hyperworks接触分析1
Workbench接触分析教程
接触分析过程
1、经验证用从其他CAD导入到Workbench的模型进行接触分析，得到的结果
偏差比较大，所以最好选择用Workbench自带的design modeler进行建模后导入simulation，用以上方法导入的模型如下左图。
2、如上图右，因为在design modeler中添加了对称，进入simulation中就会自动
施加了对称约束。
3、如上图，添加接触单元，在contact、target中添加想要的接触面。
在type中
设置为frictional，摩擦系数0.2。
4、网格划分结果如下图：
5、在静态算例添加contact tools、等效应力、合位移，如下图：
点击contact tools在左下角进行细节设置，在右侧窗口选择接触面。
在分析选项中打开大变形选项：
6、添加外圆面的径向固定约束，定义为normal to。
7、开始计算并查看结果如下图，此结果与经典ANSYS中计算的结果基本吻合。
HyperMesh常用操作技巧[1]
![HyperMesh常用操作技巧[1]](https://img.taocdn.com/s3/m/ebacabd16137ee06eff918bf.png)
HyperMesh常用操作技巧0 HyperWorks软件难点常用词句中英文对比Equivalenc：合并Free Edge Filler Surface：缺失曲面自缝合Circumference ：圆周Longitudinal：adj，纵向的，轴向的Proceed：vi，继续Criteria：n，标准Batchmesher：网格划分批处理Surface fillet midline split：曲面圆倒角中心线切割Min feature angel：最小特征角Element normal angel：法线角，用于控制单元间法线夹角的最大值Tetramesh：四面体网格Organize and cleanup fillets：圆倒角特征识别与几何清理0-1 HyperWorks中的常用难点术语1. 不完全分割面(Fin Faces)：指面上所有边界均处于同一个实体内，或者说是独立实体中的悬着面，默认呈现红色，可通过手动合并实体创建或使用内部悬着面创建实体的过程中创建；2. 完全分割面(Full Partition Faces)：指有一个或更多实体共享构成的边界面，默认呈现黄色，切割实体或者使用布尔运算合并多个实体时在共享位置或交叉位置会产生完全分割面；3. 边界面(Bounding Faces)：指定义单一实体外边界的曲面，默认呈现绿色，边界面是独立存在的并且不与其他实体所共有，一个独立的实体通常由多个边界面组成；4．自由边(Free Edges)：指被一个曲面所占用的边界，默认情况下显示红色。
在仅由曲面构成的模型中，自由边将出现在模型的外缘和控内壁位置；相邻曲面间的自由边表示这两个曲面之间存在间隙，使用automesher时会自动保留这些间隙特征；5 共享边(Shared Edges)：指相邻曲面共同拥有的边界，默认呈现绿色。
当两个曲面之间的边界是共享边，即曲面间没有间隙或者是重叠特征时，即他们是连续的，划分网格时，automesher将沿着共享边放置节点并创建连续的网格，它不会创建跨越共享边的独立单元；6. T行边(Non-manifold Edges)：指由3个或者3个以上的曲面共同拥有的边界，默认呈现黄色。
Hypermesh 2017or2019_新建接触步骤
新建目标面单元类型，设置如图 6 所示。（根据实际实际情况设置关键字，图 中仅为示例）
图 7 新建接触面单元类型 新建接触面单元类型，设置如图 7 所示。（根据实际实际情况设置关键字，图 中仅为示例）
4. 新建接触面（Contact Surface）
新建并选中接触面，点击“Elements”，如图 8，按照图 9 第三步选择吊带（红 色组件）的单元，第四步选择法向面节点（选择的节点尽量多一点），如图 10。 新建的接触面即图 11 中的青色部分。
图 13
图 14
图 15
图 16
图 17 在标签区选中新建的接触组，进行如图 18、图 19、图 20、图 21 和图 22 的设 置，到这就完成了在 Hypermesh 2017/2019 中新建接触的所有步骤。
图 18 图 19
图 20 图 21
图 22
Hypermesh 2017/2019 新建接触步骤
1. 新建材料
图1 图2
图3 根据图 1、图 2 和图 3 新建材料。
2. 新建目标面属性（Propertity）
图 4 新建目标面属性
图 5 设置实常数 按图 4 所示新建目标面属性，实常数保持）
图8 图8
图 9 选择接触面单元 图 10 选择法向面的节点
图 11 吊带的接触面 按照上述步骤新建安全座的接触面，如图 12 所示。
图 12 安全座的接触面
5. 新建接触组（Group）
按图 13 方式从主菜单中进入 interfaces 界面，并按照图 14 创建接触组,并根据 图 15、图 16 和图 17 进行操作，主面（master）对应的是接触面，从面（slave） 对应目标面。
hyperworks接触分析
好问题，学习了
报告 道具 TOP 8#
/viewthread.php?tid=932569&highlight=contactsurf 2011-5-7
hypermesh中定义接触contact的问题 - CA01：HyperMesh&HyperView--前后... 页码，6/8
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误
CONTACT interface
1 has Slave
node 900 that lies exactly on the
Master surface with OPENGAP option. Impossible to define pushout
direction.
