Simulation method of multi-engine helicopter power system dynamic matching

Abstract

The invention provides a simulation method of multi-engine helicopter power system dynamic matching. A device according to the method provided by the invention includes a multi-engine helicopter flight simulator and a simulation control program of the multi-engine helicopter power system dynamic matching; the simulation control program of the multi-engine helicopter power system dynamic matching is installed in a main calculation computer of the multi-engine helicopter flight simulator; communication between subsystems of the multi-engine helicopter flight simulator is performed through the Ethernet, and data exchange can be completed through adopting the TCP/IP protocol; coordinated work situations of multiple engines can be automatically matched and calculated, power matching output simulation of the multiple engines in stagnation, cool rotation, starting and spatial flight can be realized, and the fidelity of helicopter simulation can be improved; flight dynamics and kinematics mathematical models which are generally applied to helicopters are selected, and simulation of dynamic matching of the power systems of helicopters in different models can be realized through establishing performance data forms of the power systems of the helicopter in different models and design parameters of the helicopter.

Description

technical field [0001] The invention relates to a simulation method for dynamic matching of a multi-engine helicopter power system, which belongs to the technical field of flight simulation. Background technique [0002] The helicopter uses a turboshaft engine as the power system, and the rotor is driven by the power shaft to control the helicopter to perform vertical take-off and landing, hovering, side flight, inverted flight and airspace flight. Due to the demand for power and maneuverability, modern helicopters often use two or more multi-engines as the power system in design. The previous single-engine independent simulation method cannot be directly used in the simulation of multi-engine power systems. Engine or multiple engines in the starting process, airspace flight, failure special situation also involves multiple engine gas generator speed, free turbine speed and rotor speed and other mutual matching work. In the process of starting on the ground or in the air, m...

AI Technical Summary

Problems solved by technology

Due to the power and maneuverability requirements of modern helicopters, two or more multi-engines are often designed as power systems. The previous single-engine independent simulation methods cannot be directly used in the simulation of multi-engine power systems. The starting process of an engine or multiple engines, airspace flight, and fault conditions also involve the mutual matching of mul

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