[참조]

Simulation of the damped natural frequency of a SDOF system via Abaqus, 2022
https://www.youtube.com/watch?v=kVT1fzVcG-k

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

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[문제]
단자유도계(SDOF)의 고유진동수를 구하라.
.단위: m, kg(자중은 무시), N
.SDOF: m = 2 kg, c = 1 N.s/m, k = 4 N/m
 

(1) Part
.mass의 point를 지정 

(2) Property
.mass에 inertia를 할당

(3) Assembly
.part를 instance(실체)로 작성
 

(4) Step
.Step-1: Linear perturbation : Frequency : nfreq = 3
.Step-2: Linear perturbation : Complex frequency : nfreq = 3

(5) Interaction
.Spring, Dashpot 

(6) Load

(7) Mesh

(8) Job
.Create Job

(9) Visualization
.Result > Step/Frame
.이론해 vs 수치해석 결과