Mechanical APDL Basic Analysis Guide

(Axel Boer) #1

volume number overwrites the body load specified for a lower line number, area number, or volume
number, respectively. The body load specification issue order does not matter.


Note

Any conflict detected during solid model body load transfer produces a warning similar to
the following:

***WARNING***
Body load TEMP from line 12 (1st value=77) is overwriting a BF on
node 43 (1st value=99) that was previously transferred from another
BFV, BFA, BFL or set of BFK's.

Changing the value of BFK,BFL,BFA, or BFV constraints between solutions may produce many of
these warnings at the 2nd or later solid BC transfer. These can be prevented if you delete the nodal BF
loads between solutions using BFVDELE,BFADELE,BFLDELE, and/or BFDELE.


2.5.9. Applying Inertia Loads


Use the following commands for inertia loads:


Figure 2.16: Inertia Loads Commands


Translational Application Definition
Acceleration
Vector in the
global (X,Y,Z)

Component-
based

Whole structure

ACEL x x
CMACEL x x

Rotational Motion Application Definition
User-
defined

Vector
Global in the
Origin

Compon-
ent based

Whole
structure

Velocity Acceleration
rotational
axis

global
(X,Y,Z)
OMEGA DOMEGA x x
CMOMEGA CMDOMEGA x x
CGOMGA DCGOMG x x CGLOC

There are no specific commands to list or delete inertia loads. T o list them, issue STAT,INRTIA. T o remove
an inertia load, set the load value to zero. You can set an inertia load to zero, but you cannot delete it.
For ramped load steps, inertia loads are ramped to zero. ( This is also true when you apply inertia loads.)


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