Alibre Design

Chapter 19 - Alibre Motion• Linear Actuator: Produces a force or motion in a particular direction, forinstance an hydraulic ram, or an electric car-window lifter.• Linear Spring: Produces a force which acts to oppose displacement in astraight line, such as an elastic band, or a car suspension spring.• Linear Damper: Produces a force which acts to oppose motion in a straightline, such as a shock-absorber. Can also model “wet” or sliding friction.You can expect nothing to happen unless at least one physical element has been added.In some circumstances, enabling gravity may be all that you require, but more often,you will need to add the motors, springs and dampers found in the mechanism you aredesigning.19.5.1 Adding Motors and Actuators, Springsand Dampers (Physical Elements)‣ To Add a Physical Element1. Right-click on a Constraint in the Motion Explorer.2. Choose Insert from the pop-up menu.3. Select from the enabled options:Note: If you have already added a Physical Element of a particular type to thatconstraint, the option will be shown disabled.A dialog opens to allow you to specify the setting for the element you are adding.536