Contents
How can we approximate the behavior of a rigid body?
We can approximate the behavior of most structures with rigid bodies because the deformations are usually small and negligible. Even in cases when the deformations are not negligible, we can still apply the principles of equilibrium and statics to the deformed or the current configuration of the body to find out what forces the body is carrying.
How does the curve guide affect soft bodies?
The Curve Guide does not affect soft bodies. The distance from the curve, up to where the force field is effective with full strength. If you have a falloff of 0, this parameter will have no effect, because the field is effective with full strength up to Max Distance (or the infinity).
External forces on a rigid body are due to causes that are external to the body. They can cause the body to move or remain at rest as a whole. For example: Internal TENSION or COMPRESSION in a bar, bending moment in a beam. Internal forces develop in any body (not just rigid bodies) that keep all the particles of a body together.
How does a curve guide force affect particles?
A Curve Guide force affects all particles on the same layer, independently from their distance to the curve. If you have several guides in a layer, their fields add up to each other (the way you may have learned it in your physics course).
What causes a rigid body to translate or rotate?
CE297 -FA09 -Ch3 Page 1 • Any force that is applied to a rigid body causes the body to translate or ROTATE or both. • The tendency to ROTATE is caused by MOMENTS generated by the force. 3.4 -3.8 Moment of a force; Vector CROSS Product
What are the vector products of a rigid body?
• Vector products of Cartesian unit vectors, 0 0 0 × =− × = × = × = × = × =− × = × =− × = i k j j k i kk i j k j j k j i i i j i k k i j • Vector products in terms of rectangular coordinates