请教下我少做了哪个步骤..谢
谢.
/viewthread.php?tid=932569&highlight=contactsurf 2011-5-7
hypermesh中定义接触contact的问题 - CA01：HyperMesh&HyperView--前后... 页码，2/8
hypermesh中定义接触contact的问题 - CA01：HyperMesh&HyperView--前后... 页码，4/8
hyperworks接触分析实例教程1
hyperworks接触分析实例教程1Pre-Processing for Pipes Impact using RADIOSS Block - RD-3520For this tutorial it is recommended that you complete the introductory tutorial, Getting Started with HyperMesh - HM-1000. Working knowledge of the creation and editing of collectors and card images are a definite pre-requisite. Familiarity with the interfaces panel, and the creation of boundary conditions are useful, although not required.ObjectiveIn this tutorial you will learn how to set up a RADIOSS input file in HyperMesh for analyzing the impact response between two pipes. The modeling steps that are covered are:Model DescriptionThe units used in this tutorial are milliseconds, millimeters and kilograms (ms, mm, kg), and the tutorial is based on RADIOSS Block 51.Pipe model ExerciseStep 1: Load the RADIOSS Block User Profile and import the modelIn the following steps, load the RADIOSS Block User Profile, then import a RADIOSS input deck containing the mesh for the two pipes.Selecting the RADIOSS User Profile sets the FE input reader to RADIOSS Block and loads theRADIOSS51 FE output template. It also loads a RADIOSS macro menu with numerous tools specific to this interface. The graphical user interface is tailored to RADIOSS users with panels such as the admas panel on the 1D page, panel names and options renamed or removed to match RADIOSS terminology.The model is loaded and is organized into two component collectors: 1 and 2 (named by HyperMesh). No materials or properties are defined at this time.Creating materials, sections, and parts for the model.?Defining the contact between the two pipes using /INTER/TYPE7.?Applying a translational initial velocity to a pipe using the /INIVEL card.?Applying local constraints to the other pipe using the /BCS card.1.Load the Radioss Block User Profile using the pull down menu Preferences > User Profile > RADIOSS(Block Format) > BLOCK90 ....2.From the files panel, select the import subpanel and import the following RADIOSS deck:/tutorials/hwsolvers/radioss/pipesd00.Notes:On import of a RADIOSS deck, any HyperMesh warning and error messages are written to a fileOn import, any RADIOSS cards not supported by HyperMesh are written to the control cardunsupp_cards . This card is accessed from the control cards panel on the BCs page and is apop-up text editor. The unsupported cards are exported with the rest of the model.Care should be taken if an unsupported card points to an entity in HyperMesh. An example of this is an unsupported material referenced by a /PART card. HyperMesh stores unsupported cards as text and does not consider pointers.On import, HyperMesh renumbers entities having the same ID as other entities. In HyperMesh, for example, all elements must have a unique ID. The message file radiossblk.msg provides a list of renumbered elements and their original and new IDs.Step 2: Understand the relationships between the /PART, /SHELL, /MAT and /PROP cards in HyperMeshA /PART shares attributes such as section properties (/PROP) and a material model (/MAT). A group of shells (/SHELL) sharing common attributes generally share a common part ID (PID).The figure below shows how these