RD-T: 3150 Seat Model with Dummy
This tutorial presents the different steps involved in building a simple Sled model using HyperCrash pre-processing tool.
Model Files
必要なモデルファイルのダウンロードについては、モデルファイルへのアクセスを参照してください。
Start HyperCrash
- Open HyperCrash.
- Set the User profile to RadiossV2022 and the Unit system to N_mm_s_T.
- Set User Interface style as New.
- Set your working directory to where the downloaded file is located.
- Click Run.
- Click .
- In the input window, select SEAT__00D00.rad.
- Click OK.
Merge Models
Set Model Hierarchy
Connect Models
Connect Seat Cushion to Seat Frame
Position the Dummy
Add the Seatbelt
Seatbelt versus Dummy
Create Contact Interfaces
During the seatbelt creation, two contact interfaces between the seatbelt and the dummy have been created. You will need to check and remove any remaining intersections and penetrations.
Create Seat Structure
Creation of Self-Impact between different parts of the Seat.
Create the Interface between Dummy Feet and Floor
Creation of an interface between dummy feet and the floor.
Modify Seat Cushion Mesh
Modifying the seat cushion mesh to conform to the dummy using the Seat Deformer tool.
Edit the Pre-simulation Settings
Select the Seat Parts
Review the Results and Apply the Deformed Shape
Check Initial Penetration between Seat and Dummy
Loadcase Setting
Update Initial Velocity
Update the initial velocity defined in the model to include all the nodes in the model.
Update Imposed Velocity
Update the imposed velocity on the floor to decelerate the car.
Set Boundary Conditions
To simulate the Sled Test, you need to constrain all degrees of freedom on the floor except X-direction.
Set Time History Data
Select Nodes
Select Parts
Add Interfaces
Clean the Model
- Go to Quality Module.
- Select Check All Solver Contact Interfaces.
- Make sure there are no intersections and initial penetrations; if so, fix them.
- Click Close.
- Go to Mesh Editing and clean so that all the unused materials and properties are removed.