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\\ *Coupled [constraints|kb:Constraint]* and [restraints|kb:Constraint] may be modeled usingwithin {new-tab-link:http://www.csiberkeley.com/}CSI{new-tab-link} Software. While coupling often works well,, though precaution should be taken to avoid the [numerical problems|kb:Numerical problems] which may sometimes occurresult. To successfully model coupling behavior, itmultiple isjoints recommendedshould thatbe usersconnected connect multiple joints with using a [constraint|kb:Constraint], and then use[sufficiently stiff (but not too stiff) elements to|kb:Rigid behavior] objects should connect pairs of joints to the assembly of constraints. {related-incident:no=23987|comment=Fixed link connected to fixed restraints results in zero reactions in moving load analysis. See 5/29/2010 action.} {hidden-content} h2. Is there an example of how constraint coupling may cause numerical instability? *Answer:* {open-question} {hidden-content} |
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