keywords are mapped to HyperMesh entities:Map to HyperMesh entities Component, property and material collectors are created and edited from the collectors panel.For the RADIOSS keyword interface, there is only one component card image and it is named Part . There are several property card images, such as P1_shell P2_truss , P14_solid . There are many material card images, such as M1_ELAST , M48_HONEYCOMB .The complete list of card images is available from the collectors panel, as you assign card images to the various types of collectors.A HyperMesh card image allows you to view the image of keywords and data lines for defined RADIOSS entities as interpreted by the loaded template. The keywords and data lines appear in the exported RADIOSS input file as you see them in the card images. Additionally, for some card images, you can define and edit various parameters and data items for the corresponding RADIOSS Block.Use the card (card editor) panel from the permanent menu to review and edit card images. Also, for many entities, their card image can be viewed and edited from the panels in which they are created.Step 3: Create a /MAT card In HyperMesh, a /MAT card is associated to a material collector. To relate it to a /PART card, the material collector needs to be assigned to a component collector.You can assign the material to the component collector as you create the component using the createsubpanel of the collectors panel. In situations where the material was not assigned to the component at the time of creation (and in this case, a dummy material is created with the same name as the componentnamed radiossblk.msg . This file is created in the folder from which HyperMesh is started. The content of the file is also displayed in a pop-up window./SHELL elem_ID part_ID> Organized into component collectors/PART part_ID prop_ID mat_ID > Component collector with a componentcard image/PROP prop_ID > Property collector with a property cardimage/MAT mat_ID>Material collector with a material cardimagecollector), update the component collector's definition by assigning the material in the update subpanel of the collectors panel.In this step, create a material collector with the M1_ELAST card image using the collectors panel. This material will be assigned to both pipes.1.Create/edit a material collector with the name elast1, and a M1_ELAST card image using the createsubpanel of the collectors panel.2.In the card previewer, click [Rho_I] to activate its field.For density, specify 7.8 E-6For Young's modulus [E], specify 208For Poisson's ratio [nu], specify 0.30Note:If you have difficulties completing any task with the creation, update or editing of collectors in this tutorial, refer to the on-line help for the collectors panel by clicking help from the permanent menu. Hint:Any collector that you mistakenly create instead of create/edit can be edited using the card image subpanel of the collectors panel.In this step, we created the material we will use for the analysis. We can now define the /PROP card that will be used to define the properties of the elements in the model.Step 4: Create a /PROP cardIn HyperMesh, the /PROP card is assigned to a property collector. To generate this card, create a property collector using either Property collector icon in the toolbar or from the pull down menu Properties > Create. The model consists of two pipes