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Computation method for mass distribution of aircraft

A quality distribution and calculation method technology, applied in calculation, special data processing applications, instruments, etc., can solve the problems of poor real-time performance, long cycle, low efficiency, etc., and achieve the effect of reducing the impact of calculation data, improving calculation accuracy and calculation efficiency

Inactive Publication Date: 2014-11-26
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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Problems solved by technology

In one fell swoop, it solves the problems of poor precision, low efficiency, long cycle and poor real-time performance in previous mass distribution analysis work

Method used

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  • Computation method for mass distribution of aircraft
  • Computation method for mass distribution of aircraft
  • Computation method for mass distribution of aircraft

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Embodiment Construction

[0019] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings. The working steps of the aircraft mass distribution calculation method based on 3D digital technology are shown in the appendix figure 1 . 1) Calculation requirements analysis

[0020] a) Aircraft state: strength calculation state, mass composition see appendix figure 2 ;

[0021] b) Segment grid: established according to the nodes of the finite element model;

[0022] c) Centralized quality processing method: provide quality characteristics separately;

[0023] d) Uniform quality processing method: perform segmentation calculation and quality distribution according to the grid;

[0024] e) Coordinate system: use the space rectangular coordinate system calculated by the center of gravity of the aircraft.

[0025] 2) Raw data collection:

[0026] The parts of the whole machine can be divided into solid model and non-solid...

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Abstract

The invention provides a computation method for mass distribution of an aircraft, and belongs to the engineering field of aircraft weight. The computation method is characterized by comprising the steps of analysis of computation requirements, collection of original data, classified computation and summarization of the data. Data of mass distribution of the full aircraft can be obtained. The computation method has the advantages that digitization engineering application of computational analysis of mass distribution of the aircraft is achieved; the computational accuracy and the computational efficiency are greatly improved compared with a traditional method; the computation result does not rely on engineering application experience of engineers, and therefore influence of human factors on the computation data is reduced.

Description

technical field [0001] The invention provides an aircraft mass distribution calculation method based on three-dimensional digital technology, belonging to the field of aircraft weight engineering. Background technique [0002] Divide the continuous aircraft mass into several sub-sections according to the relevant technical requirements and based on the geometric position, and then calculate the mass characteristics (including weight, center of gravity, and moment of inertia) of each sub-section. The mass distribution state of the aircraft formed by the mass characteristics between the cells is called the mass distribution of the aircraft. [0003] Mass distribution data is an important original design basis in many fields of aircraft design. In the development process of different types of aircraft, detailed calculation and analysis of mass distribution characteristics are required. [0004] For a long time, my country's aircraft design has been implemented with low-level m...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李挺林鹏杨凯张研
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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