Assignment 6

Objective:-

Frontal crash-BIW

• To Check the unit system and either follow[Mg mm s] or [Kg mm ms].
• To Create appropriate interface ,friction 0.2 and recommended parameters.
• To Make sure of no penetrations and intersections.
• To Correct rigid bodies if any issues.
• To Create rigid wall with friction 0.1.
• To Compare the model weight with the full scale 300k nodes model and use added masses to reach target weight 700kg while getting CG about the required range.
• Initial velocity 35 mph.
• Use a model checker to ensure good quality.
• Time-step :0.5 to 0.1 microseconds.
• Run 80 ms.

Output requests:

• Sectional force in the rails at location of indicated node 174247.
• Axial force received on the rails from the bumper.
• Shotgun cross sectional forces.
• A pillar cross section.
• Acceleration curve received on the accelerometer at base of B pillar (on B pillar rocker).
• Intrusions on the dash wall 66695,66244.

Procedure:-

• Import the neon_front_0000.rad file in the Hypermesh and Hypercrash as well.
• 
• Go to Begin card in Hypermesh or open the neon_front_0000.rad file to check the units.
• 
• 
• Run the model checker in the hypercrash and remove the erros.
• We have to add assumed mass to the current system.
• Assumed masses are mass of the driver(80Kg), mass of the engine(200Kg), Mass at the rear considering the axle, transmission box, luggage and rear parts(250Kg).
• 
• 
• Remove the unnecessary contact interfaces and create type 7 contact interface between the components.

Note:- Kindly consider the report in the challenge assets.