PARAM, CMSOFST

Bulk Data Entry Consider shell offsets for flexbody generation.

Parameter	Values	Description
`CMSOFST`	<YES, NO> Default = NO	PARAM, `CMSOFST` applies to Component Mode Synthesis (CMS) runs for flexbody generation. While element offsets are valid for DMIG generation, that is performing CMS with METHOD = CBN or GUYAN, they are undesirable for flexbody generation, that is performing CMS with METHOD = CC or CB, as it may introduce approximation error into the generated flexh3d file, and so in general, you will not solve these problems. However, the approximation error for plates offset by half of their thickness, such that the grids can be aligned on one side of the plate surface, is tolerable. Setting this parameter to YES will allow problems with this kind of offset to be solved.

Parameter

Values

Description

CMSOFST

<YES, NO>

Default = NO

PARAM, CMSOFST applies to Component Mode Synthesis (CMS) runs for flexbody generation.

While element offsets are valid for DMIG generation, that is performing CMS with METHOD = CBN or GUYAN, they are undesirable for flexbody generation, that is performing CMS with METHOD = CC or CB, as it may introduce approximation error into the generated flexh3d file, and so in general, you will not solve these problems.

However, the approximation error for plates offset by half of their thickness, such that the grids can be aligned on one side of the plate surface, is tolerable. Setting this parameter to YES will allow problems with this kind of offset to be solved.