Stiffness Matrix to solve for node displacements and reaction forces (Part 2/2)

Blake Tabian
Blake Tabian
55.3 هزار بار بازدید - 7 سال پیش - In this video I used
In this video I used the derived stiffness matrix to solve a 1 dimensional system with different stiffness.  We used finite element analysis approach to find the nodal displacements and support reactions.  Derivation of the stiffness matrix can be found at:

Derivation of Stiffness Matrix - Fini...

Step 1:
find individual stiffness matrices for each element.  

step 2:
create global stiffness matrix nxn.  n=number of degrees of freedom

step 3:
put in the form of [F]=[k][u]

step 4:
cross out zero rows and corresponding columns

step 5: solve for displacements

step 6:
plus displacements back into the global matrix and using matrix multiplication solve for the external reaction forces.

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7 سال پیش در تاریخ 1395/11/15 منتشر شده است.
55,357 بـار بازدید شده
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