Alibre Design

Chapter 19 - Alibre Motion‣ To Edit an Actuator:1. Right-click the Actuator in the Motion Explorer, and select Edit.ORDouble-click the Actuator item.‣ To Re-Name, Delete, or Suppress an Actuator:1. Right-click the Actuator in the Motion Explorer, and select the required option. SuppressedActuators are shown grayed out.Force- and Torque- Type ActuatorsIn many circumstances, simulations using these types can be the more realistic choice. Actuators ofthese types may be opposed by springs, dampers, and the inertias of any driven parts in a realisticway.Forces and Torques can be defined in the following ways:• Constant Force or Torque• Harmonic (or Sinusoidally varying) Force or TorquePrescribed Motions and RotationsActuators of the Prescribed-Motion type produce the specified motion of the connected parts, nomatter what magnitude of force or torque would be required to do so in the real world. They are veryuseful for answering sizing questions like: “Assuming this part is to rotate at 5rpm, what torque wouldbe required?”, and are often used for modeling sub-sections of larger systems where the requiredoutput of the system is specified in advance, and for examining the ranges of motion of parts.Prescribed Motions can be defined in the following ways:• Constant Motion• Harmonic Motion (or Sinusoidal Motion)Some characteristics of Prescribed Motions and Rotations512