[참조]

Abaqus 구조해석 - 고유진동수와 진동 모드 해석 (natural frequency and vibration mode), 2022
https://www.youtube.com/watch?v=TTBHanoKi_A

 
(1) Part
(2) Property
(3) Assembly
(4) Step
(5) Interaction
(6) Load
(7) Mesh
(8) Job
(9) Visualization

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[문제]
외팔보의 고유진동수와 모드형상을 구하라.
.단위: m, kg(자중은 무시), N
, 
.이론해: 0.8224, 5.1545, 14.4341 Hz

(1) Part
.L = 10 m

(2) Property
.재료: rho=2700 kg/m^3, E=70GPa, nu=0.3

.단면: WxH = 0.1 x 0.1 m
 

.단면 할당(Assign Section)
.단면 방향(Assign Beam Orientation)

(3) Assembly
Part를 Instance로 만든다.

(4) Step
.Create Step: Linear Perturbation | Frequency

(5) Interaction

(6) Load
.Create Boundary Condition

(7) Mesh
.Seed Part Instance
.Mesh Part Instance

(8) Job
.Create Job

(9) Visualization
.Plot Contours on Deformed Shape
.View > Graphics Options : Viewport Background