCITY_NODE ...................................................................................................... 23-65
*INITIAL_VELOCITY_RIGID_BODY .......................................................................................... 23-66
*INITIAL_VELOCITY_GENERATION ......................................................................................... 23-67
*INITIAL_VELOCITY_GENERATION_ST ART_TIME .................................................................. 23-70
*INITIAL_VOID ........................................................................................................................... 23-71
*INITIAL_VOLUME_FRACTION ................................................................................................ 23-72
*INITIAL_VOLUME_FRACTION_GEOMETRY........................................................................... 23-73
*INTEGRATION ........................................................................................................................................ 24-1
*INTEGRATION_BEAM ............................................................................................................... 24-2
*INTEGRATION_SHELL ............................................................................................................ 24-17
TABLE OF CONTENTS
0-16 (TABLE OF CONTENTS) LS-DYNA R8.0
*INTERFACE ............................................................................................................................................ 25-1
*INTERFACE_BLANKSIZE .......................................................................................................... 25-3
*INTERFACE_COMPENSATION_NEW..................................................................................... 25-28
*INTERFACE_COMPONENT_FILE ........................................................................................... 25-49
*INTERFACE_COMPONENT .................................................................................................... 25-51
*INTERFACE_DE_HBOND ........................................................................................................ 25-53
*INTERFACE_LINKING_DISCRETE_NODE .............................................................................. 25-56
*INTERFACE_LINKING_EDGE.................................................................................................. 25-57
*INTERFACE_LINKING_FILE .................................................................................................... 25-58
*INTERFACE_LINKING_NODE ................................................................................................. 25-59
*INTERFACE_LINKING_SEGMENT .......................................................................................... 25-61
*INTERFACE_SPRINGBACK .................................................................................................... 25-62
*INTERFACE_ SSI ...................................................................................................................... 25-67
*INTERFACE_SSI_A UX ............................................................................................................. 25-71
*INTERFACE_SSI_AUX_EMBEDDED ....................................................................................... 25-72
*INTERFACE_SSI_STATIC ....................................................................................................... 25-74
*KEYWORD ...................................................................................................................... ........................ 26-1
*LOAD ...................................................................................................................................................... 27-1
*LOAD_ALE_CONVECTION ....................................................................................................... 27-3
*LOAD_BEAM ............................................................................................................................. 27-5
*LOAD_BLAST ............................................................................................................................ 27-7
*LOAD_BLAST_ENHANCED .................................................................................................... 27-10
*LOAD_BLAST_SEGMENT ....................................................................................................... 27-16
*LOAD_BLAST_SEGMENT_SET .............................................................................................. 27-17
*LOAD_BODY ........................................................................................................................... 27-18
*LOAD_BODY_ GENERALIZED ................................................................................................. 27-23
*LOAD_BODY_POROUS .......................................................................................................... 27-27
*LOAD_BRODE ......................................................................................................................... 27-30
*LOAD_DENSITY_DEPTH......................................................................................................... 27-32
*LOAD_ERODING_PART_SET ................................................................................................. 27-34
*LOAD_GRAVITY_PART ........................................................................................................... 27-36
*LOAD_HEAT_CONTROLLER .................................................................................................. 27-38
*LOAD_HEAT_GENERATION ................................................................................................... 27-39
*LOAD_MASK ........................................................................................................................... 27-41
*LOAD_MOTION_NODE ........................................................................................................... 27-43
*LOAD_MOVING_PRESSURE .................................................................................................. 27-45
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