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Example 1. Flex Matrices The diagram below represents a two storey building. The first floor is mass 4m and its stiffnes
Posted: Sat May 21, 2022 8:20 am
by answerhappygod
- Example 1 Flex Matrices The Diagram Below Represents A Two Storey Building The First Floor Is Mass 4m And Its Stiffnes 1 (103.93 KiB) Viewed 12 times
Example 1. Flex Matrices The diagram below represents a two storey building. The first floor is mass 4m and its stiffness to motion in the horizontal direction x1 is 3k. The second floor is mass 2m and its stiffness to motion in the horizontal direction X2 is k. 2m X2 k 4m X2 3k (a) Determine the flexibility matrix. (8 marks) (b) Formulate the matrix equation of motion in terms of flexibility matrix and masses. (4 marks) (c) Use Matrix iteration to solve for the lowest natural frequency of the model. (8 marks) Show that lowest natural frequency is approx; As starting values use X1 = 1, X2 =1 Use five iterations.