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Simulation design method for skid landing gear

A simulation design and landing gear technology, applied in design optimization/simulation, instruments, aircraft parts, etc., can solve difficult design problems, reduce processing difficulty and assembly difficulty, reduce processing cost, use and maintenance cost, and reduce structural weight Effect

Inactive Publication Date: 2020-03-27
CHINA HELICOPTER RES & DEV INST
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Problems solved by technology

[0004] The traditional skid landing gear design method can only design the performance of a single-configuration skid landing gear, and it is difficult to design a landing gear with a new configuration and a composite material landing gear

Method used

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  • Simulation design method for skid landing gear
  • Simulation design method for skid landing gear

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] An embodiment of the present invention provides a skid landing gear simulation design method, the method includes: the skid landing gear finite element model adopts HyperMesh pre-processing modeling, the Radioss solver performs drop vibration performance simulation, and the OptiStruct solver The nonlinear calculation strength and stiffness, HyperView post-processing processing results.

[0031] 1. HyperMesh pre-processing modeling:

[0...

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Abstract

The invention belongs to a simulation design method for a skid landing gear structure of a helicopter, and discloses a simulation design method for a skid landing gear. The simulation design method comprises the following steps: S1, carrying out finite element model simulation on a skid landing gear, and calculating a model of a finite element of the skid landing gear; S2, performing drop performance simulation on the skid landing gear to obtain an energy absorption curve and a landing load of the skid landing gear; S3, calculating the strength and rigidity of the skid landing gear; and S4, according to the energy absorption curve and the landing load of the landing gear and the strength and rigidity of the skid landing gear, obtaining parameters needed by structural design of the skid landing gear, designing the skid landing gears of various configurations, and designing the landing gear made of composite materials.

Description

technical field [0001] The invention belongs to a structure simulation design method of a skid type landing gear of a helicopter, in particular to a simulation design method of a skid type landing gear. Background technique [0002] Skid landing gear is one of the commonly used landing gear configurations for light helicopters, which is characterized by low manufacturing cost, light structure weight and good energy absorption effect. [0003] In the past, the structural performance design of the skid landing gear was to calculate the relationship curve between the ground reaction force and the deformation of the front and rear beams, and obtain the absorbed work from the area included in the calculation curve, so as to determine the structural size of the landing gear. [0004] The traditional skid landing gear design method can only carry out the performance design for the single configuration skid landing gear, and it is difficult to design the landing gear with the new co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/15G06F119/14B64F5/00
CPCB64F5/00
Inventor 邵元新陈静张梅吴松楠李明忠高扬马凤飞
Owner CHINA HELICOPTER RES & DEV INST
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