...
Time-history
...
analysis
...
provides
...
for
...
linear
...
or
...
...
evaluation
...
of
...
dynamic
...
structural
...
response
...
under
...
loading
...
which
...
may
...
vary
...
according
...
to
...
the
...
specified
...
...
...
.
...
Dynamic
...
equilibrium
...
equations,
...
given
...
by
...
K
...
u(t)
...
+
...
C
...
d/
...
dt u(t)
...
+
...
M
...
d
...
2/dt u(t)
...
=
...
r(t),
...
are
...
solved
...
using
...
either
...
...
or
...
...
...
methods.
...
Initial
...
conditions
...
may
...
be
...
set
...
by
...
continuing
...
the
...
structural
...
state
...
from
...
the
...
end
...
of
...
the
...
previous
...
analysis.
...
Additional
...
notes
...
include:
...
Step
...
Size
...
– Direct-integration
...
methods
...
are
...
sensitive
...
to
...
time-step
...
size,
...
which
...
should
...
be
...
decreased
...
until
...
results
...
are
...
not
...
affected.
...
HHT
...
Value
...
– A
...
slightly
...
negative
...
...
alpha
...
value
...
is
...
also
...
advised
...
to
...
...
out
...
higher
...
frequency
...
modes,
...
and
...
to
...
encourage
...
convergence
...
of
...
nonlinear
...
direct-integration
...
solutions.
...
Nonlinearity – Material and geometric nonlinearity, including P-delta and large-displacement effects, may be simulated during nonlinear direct-integration time-history analysis.
See Also
Multi-support excitation article
Show if | ||
---|---|---|
| ||
Related Emails:
Related Incidents:
|
Related Content
Articles
Child pages (Children Display) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tutorials
Filter by label (Content by label) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Test Problems
Filter by label (Content by label) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|