modeled with shell elements. Create a property collector witha /PROP/SHELL card that will be used for all the elements.1.Create a property collector with the name prop shell, set Type = to surface, set card image= toP1_SHELL, and Thickness = 2.5 card.2.In the card previewer for the /PROP/SHELL card, check 2.5for the shell thickness [Thick].Step 5: Assign the /PART, /MAT and /PROP cards to the elementsAssign the /PART card to the component for the coarse pipe and specify the /PROP/SHELL card ID in it.1.Load the Component Collector Update panel from either the toolbar Component collector or from thepull down menu, select Component > Create.2.Click update subpanel.3.Select the pipe 1 component.4.For card image, select PART.5.Assign the material elast1 and property prop shell.6.Click update.Repeat this procedure for pipe 2.Step 6: Create contact cardsRADIOSS contacts are created in the interfaces panel from the Analysis page or from the pull down menu, selectBCs>Create>Interfaces.A RADIOSS contact is a HyperMesh group. When you want to manipulate an /INTER card, such as delete it, renumber it, or turn it off, you need to work with HyperMesh group entities.In this step, create a contact between the two pipes using /INTER/TYPE7. The pipe with the coarser mesh (2) will be the master surface while the one with finer mesh (1) will be the slave surface. RADIOSS has multiple ways to define master andslave entity types from which to choose; in this example define the master and slave entities as components, doing this the master will be exported as /SURF/PART and the slave asa /GRNOD/PART.First create a group interface with the TYPE7card image using the create subpanel of the interfaces panel.Next, add the master and slave to the group using the add subpanel. Lastly, edit the group’s card image using the card image subpanel, and specify a friction coefficient.Automatically TYPE7 is selected for card image.In this step, we defined the contact between the two pipes as /INTER/TYPE7.Creating boundary conditions for a deck in RADIOSS Block can be efficiently carried out with the BC’s Manager available on the Utility Browser , which can be switched on the screen from the View pull down menu.Every load needs to be stored in a load collector with the corresponding card image. For example, store the velocity loads ina velocity load collector and boundary conditions in the respective collector.1.Create a group with the name contact and the TYPE7 card image using the create subpanel of the interfaces panel.2.From the BCs page, select the interfaces panel or from the pull down menu, select BCs > Create > Interfaces .3.Select the create subpanel.4.In the name= field, enter contact .5.For type=, select TYPE7.6.Optionally select a color.7.Click create .8.From the interfaces panel, select the add subpanel.9.Under master , set the entity type to comps :10.Click the yellow comps selector and select the coarser pipe component 2.11.Click update in the master: field, to the right of the yellow comps selector.12.For slave:, select comps .13.Click the yellow comps selector in the slave:line and select the finer mesh pipe component 1.14.In the slave: field, click update .15.Click review to graphically view the entities in the interface, the master entities of the interface are drawn in blue and the slave entities in red.16.Edit the definition of the group, using