Structural Dynamics Analysis
Budget: $30 – $250 USD
This Project involves following six tasks:
(1) Obtain a value for the first three bending frequency of the wing analytically.
(2) Use the Rayleigh method to obtain an approximate values for first bending frequency.
Refer to the useful information below and choose as the assumed mode shape:
?(?) = 4.5?
2?
2 − ?
4
(3) Use a finite element based hand calculation to estimate the fundamental frequency.
Refer to the useful information below and the lecture notes on ‘Finite Element Method’. Use
one element only in your calculations.
(4) Use the ANSYS finite element method to obtain approximate values for the first three
bending modes and frequencies of the beam under free vibrations. Refer to the guidelines
below. Give enough detail to show how you carried out your analysis (eg – define
geometry, elements used, boundary conditions, and include some plots of your mode
shapes).
(5) Compare and comment on the results you obtain by these four approaches.
(6) Write briefly (no more than two or three paragraphs) about possible scenarios where
structural dynamics of the wing is important. Examples may be taken from both the civilian
and military aerospace sectors
(1) Obtain a value for the first three bending frequency of the wing analytically.
(2) Use the Rayleigh method to obtain an approximate values for first bending frequency.
Refer to the useful information below and choose as the assumed mode shape:
?(?) = 4.5?
2?
2 − ?
4
(3) Use a finite element based hand calculation to estimate the fundamental frequency.
Refer to the useful information below and the lecture notes on ‘Finite Element Method’. Use
one element only in your calculations.
(4) Use the ANSYS finite element method to obtain approximate values for the first three
bending modes and frequencies of the beam under free vibrations. Refer to the guidelines
below. Give enough detail to show how you carried out your analysis (eg – define
geometry, elements used, boundary conditions, and include some plots of your mode
shapes).
(5) Compare and comment on the results you obtain by these four approaches.
(6) Write briefly (no more than two or three paragraphs) about possible scenarios where
structural dynamics of the wing is important. Examples may be taken from both the civilian
and military aerospace sectors