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Pull rod installing layout method of airplane auxiliary power device

A technology of aircraft auxiliary power and layout method, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as optimization and no layout, reduce structural weight, reduce vibration transmission, and meet the needs of layout optimization. Effect

Active Publication Date: 2012-10-24
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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AI Technical Summary

Problems solved by technology

At present, when installing APU at home and abroad, only the convenience of the layout of the tie rods is generally considered, and the layout optimization based on mechanical properties is not carried out.

Method used

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  • Pull rod installing layout method of airplane auxiliary power device
  • Pull rod installing layout method of airplane auxiliary power device
  • Pull rod installing layout method of airplane auxiliary power device

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Embodiment Construction

[0022] The present invention will be further explained below through specific embodiments in conjunction with the drawings:

[0023] The tie rod layout method of the aircraft auxiliary power device of the present invention uses engineering design software to carry out the parameterized modeling of the structure, and realizes the data transfer of the parameterized entity structure to the finite element analysis software under the call of the optimized process control program; in the finite element software Mesh the entities and apply conditions such as materials, constraints, and loads to the installation system, calculate the structural force or deformation of the rod system, and determine the optimal installation system based on the optimization goals such as system weight and manufacturability through the optimization process. Excellent structure.

[0024] Now, taking a certain type of aircraft auxiliary power unit (APU) installation system as an example, the method for installin...

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Abstract

The invention belongs to the installation technology of airplane airborne equipment and relates to an installing structure layout optimized method of an auxiliary power device. According to the pull rod installing layout method of the airplane auxiliary power device, engineering design software is utilized for structure parameterized modeling, and the data transfer from the parameterized entity structure to the finite element analysis software is realized under the invoking effect of flow process optimization control program; and in the finite element software, entities are subjected to meshing, in addition, the application of conditions of materials, restraining, loads and the like of an installing system is carried out, the structure stress or deformation of a rod system is calculated, and the optimum structure of the installing system is determined by an optimizing flow process according to optimizing targets such as the system weight, good manufacturability and the like. The method has the advantages that the installing structure with the minimum structure weight and the optimal stress form can be obtained, the structure weight is lightened, the vibration transfer is reduced, the installation efficiency and the installing quality are improved, and the layout optimization requirement of the installing system of the airplane auxiliary power device is met.

Description

Technical field [0001] The invention belongs to the installation technology of aircraft airborne equipment, and relates to a method for optimizing the layout of an auxiliary power device installation structure. Background technique [0002] One of the main difficulties in the design of the engine mounting system is the layout and structural optimization of the mounting system. At present, the design of the engine installation system has basically not carried out the optimization of the component (or rod system) configuration and spatial layout, which makes the designed system components heavy in weight and large in size. With the advancement of design technology, optimization design methods are generally adopted in aircraft structural design at home and abroad, which not only reduces the design difficulty and risk of the installation system, but also ensures the optimal design index of the installation system, making the system components lighter and reducing the research cost. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 屈展何晓静奚振吕奇峰
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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