how to add a preload of spring in Ansys workbench ls-dyna?
Recently, I am using workbench ls-dyna to simulation the drop test of a rack server. But I so confused about how to add a preload of spring in workbench ls-dyna. When I try to add the preload of spring at the setting of spring, the same as the image shows at below. it doesn't work. I want to ask, does anybody know how to add preload of spring in workbench ls-dyna?