Balked Landing

Balked Landing maneuver with Stevens's Aerodynamic model and MixedTurbofan engine

Description

This example demonstrates the go-around or balked landing of a high performance aircraft. This example uses the MixedTurbofan engine from Modelon JetPropulsion Library. The shaft power output extracted from the MixedTurbofan engine is distributed using an Airframe Mounted Accessory Drive (AMAD) which is then used to power a basic dissipative circuitry modeled using hydraulics and electrical components from Hydraulics and Electrification Library components. The bleed from the engine is dissipated using a silencer component from the Pneumatics Library.

In this experiment, the high performance aircraft is prepared for a normal landing but the landing gets aborted at the 12th second. The engine5 will increase the necessary thrust for the go-around approach.

System Setup

This example shows the basic setup of a full aircraft experiment with all the necessary components included.

  • Atmospheric conditions are set in the atmosphere component. This example uses the ISA atmosphere.
  • Controller component controls the airplane actuators (its control surfaces, thrust, and brakes), and, indirectly, its dynamic states given user specified reference inputs.
  • Aircraft components, including sizing, masses and aerodynamic models.
  • Initialization component to set the initial states of the aircraft.
  • Ground component specifying the ground conditions. Used for starting and landing interactions with the tires.
  • World component representing the inertial coordinate system using the North-East-Down (NED) orientation. It also specifies the gravity direction and global flags for visualization.

Result

Run the experiment for 55s and plot aircraft.dynamicStateBus.height and aircraft.power.engine5.cycleProperties.Fn to see the change in aircraft height and net thrust from the MixedTurbofan engine during the balked landing maneuver

Animation and important plots can be viewed.