Understanding Mass Properties
Understanding Mass Properties
(OP)
I have a question about the data shown when you look at Mass Properties in an Assembly. I am trying to get CG of a rotating assembly, along with plotting the axes and moments of inertia, as sub-components of the assembly are incrementally moved away from the central axis and then suppressed.
I have noticed that the Density of my assembly is changing in Mass Props. It had dropped from .300 to .241 pounds per cubic inch. Is this due to the suppression of sub-components, and this displayed Density being only an average?
I have noticed that the Density of my assembly is changing in Mass Props. It had dropped from .300 to .241 pounds per cubic inch. Is this due to the suppression of sub-components, and this displayed Density being only an average?






RE: Understanding Mass Properties
Harold
SW2009 SP1.0 OPW2009 SP0 Win XP Pro 2002 SP3
Dell 690, Xeon 5160 @3.00GHz, 3.25GB RAM
nVidia Quadro FX4600
www.lumenflow.com
RE: Understanding Mass Properties
RE: Understanding Mass Properties
Harold
SW2009 SP1.0 OPW2009 SP0 Win XP Pro 2002 SP3
Dell 690, Xeon 5160 @3.00GHz, 3.25GB RAM
nVidia Quadro FX4600
www.lumenflow.com
RE: Understanding Mass Properties
I only see Density for a part, not an assy. Are you sure it's not a multi-body part?
Or is this the new style assy which has virtual components?
RE: Understanding Mass Properties
-handleman, CSWP (The new, easy test)
RE: Understanding Mass Properties
Harold, no worries.
Handleman, mass/volume is what I suspect the Density value is showing. Fairly useless, I just wanted to double-check I wasn't going crazy.