Experiments:

  • System modeling experiment and analysis
  • Pitch open-loop response analysis
  • Pitch PID control
  • Pitch and Roll PID control
  • Pitch and Roll-Travel cascade PID control
  • 3DOF Helicopter LQR control

The 3 DOF helicopter simulator, which has 3 Degrees of Freedom in rotation, is an educational product. It is not only of great value in the field of aviation and space flight research but also ideal for evaluating feedback strategies, such as PID, LQR, fuzzy, and anyone you wish to implement. As one of the newly recommended products, its hardware system is matched with a textbook that covers classical control, modern control, and dynamic modelling experiments in detail, so it offers the students and researchers in the fields of automation and mechatronics a unique opportunity to control the pitch and yaw of a simplified helicopter. The simulator comprises a pedestal with a long arm mounted on it. This arm carries the helicopter body on one end and a counterweight on the other. The arm can tilt around an “elevation” axis and swivel about a vertical (travel) axis. Optical encoders on these axes measure the arm’s elevation and travel. The helicopter body, located at the arm’s end, can pitch freely around the “pitch” axis, with its pitch angle measured by a third encoder. Two motors with propellers mounted on the helicopter body generate a force proportional to the applied voltage. This force lifts the helicopter body off the ground. The counterweight is adjusted to ensure the proper effective mass of the body. To prevent tangled wires and reduce friction, all electrical signals to and from the arm are transmitted via a slip ring.