Assignment 7-Side Pole Crash Simulation Challenge

AIM:

Side Crash-BIW

• To Check for unit system of the given Model
• To Create the interface ,friction 0.2
• To check for the penetrations and intersection exists in the given model
• To Correct rigid bodies if any issues.
• To Create rigid wall with friction 0.1
• To check and Shift the CoG of the model to the required location By adding or removing the Masses to the model upto reach the model target weight of 700kg and not exceeding the total Nodal points 300k value.
• To create Initial velocity command upto max 35 mph.
• To check the quality of crashworthiness design by using model checker command
• To implement the Time-step:0.5 to 0.1 microseconds.
• To implement the simulation with Run command maximum value: 80 ms.

Objective1:

• To Check for unit system of the given Model

The given Model Unit system is:

Kg,mm,ms

Objective2:

• To Create the interface ,friction 0.2

Interface with type 7 having friction:0.2 is created as below and recommended values are maintained.

Objective:3

To check for the penetrations and intersection exists in the given model

Penetration check tool is run and No penetration and intersection

found in the model.

Objective:4

To Correct rigid bodies if any issues.

Visually inspected the model. No Rigid body found in the system

Objective:5

• To Create rigid wall with friction 0.1

RWall Settings:

Objective:6

To check and Shift the CoG of the model to desired location.

Admass Settings:

Final Mass balance:691kg obtained

Objective7:

To create Initial velocity command upto max 35 mph

Initial Velocity setting:

Objective:8

• using model checker command

Few errors are found and did auto correction.

Objective:9

• To implement the Time-step:0.5 to 0.1 microseconds.

Settings:

Objective:10

• To implement the simulation with Run command maximum value: 80 ms.

Intrusions :

Created @B pillar,@Hinge pillar,@Fuel Tank with skews produced at exactly opposite side to study the displacements.

Peak velocity @inner door:

Peak velocity and intrusion Settings:

Outputs:

Sectional forces @cross members:

Cross member1-pink-sectional force:

Cross member Dark brown-sectional force:

B pillar displacement:

Hinge pillar displacement:

Fuel Tank displacement:

Inner door peak velocity:

Energy and mass errors:

CYCLE TIME TIME-STEP ELEMENT ERROR I-ENERGY K-ENERGY T K-ENERGY R EXT-WORK MAS.ERR TOTAL MASS MASS ADDED

78900 78.86 0.1000E-02 NODE 387197 -1.8% 0.5703E+05 0.2279E+05 25.86 -3756. 0.4463E-01 721.3 30.82

79000 78.96 0.1000E-02 NODE 202168 -1.8% 0.5705E+05 0.2277E+05 25.68 -3757. 0.4471E-01 721.3 30.87

79100 79.06 0.1000E-02 NODE 2773 -1.8% 0.5707E+05 0.2274E+05 25.78 -3758. 0.4472E-01 721.3 30.87

79200 79.16 0.1000E-02 NODE 405570 -1.8% 0.5710E+05 0.2272E+05 25.60 -3760. 0.4472E-01 721.3 30.88

79300 79.26 0.1000E-02 NODE 636 -1.8% 0.5712E+05 0.2269E+05 25.71 -3761. 0.4474E-01 721.3 30.89

79400 79.36 0.1000E-02 NODE 405570 -1.8% 0.5714E+05 0.2267E+05 25.82 -3763. 0.4475E-01 721.3 30.89

79500 79.46 0.1000E-02 NODE 229838 -1.8% 0.5716E+05 0.2265E+05 25.50 -3764. 0.4477E-01 721.3 30.91

79600 79.56 0.1000E-02 NODE 405627 -1.8% 0.5719E+05 0.2263E+05 25.40 -3765. 0.4484E-01 721.4 30.96

79700 79.66 0.1000E-02 NODE 195134 -1.8% 0.5721E+05 0.2260E+05 25.95 -3767. 0.4485E-01 721.4 30.96

79800 79.76 0.1000E-02 NODE 500591 -1.8% 0.5723E+05 0.2258E+05 25.69 -3768. 0.4485E-01 721.4 30.97

79900 79.86 0.1000E-02 NODE 232517 -1.8% 0.5725E+05 0.2255E+05 25.63 -3769. 0.4485E-01 721.4 30.97

80000 79.96 0.1000E-02 NODE 33063 -1.8% 0.5727E+05 0.2253E+05 25.69 -3771. 0.4486E-01 721.4 30.97