Assignment 7-Side Pole Crash Simulation Challenge
Aim- To study the deformation causes by a side pole when a car hits the pole sideways, studing the forces and energy graph to see the changes
Procedure-
1 import the model in hyperworks and check the units in use
2 the open this file in hypercrash to check penetration and add mass and velocity
check all solver contact interface
check the penetration and interface
go to maas and balancing
then go to load case and add mass
right click on the added mass section and select type 1 which means mass is distributed to all nodes of the node group
add these masses in the model
check the total mass and center of gravity point
now to add initial velocity we need to go to load case and then to initial velocity
now add velocity, by creating new
now export the file from hypercrash and import it in hypermesh
creating self contact we will create type 7 contact
then edit the recommende parameters in the type 7 interface
now add a cylinderical rigid wall in the model
please change the parameters as given
it will show like this if not showing like this so please check the direction.
now create a movable frame
select the nodes and the frame is made in the respective three point
make 2 frame as shown in figure
right click and scroll down to sect then again select sect
change the recommende parameters in the section drop down menu
make to section same like movable frame
now after adding cross section now go to the model browser and add output block of the same and select both the cross section
create springs in the model
now create property for spring in the model browser
check the frequency and time in the engine file before running
tfreq = 5
t stop = 80
now run the model in radios
after saving please open the h3d file in hyperview
now time to analyse
starting with internal energy
initial internal energy is zero as the car comes in contact with the pole the internal energy increases
KINECTIC ENERGY
As the car come in contact with pole the velocity of the car decrease so thats why the kinectic energy decreases
CONTACT ENERGY
as the car comes in contact of pole the contact energy starts increasing initial its zero as there is no contact
Total energy
as the kinectic energy, total energy also decreases as it is directly proportional to velocity
total resultant force of cross section
VELOCITY
VELOCITY DECREASE AS IT COMES IN CONTACTED WITH THE POLE
a001 to a017 file unable to upload
so giving you the link
https://drive.google.com/drive/folders/1CC7R56vnQsozZS4fiS4J2ZkSguBk1igv?usp=sharing