A Movable Helicopter Tethered Hover Test Device
A technology of a test device and helicopter system, applied in the direction of aircraft component testing, etc., can solve the problems such as the inability to guarantee the accuracy of the test flight requirements, the inability to guarantee the hovering height, the meaninglessness of airport construction, etc., to achieve good engineering application prospects and improve test flight efficiency. , the effect of a long implementation cycle
Active Publication Date: 2021-08-03
HARBIN
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Problems solved by technology
[0002] In the hovering flight test of helicopters in all aircrafts, the current domestic test method adopts the free flight method. Although the test method of this method is simple, it requires a large number of test sorties and various test flight altitudes in the actual flight test process. , and due to the influence of weather conditions (such as wind, gusts), the accuracy required by the flight test cannot be guaranteed during the specific flight test process
When the rotor speed and power increase, the required hover height cannot be guaranteed
The mooring system commonly used in the world is constructed and installed at a fixed location in the airport. The implementation period is long and the area is large. It can only be used in a single fixed airport, and the platform after the test is meaningless to the construction of the local airport.
[0003] The traditional aircraft moorings all use steel cables, including the hoisting system used in the international tethered hovering system, which is also a traditional steel cable. During the helicopter tethered hovering test, strong manpower and material support are required, and a large space is required to meet the use requirements
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[0023] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0024] According to the needs of airworthiness certification, the helicopter model needs to complete the certification work of high temperature, high cold, plateau, sub-plateau and other climatic conditions. In order to facilitate the test flight at the airport under these climatic conditions and improve the test flight efficiency, a movable Helicopter tethered hovering test device, including a ground test bench and a hoisting mechanism, wherein the ground test bench is movable through the splicing of plate components, and a relatively flat runway is selected for the installation of the test bench at the corresponding airports in these environments .
[0025] Such as figure 1 As shown, the overall schematic diagram of the hovering test device of the present invention, the upper end of the hoisting device is connected with the helicopter, and the lower end of...
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The invention belongs to the technical field of aircraft hovering tests, and relates to a movable helicopter tethered hovering test device. The tethered hovering test device in the present invention consists of two parts, a ground test bench and a hoisting mechanism. The ground test bench realizes the movement of the ground test bench through splicing of board components. The hoisting mechanism includes a strong ring, a double-ring buckle, an eyebolt, a force sensor, a self-locking safety hook, and several chains of different lengths. The invention can reduce the flight test sorties, improve the accuracy of the flight test data, and complete the hovering performance test under various test flight environments, various hovering heights, rotor speeds and power requirements.
Description
technical field [0001] The invention belongs to the technical field of aircraft hovering tests, and relates to a movable helicopter tethered hovering test device. Background technique [0002] In the hovering flight test of helicopters in all aircrafts, the current domestic test method adopts the free flight method. Although the test method of this method is simple, it requires a large number of test sorties and various test flight altitudes in the actual flight test process. , and due to the influence of weather conditions (such as wind, gusts), the accuracy required by the test flight cannot be guaranteed during the specific flight test process. When the rotor speed and power increase, the required hover height cannot be guaranteed. The mooring system commonly used in the world is constructed and installed at a fixed location in the airport. The implementation period is long and the land occupation is large. It can only be used in a single fixed airport, and the platform ...
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IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 陈玉丽罗道国史立军张波宋静宇温洪雷杨春雨
Owner HARBIN