節選段落一：
Abaqus Analysis User’s Manual
Abaqus Version 6.12 ID:
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Abaqus 6.12
Analysis User’s Manual
Volume V: Prescribed Conditions,
Constraints & Interactions
Abaqus Analysis
User’s Manual
Volume V
Abaqus Version 6.12 ID:
Printed on:
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節選段落二：
Extending Abaqus Analysis Functionality
User subroutines and utilities
User subroutines: overview 18.1.1
Available user subroutines 18.1.2
Available utility routines 18.1.3
19. Design Sensitivity Analysis
Design sensitivity analysis 19.1.1
20.


節選段落三：
for t < t0
N = 2, ω = 31.416 rad/s, t0 = ?0.1614 s
A0= 0, A1 = 0.227, B1 = 0.0, A2 = 0.413, B2 = 0.0
N
n=1
with
0.00 0.10 0.20 0.30 0.40 0.50
? 0.40
? 0.20
0.00
0.20
0.40
0.60
Time
a
Figure 33.1.2–2 Periodic amplitude definition example.
33.1.2–5
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AMPLITUDE CURVES