Bird Strike - Project - 2

Aim: To Simulate non linear transient bird strike simulation where the bird tries to hit the Gas turbine blades,by using LS dyna

Objective: To perform the simualtion where bird strikes the blades and calculate the stresses and Element history

Procedure:The main bird strike file was opened and it contained of various parts such as Blades,Hub,casing,and bird

The seperate K files were created for each part followed by material and Section files

1.The Model was opened in LS pre post and except the Bird part all parts were deleted and file was saved as bird.k

2.Similar procedure was followed for the Hub,Casing and Blades

3.After this material cards were created for the parts in seperate k file

The engine casing and bird were assigned mat elastic and Hub and the blades were assigned MAT024

3.After creating material cards the sect cards were created in the seperate k file

5.After this Contacts were defined for the parts in order to avoid penetration

6.After this all files were brought into one main.k file using the keyword Include

7.Then after this boundary conditions were assigned to the baldes and bird

The casing was kept fixed using SPC keyword

8.Then after this termination time was assigned to the model using control termination keyword

9.The History plots and Binary D3 Plots were introduced with a time stop of 0.1 ms

10.Finally the simulation was run using the LS Run and below is the von misses stress plotted for the Bird srike

11.The kinetic and internal energy is plotted below

12.The elemntal plastic strain was checked for the below element and plotted in fig below

12.The RC force ,Matsum,SLE out are plotted below

Conclusion: Hence the simulation was performed and all the key parameters were included in the report