A water tank having a natural frequency of 0.5 Hz is subjected to an earthquake with a sinusoidal variation of acceleration with respect to time. The earthquake has displacement amplitude of 9″and exciting frequency of 1 Hz. Determine the amplitude of displacement and acceleration at the top end of water tank. Take ζ=5%.

Q: 2. An empty elevated water tank is pulled by a steel cable by applying a 50 kN force. The tank is…

A: Given data: Force (F)=50 KNDisplacement (D)=10 cmamplitude (Ui)=5 cmU=10 cmcycle (j)=3

Q: Air flowing at 40 kPa, 210 K, and a Mach number of 3.4 impinges on a two-dimensional wedge of…

A: Assumptions made in solving the questions are: The flow is steady. Air is assumed to be an ideal…

Q: Poorly confined concrete concrete columns can be subjected to the following under extreme…

A: Introduction- Poorly confined concrete columns- These columns require smaller spacing of stirrups…

Q: Solve 11.2 analyze each structure by moment distribution determine all reactions and draw the shear…

A:

Q: A platform has mass W that weighs 15000 N is supported by a four equal fixed base column with a…

A:

Q: associated with going from one Mach number to a lower one, it is more

A: Since the shock creates an irreversible change in the flow state, the overall pressure does not…

Q: A thin plate is being pulled upward with F = 0.2 lbs through glycerin at 68°F between two stationary…

A:

FEA for Dynamic Problems

Finite element analysis or FEA is a computational tool that evaluates the approximate solution for a particular engineering problem. The tools provided by FEA help to evaluate the solutions of partial differential equations (PDEs) computationally following a numerical approach. Solutions of the PDEs can also be performed by following traditional algebraic approaches, but when the problem gets towards the complex side, it becomes very tedious and almost impossible to arrive at the solutions. In such cases, the FEA fulfills the purpose by evaluating the equations following multiple time steps and iterations. The more the time steps and iterations, the more accurate the solution. The solution plotted by FEA analysis and mathematical approaches varies asymptotically.