Amphibious aircraft water take-off and landing performance modeling method for airworthiness verification
A technology for take-off and landing performance of amphibious aircraft, applied in the fields of instruments, design optimization/simulation, electrical digital data processing, etc., can solve problems such as the modeling method of amphibious aircraft water surface take-off and landing performance that has not been released, and meet the needs of engineering applications and Airworthiness verification requirements, reducing the effect of calculation corrections
Pending Publication Date: 2022-04-15
CHINA SPECIAL TYPE FLIER RES INST
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Problems solved by technology
[0003] Among the related technologies, the land aircraft take-off and landing performance modeling method is relatively mature. A performance modeling method approved by the FAA is given in the "FAA Advisory Bulletin Transport Category Aircraft Qualification Verification Flight Test Guide (AC25-7D)" However, for amphibious aircraft, there is no modeling method suitable for amphibious aircraft surface take-off and landing performance at home and abroad.
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[0032] The present invention will be further described in detail below through specific embodiments and accompanying drawings.
[0033] The present invention is based on the water take-off and landing motion characteristics and manipulation characteristics of the amphibious aircraft, such as figure 1 , analyze the water take-off and landing process of the amphibious aircraft in sections, model the different stages separately, and check the data correlation of the performance model in combination with the actual aircraft water take-off and landing performance flight test data, until the theoretical calculation results and the actual aircraft flight test results The error is less than 10%.
[0034] In the embodiment of the present invention, according to the requirements of performance-related clauses in the 25th "Airworthiness Standard for Transport Aircraft" (CCAR-25-R4) of the Civil Aviation Regulations of China, and in combination with the characteristics of water sports and...
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The invention provides an amphibious aircraft water take-off and landing performance modeling method for airworthiness verification, and belongs to the field of aircraft design. Establishing a dampening performance model; establishing a water acceleration-stop take-off performance model; and data correlation checking is carried out on each performance model in combination with real aircraft water take-off and landing performance flight test data. According to the water take-off and landing motion characteristics and control characteristics of the amphibious aircraft, the water take-off and landing process of the aircraft is reasonably simplified, the simple and effective water take-off and landing performance modeling method is provided, strict, reasonable and very tedious calculation correction can be effectively reduced, and the engineering application and airworthiness verification requirements can be met. And a reference can be better provided for water performance airworthiness verification.
Description
technical field [0001] The invention belongs to the technical field of aircraft design, and in particular relates to a water takeoff and landing performance modeling method for an amphibious aircraft used for airworthiness verification. Background technique [0002] Aircraft performance mainly includes takeoff performance, climb performance, cruise performance, hover performance, descent performance and landing performance. Aircraft performance research is an indispensable part of the aircraft design process and an important reference for aircraft operation. Take-off and landing performance is one of the important performances of transport aircraft, and it is an important part of the flight performance manual. According to the requirements of this airworthiness clause, the flight performance manual of transport aircraft must give the take-off and landing performance data of the aircraft under different conditions such as take-off and landing weight, ambient temperature, win...
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IPC IPC(8): G06F30/20G06F119/14
Inventor 刘勋揭裕文张彤曹楷吴彬黄淼
Owner CHINA SPECIAL TYPE FLIER RES INST