XANSYS Message: 3211 [Go back to message list]
[bookmark on del.icio.us]
No rating yet
Subject: Re: Self Weight! -Reply
Author: Jamie Orr
Date: 1999-07-12 07:40:00One item that sometimes causes confusion when applying gravity in
ANSYS is that the inertia load is an acceleration vector and must act "up"
in the positive Y direction. This is equivalent to the floor pushing "up" on
your feet with a force (i.e., acceleration) equal and opposite to that of
gravity. (If the floor wasn't there you would be in a free fall, and
therefore weightless).
Jamie Orr
Joy Mining Machinery
>>> "Davis, Mike" 07/12/99 02:32am
Yes, you have to apply gravity (Inertia) loads by the ACEL command to
get
self weight. In SI units (ACEL,0,0,9.81) if Z is positive up, as it has to
be with PIPE59 elements.
Mike Davis
Defence Science and Technology Organisation
Department of Defence
Salisbury
South Australia
> -----Original Message-----
> From: Ravindranath M [SMTP:ravi@g...]
> Sent: Monday, July 12, 1999 3:43 PM
> To: xansys@o...
> Subject: [xansys] Self Weight!
> From: "Ravindranath M"
> Dear Users!
> I have a doubt regarding the self weight of the
> member.In ANSYS whether by default the self weight is
> included or we have to give it through the gravity option
> coming under apply -> loads.
> Can you please clarify?
> Thanks.
> Ravindra.