the card image subpanel to set the static coefficient to 0.10.17.From the interfaces panel, select the card image subpanel.18.Click edit to review the card image.19.Specify 0.10 for the static coefficient [FRIC].Step 7: Create an initial velocity (/INIVEL/TRA)In this step, we will apply a translational initial velocity to the coarse pipe using /INIVEL/TRA applied to a predefined set of nodes /GRNOD/PART.1.Click on BC’s Manager on the Utility browser.2.From the Boundary Conditions Manager, enter the name tran_vel and select the type as initialvelocity under the Create header.3.For creating a entity set of type GRNOD which is referred to in the INIVEL card, click on Parts button andselect the coarser pipe from the GUI (component ID 2). Click proceed.4.In the BC’s Manager, enter the initial velocity components as 0,0 and -30 for Vx, Vy and Vz fields.5.There is an option for creating/referring the initial velocity card to a local coordinate system. However ifnothing is specified, the global coordinate system is selected by default.6.There is an option to specify the size of the load display on the screen under Label Scale.7.Click the create button. Double check in the model browser for your reference that a load collector andan entity set is created.This completes the creation of an initial velocity for the pipe in the negative global Z direction.Step 8: Create a /BCS and constrain the finer mesh pipeIn this step, we will fully constrain the end nodes of the bottom pipe by using the Boundary Conditions Manager.1.In the BCs Manager under the Create subheading, enter the Name SPC and set Select type asBoundary Condition.2.Now specify the node set of type as GRNOD for the BCS card, switch the entity from parts to Nodesand select the end nodes of the bottom pipe, which are to be constrained.3.Under the Boundary condition components subheading (as illustrated below) activate all thetranslational and rotational check boxes. Click the create button. A load collector with a BCS card is Step 9: Create output definitions and control cardsA window pops up.created and applied the nodes as selected in the above steps. A corresponding node set is created.1.In the Utility menu of the solver browser, click the Engine button.2.Select the options, as shown below.Step 10: Export the modelThis concludes this tutorial. You may discard this HyperMesh model or save it for your own reference. In this tutorial we introduced some of the concepts that govern the HyperMesh interface to RADIOSS. We also use numerous panels that allowed us to do basic modeling in terms of RADIOSS such as defining contacts or boundary conditions.EXERCISE EXPECTED RESULTS3.Click Apply and Close to store the selected options for control and output.1.On Standard toolbar at the top of the HyperMesh window, click Export.2.For File:, click the foldericon and navigate to destination directory where you want to run.3.For Name , enter pipeimpact and click Save .4.Click the downward-pointing arrows next to Export options to expand the panel.5.Click Auto export engine file to export the engine file with the model file.6.Click Export to export both model and engine file.Final deformation and energy balance plotSee alsoSee HyperMesh Tutorials for a complete list of tutorials.。
hyperworks基本操作 -回复
hyperworks基本操作-回复HyperWorks是一种强大的CAE（计算机辅助工程）软件平台，广泛应用于各个工业领域中的设计和分析工作。
本文将详细介绍HyperWorks 的基本操作，帮助初学者快速上手并使用该软件进行工程设计。
