hyperworks惯性释放实例教程

3-D Inertia Relief Analysis using RADIOSS - RD-1030

An existing finite element model will be in this tutorial to demonstrate how HyperMesh may be used to set-up an inertia relief analysis. The analysis is then performed using RADIOSS and post-processed in HyperView. The figure below illustrates the structural model used for this tutorial.

Structural model with static loads and support constraints applied.

The following exercises are included:

Exercise

Step 1: Launch HyperMesh, set the RADIOSS (Bulk Data) User Profile and retrieve the model file

This loads the User Profile. It includes the appropriate template, macro menu, and import reader, paring down the functionality of HyperMesh to what is relevant for generating models in Bulk Data Format for RADIOSS and OptiStruct.

User Profiles… can also be accessed from the Preferences pull-down menu on the toolbar.

An Open file… browser window pops up.

The ie_carm.hm

database is loaded into the current HyperMesh session, replacing any existing data. •

Setting up the problem in HyperMesh •

Submitting the job •Viewing the results

unch HyperMesh.

2.Select RADIOSS in the User Profile dialog.

3.From the extended list, select Bulk Data .

4.Select the File icon

from the toolbar.

5.Select the ie_carm.hm file, located in

/tutorials/hwsolvers/radioss/.

6.Click Open .

Step 2: Create load collectors used to conduct the inertia relief analysis

In this section you will create two collectors. One for static loads and the other for constraints.

A new load collector static_loads is created.

A new load collector SPCs is created.

Step 3: Create the SUPORT1 required in the analysis

A list of load collectors pops up.

Set current load collector

The load type is modified to perform inertia relief analysis.

1.Click the Load Collector Panel toolbar button .

2.Select the create subpanel using the radio buttons on the left-hand side of the panel.

3.Click loadcol name = and enter static_loads .

4.Click color and select a color from the color palette.

5.Click the creation method switch and select no card image from the pop-up menu.

6.Click create .

7.Click loadcol name = and enter SPCs .

8.Click color and select another color from the color palette.

9.Click create .

10.Click return to go to the main menu.1.Click Set Current Load Collector panel located at the right bottom corner of HyperMesh Graphic User

Interface (GUI).

2.Select SPCs

as the current load collector. You will see SPCs appears in the field, as shown below.3.From the Analysis page, enter the constraints panel.

4.Go to create subpanel.

5.Verify the yellow entity selector is set to nodes . If not, click the switch to the left and select nodes .

6.Select the node that sits in the middle of the multi-node rigid on the foremost attachment point of the control arm to the chassis. This can be seen in the following figure as 1st constraint .

7.Check the boxes besides dof1, dof2 and dof3 and give each of them a value of 0.0. Deselect the

degrees of freedom dof4 through dof6 by clicking to uncheck the box beside each.

8.Click load type = and select SUPORT1 from the pop-up menu.

9.Click the create button.

10.Select the node at the rearward attachment point of the control arm of the chassis that can be seen in the figure as 2nd constraint applied .

11.Check the boxes besides dof2 and dof3 and give each of them a value of 0.0. Deselect the degrees of freedom dof1, dof4, dof5 and dof6 by clicking to uncheck the box beside each.

12.Click create .