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This page covers
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follow-on
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exercises
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to
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the
...
...
...
...
.
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In
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particular,
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it
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shows
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how
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to
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add
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a
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strain
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gage
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to
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the
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ANSYS
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model
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to
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predict
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the
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strain
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that
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would
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be
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measured
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by
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a
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gage
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mounted
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on
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the
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crank
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model.
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Strain
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Gage
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Modeling
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The
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following
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video
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shows
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how
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to
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add
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a
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surface
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to
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the
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crank
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model
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to
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find
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the
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average
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strain
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over
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the
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area
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covered
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by
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a
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strain
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gauge
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mounted
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on
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the
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crank.
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The
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video
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includes
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audio
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as
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do
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other
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videos
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on
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this
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page.
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Note
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that
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you
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have
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to
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make
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the
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following
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modifications
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to
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the
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procedure
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shown
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in
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the
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video:
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- Using
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- "Automatic
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- Connections"
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- to
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- connect
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- the
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- crank
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- arm
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- and
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- the
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- gage
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- doesn't
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- always
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- work.
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- An
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- alternate
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- procedure
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- to
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- manually
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- connect
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- the
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- two
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- entities
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- is
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- shown
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- in
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- a
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- later
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- video
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- below.
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- When
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- specifying
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- the
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- edge
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- sizing
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- for
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- the
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- gage,
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- set
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- Behavior=Hard
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- as
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- in
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- the
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- snapshot
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- below.
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- Otherwise,
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- ANSYS
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- might
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- over-ride
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- your
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- edge
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- setting
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- and
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- you
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- will
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- get
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- more
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- than
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- one
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- element.
Wiki Markup {html}<iframe width="600" height="338" src="//www.youtube.com/embed/94o6t-LCzl4?rel=0" frameborder="0" allowfullscreen></iframe>{html}
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An
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- overview
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- of
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- the
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- procedure
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- followed
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- in
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- the
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- video
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- and
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- explanation
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- of
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- the
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- associated
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- steps
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- can
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- be
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- found
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- in
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...
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- from
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- MAE
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- 3272,
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- Spring
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- 2013.
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Our ANSYS Mechanical 14.0
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- model
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- with
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- a
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- strain
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- gage
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- mounted
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- can
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- be
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...
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- for
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- your
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- review.
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- Download
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- the
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- .wbpz
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- file
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- and
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- double-click
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- on
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- it
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- to
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- load
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- it
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- in
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- ANSYS
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- Workbench.
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- To
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- save
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- the
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- file
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- in
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- the
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- usual
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- .wbpj
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- format,
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- select
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- File
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- >
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- Save
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- as
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- .
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- To
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- reduce
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- the
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- file
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- size,
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- the
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- results
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- have
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- not
...
- been
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- saved.
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- You'll
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- have
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- to
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- clear
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- all
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- results
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- by
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- selecting
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- (right-click)Results
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- >
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- Clear
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- Generated
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- Data
...
- in
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- the
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- project
...
- page.
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- Then,
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- re-solve
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- in
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- ANSYS
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- Mechanical
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- (the
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- red
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- M
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- in
...
- the
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- taskbar)
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- to
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- see
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Manually Connecting Crank Arm and Gage
The above video shows how to add a connection between the crank arm and the gage using Create Automatic Connections. But this automated procedure doesn't always work. In that case, one has to connect the two entities manually using Insert > Manual Contact Region as shown in the video below.
| Wiki Markup |
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results. \\ \\ [!clear_results.png|width=350!|^clear_results.png]\\ \\ h3. Manually Connecting Crank Arm and Gage The above video shows how to add a connection between the crank arm and the gage using {color:#660099}{*}{_}Create Automatic Connections{_}{*}{color}. But this automated procedure doesn't always work. In that case, one has to connect the two entities manually using {color:#660099}{*}{_}Insert > Manual Contact Region{_}{*}{color} as shown in the video below. \\ {html}<iframe width="600" height="338" src="//www.youtube.com/embed/KhyN1puzSY0?rel=0" frameborder="0" allowfullscreen></iframe>{html} \\ h3. Meshing with Hexahedrals using the |
Meshing with Hexahedrals using the Multi-Zone
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Method
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The
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multi-zone
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method
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in
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ANSYS
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- Gives
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- hexahedral
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- or
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- box
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- elements
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- for
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- certain
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- geometries
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- Chops
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- up
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- the
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- domain
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- into
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- regions
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- which
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- can
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- be
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- "hex-meshed".
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- These
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- regions
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- often
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- have
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- a
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- shape
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- that
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- can
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- be
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- created
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- though
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- extrusion
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- The
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- default
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- meshing
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- method
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- often
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- gives
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- a
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- tetrahedral
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- mesh
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- which
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- has
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- lower
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- accuracy
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- than
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- a
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- hex
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- mesh
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- for
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- the
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- same
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- number
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- of
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- nodes.
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- The
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- advantage
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- of
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- tetrahedrals
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- is
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- that
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- you
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- can
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- mesh
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- any
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- general
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- geometry
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- while
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- pure
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- hex
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- meshes
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- can
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- be
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- created
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- only
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- for
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- some
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- geometries.
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The
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steps
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for
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using
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the
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multi-zone
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meshing
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method
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for
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the
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bike
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crank
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geometry
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are
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shown
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in
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the
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video
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below.
| Wiki Markup |
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\\ {html}<iframe width="600" height="338" src="//www.youtube.com/embed/vmVwnsO53yo?rel=0" frameborder="0" allowfullscreen></iframe>{html} \\ h3. Creating a New Coordinate System in ANSYS Mechanical If your default coordinate system is not centered on one of the holes in the crank, or you wish to learn how to define new coordinate systems inside the mechanical window, please refer to the following video: \ |
Creating a New Coordinate System in ANSYS Mechanical
If your default coordinate system is not centered on one of the holes in the crank, or you wish to learn how to define new coordinate systems inside the mechanical window, please refer to the following video:
| Wiki Markup |
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\ {html}<iframe width="600" height="338" src="//www.youtube.com/embed/gWJlPBX3C_Y?rel=0" frameborder="0" allowfullscreen></iframe>{html} \\ \\ h1. Comments \\ {include: Accessing Piazza Discussion Paragraph} \\ {menulink:custom|link=https://piazza.com/class/hj629p862t37jm?cid=23|target=_blank}{*}Piazza Discussion - Bike Crank (Part 2)*{menulink} \\ {include:Piazza Enrollment Paragraph} [Go to all ANSYS Learning Modules|ANSYS Learning Modules] |
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