ArraynIt sounds like you would use a Static Structural analysis. Then you can define vertices, edges or faces where the assembly is supported and vertices where the known displacement is applied. There is a Support called Displacement and you can pick a vertex and type in the X, Y, Z values.nThe word dynamic has a special meaning in analysis, which is that the acceleration is large enough to generate significant inertia forces. If you just meant that the vertices are going to move, then what I said above is correct, but if the accelerations and velocities are large, then we can talk about that next.nThe way you idealize the geometry is important. I assume you have a solid model. It is generally a bad idea to select a vertex on a solid model and hold or displace that. The reason is that creates an unrealistically high stress because a point has no area. As the elements get smaller, the stress gets higher. nIf the bodies are thin-walled, there is a geometry idealization where you replace the solid body with a surface at the midplane of the body. Now the vertex on the corner of the surface has the thickness of the body included in the simulation so you can safely pull that vertex.nIf you don't have a thin-walled body, and keep the solid, then what you need is a small face near the location of the point you want to apply the displacement. You can use geometry editing tools to split a large face to create a small face if necessary. Then you use a Remote Displacement and select the small face. A Remote Point will be created that you can pull on without creating unrealistically high stress. The location of the remote point can be edited to be exactly where the vertex was originally located.n