第一步：软件安装和激活首先，进入HyperWorks官方网站下载最新的安装程序。
安装程序的文件名通常为“HyperWorks_XX.XX_WIN64.exe”，其中“XX.XX”表示软件的版本号。
下载完成后，点击安装程序运行，选择合适的安装路径并按照指示完成安装。
安装完成后，启动HyperWorks软件并进行激活。
在启动页面上选择“Activate”按钮，在弹出的窗口中输入您的许可证信息，并点击“Activate”按钮完成激活。
第二步：界面导航HyperWorks的界面由工作区、导航栏、工具栏和菜单栏组成。
工作区是进行模型构建和分析的主要区域，导航栏提供了访问各个模块和工具的快捷入口，工具栏可用于常用工具的快速选择和使用，菜单栏则包含了所有的功能选项。
熟悉界面后，可以开始创建新的工程或者打开现有的工程文件。
在菜单栏中选择“File”-“New”，然后选择适合的模板或者空白工程文件，点击“OK”按钮创建一个新的工程。
如果想打开现有的工程文件，选择“File”-“Open”，然后浏览到相应的文件并点击“Open”按钮。
第三步：模型创建和编辑HyperWorks提供了多种方式来创建和编辑模型，包括几何建模、导入外部文件等。
其中一个常用的模型创建工具是HyperMesh。
在导航栏中选择“HyperMesh”模块，然后在工具栏中选择适当的几何创建工具，如“Line”，“Arc”等，可以开始构建几何实体。
创建完成后，可以使用编辑工具对模型进行修改和优化。
第四步：材料定义和属性设置在分析之前，需要为材料属性进行定义和设置。
选择“Materials”模块，点击工具栏上的“New”按钮，填写相应的材料属性，如密度、弹性常数等。
接触分析注意问题
接触分析注意问题1、塑性材料和接触面上都不能用C3D20R和C3D20单元，这可能是你收敛问题的主要原因。
如果需要得到应力，可以使用C3D8I (在所关心的部位要让单元角度尽量接近90度)，如果只关心应变和位移，可以使用C3D8R, 几何形状复杂时，可以使用C3D10M。
2、接触对中的slave surface应该是材料较软，网格较细的面。
3、接触面之间有微小的距离，定义接触时要设定“Adjust=位置误差限度“，此误差限度要大于接触面之间的距离，否则ABAQUS 会认为两个面没有接触：*Contact Pair, interaction="SOIL PILE SIDE CONTACT", small sliding, adjust=0.2.4、定义tie时也应该设定类似的position tolerance:*Tie, name=ShaftBottom, adjust=yes, position tolerance=0.1 5、msg文件中出现zero pivot说明ABAQUS无法自动解决过约束问题，例如在桩底部的最外一圈节点上即定义了tie，又定义了contact, 出现过约束。
解决方法是在选择tie或contact的slave surface时，将类型设为node region, 然后选择区域时不要包含这一圈节点（我附上的文件中没有做这样的修改）。
6、接触定义在哪个分析步取决于你模型的实际物理背景，如果从一开始两个面就是相接触的，就定义在initial或你的第一个分析步中；如果是后来才开始接触的，就定义在后面的分析步中。
边界条件也是这样。
7、我在前面上传的文件里用*CONTROL设了允许的迭代次数18，意思是18次迭代不收敛时，才减小时间增量步（ABAQUS默认的值是12）。
一般情况下不必设置此参数，如果在msg文件中看到opening 和closure的数目不断减小（即迭代的趋势是收敛的），但12次迭代仍不足以完全达到收敛，就可以用*CONTROL来增大允许的迭代次数。
接触分析
面─面的接触分析之一在涉及到两个边界的接触问题中，很自然把一个边界作为“目标”面而把另一个作为“接触”面，对刚体─柔体的接触，“目标”面总是刚性的，“接触”面总是柔性面，这两个面合起来叫作“接触对”使用Targe169和Conta171或Conta172来定义2-D接触对，使用Targe170和Conta173或Conta174来定义3-D接触对，程序通过相同的实常收号来识别“接触对”。
接触分析的步骤：执行一个典型的面─面接触分析的基本步骤列示如下：1．建立模型，并划分网格2．识别接触对3．定义刚性目标面4．定义柔性接触面5．设置单元关键字和实常的6．定义／控制刚性目标面的运动7．给定必须的边界条件8．定义求解选项和载荷步9．求解接触问题10．查看结果步骤1：建立模型，并划分网格在这一步中，你需要建立代表接触体几何形状的实体模型。
与其它分析过程一样，设置单元类型，实常的，材料特性。
用恰当的单元类型给接触体划分网格。
命令：AMESHVMESHGUI：Main Menu>Preprocessor>mesh>Mapped>3 or4 SidedMain Menu>Pneprocessor>mesh>mapped>4 or 6 sided步骤二：识别接触对你必须认识到，模型在变形期间哪些地方可能发生接触，一是你已经识别出潜在的接触面，你应该通过目标单元和接触单元来定义它们，目标和接触单元跟踪变形阶段的运动，构成一个接触对的目标单元和接触单元通过共享的实常号联系起来。
接触环（区域）可以任意定义，然而为了更有效的进行计算（主要指CPU时间）你可能想定义更小的局部化的接触环，但能保证它足以描述所需要的接触行为，不同的接触对必须通过不同的实常数号来定义（即使实常数号没有变化）。
由于几何模型和潜在变形的多样形，有时候一个接触面的同一区域可能和多个目标面产生接触关系。
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在很多场合，要将若干个零件组装起来进行有限元分析，如将连杆与连杆盖用连杆螺栓连接起来，机体与气缸盖用螺栓连接起来，机体与主轴承盖连接起来。
如何模拟螺栓预紧结构更符合实际情况，是提高有限元计算精度的关键。
螺栓+螺母的连接与螺钉的连接有所不同，螺栓+螺母的连接方式比较简单，可以假设螺母与螺栓刚性连接，由作用在螺母上的拧紧力矩折算出作用在螺栓上的拉伸力F，将螺杆中间截断，在断面各单元的节点上施加预紧单元PRETS179，模拟螺栓的连接情况。
对于螺钉（双头螺栓）连接有些不一样，螺钉头部对连接件1施加压应力，接触面是一个圆环面，但栽丝的一端，连接件2受拉应力。
一种方法是在螺纹圆周上施加拉力，相当于螺纹牙齿接触部分，而且主要在前几牙上存在拉力，如第一牙承担60~65%的载荷，第二牙承担20~25%的载荷，其余作用在后几牙，但因螺纹的螺距较小，一般为1.5~2mm，而单元的尺寸为3~4mm，因此可以假定在连接件2的表面的螺纹圆周节点上施加拉力。
另一种方法是在连接件2的表面的整个螺纹截面的所有节点上施加拉力，这样可能防止圆周上各节点上应力过大，与实际情况差别较大，应为实际表面圆周各节点只承受60~65%的载荷。
比较好的处理办法是在连接件的表面单元的圆周节点上施加70%的载荷，在第二层单元的圆周节点上施加30%的载荷，但操作比较麻烦。
随着连接件1、2的内部结构和刚度不同，以及连接螺钉的个数和分布的不均匀性，连接件1、2表面的变形不一致，产生翘曲，使表面的节点有的接触，有的分离，而导致接触面的应力分布和应变分布不均匀，因此需用非线性的接触理论来讨论合件的应力问题。
若不考察螺栓头部与连接件1表面的变形，可用将螺栓与连接件1用一个公共面连接，作为由两种不同材料的构件组成一个整体。
螺钉（双头螺栓）与连接件2也用这种方法处理。
图1是一个简单的螺钉连接实体模型。
图2是用hypermesh划分网格后的模型。
图1 实体模型图2 网格模型
该模型由三个零件组成，连接件1（蓝色）、连接件2（橙色），螺钉（紫红）。
1. 建立实体模型
在PRO/E 中建立三个零件模型，见图3、4、5，并组合成合件（见图1）。