Helicopter combined model test device

Abstract

The invention discloses a helicopter combined model test device. The helicopter combined model test device comprises a rotor wing test bench and a tail rotor test bench, a rotatable rotary table is arranged on the bottom of the rotor wing test bench, a pitch angle driving mechanism is arranged on the rotor wing test bench, the top of the rotor wing test bench is used for connecting a rotor wing ofa helicopter, the top of the tail rotor test bench is used for connecting a tail rotor of the helicopter, and the bottom of the tail rotor test bench is connected to a four-dimensional motion measuring frame. The helicopter combined model test device can realistically simulate the movement between the helicopter rotor wing, a fuselage and the tail rotor, and then the aerodynamic interference between the helicopter rotor wing, the fuselage and the tail rotor is studied; a horizontal tail, a vertical tail, a short wing, a hanging object and the like are added on a fuselage model, correspondingmeasuring devices are cooperatively arranged, the aerodynamic interference of other components such as the horizontal tail, the vertical tail, the short wing, the hanging object and the like is further studied to make up for the lack of research capability of aerodynamic interference between various parts of domestic helicopters, and a helicopter wind tunnel test research system in China is improved.

Description

technical field [0001] The invention relates to the technical field of helicopter wind tunnel tests, in particular to a helicopter combined model test device for studying the aerodynamic interference and layout optimization of single-rotor helicopters. Background technique [0002] The aerodynamic interference of the helicopter is the basic technical problem faced by the aerodynamic layout design of the helicopter. How to resolve the negative effects caused by the aerodynamic interference of the helicopter has always been the focus of attention in the aerodynamic layout of the helicopter. [0003] At present, famous foreign helicopter companies and research institutes have devoted a lot of energy to the systematic basic theory and experimental verification research on the problem of helicopter aerodynamic interference, and have formed unique aerodynamic layout technologies, which have significantly improved the comprehensive performance of helicopters. However, our country s...

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Problems solved by technology

However, our country still lacks comprehensive and in-depth research in the field of helicopter aerodynamic layout, has not yet fully grasped the flow mechanism in the phenomenon of helicopter aerodynamic interference, and lacks effective theoretical analysis methods for predicting helicopter aerodynamic interference, and there is not enough aerodynamic interference test data that can be used directly. Due to the design of the aerodynamic layout of the helicopter, it seriously restricts the independent design ability of the helicopter in our country

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