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Deflection calculation method of wire rope under even lateral force action

A calculation method, the technology of steel cable deflection, applied in the field of mechanical calculations, can solve the problems of calculation difficulty and heavy workload, and achieve the effect of low difficulty and workload, and low calculation difficulty

Inactive Publication Date: 2016-11-09
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the engineering calculation of the cable deflection affected by the uniform transverse shear force is solved by using the deflection curve equation in the "Aircraft Design Manual (Volume 12)". Big

Method used

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  • Deflection calculation method of wire rope under even lateral force action
  • Deflection calculation method of wire rope under even lateral force action
  • Deflection calculation method of wire rope under even lateral force action

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Embodiment Construction

[0020] The present invention will be further described below with a specific embodiment.

[0021] The internal force distribution of any cross-section of a tensile column beam supported by hinges at both ends and subjected to uniform transverse shear force in the span is shown in figure 1 As shown, the bending moment is:

[0022] M ( x ) = + P y - q L 2 x + q 2 x 2 - - - ( 1 )

[0023] In the formula: P is the axial tension; q is the uniform transverse shear force; L is the span; y is the deflection.

[0024] Under the condition of linear elasticity and small deformation, substitute equation (1) into the deflection curve differential ...

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Abstract

The invention relates to a deflection calculation method of wire rope under centralized lateral shearing force action. The deflection curve equation of a tensile pillar and beam under the even lateral force action in hinge support and a bay on an end A and an end B is simplified to obtain the deflection curve equation suitable for a wire rope without bending resistance. The deflection calculation method of the wire rope under the even lateral force action is small in calculation difficulty and workload and low in calculation efficiency, only a quadratic equation needs to be calculated, the workload is small, working efficiency can be improved, and an error generation probability is lowered.

Description

technical field [0001] The invention belongs to the field of mechanical calculations, in particular to a method for calculating the deflection of a steel cable subjected to a uniform transverse force. Background technique [0002] Deflection refers to the linear displacement of the centroid of the cross section along the direction perpendicular to the axis during bending deformation, which is called deflection. The deflection is related to the magnitude of the load, the section size of the component and the physical properties of the material of the component. Obviously, the value of the deflection line equation at the section x is equal to the deflection at the section. The calculation of deflection usually exists in rigid objects, such as rods, shafts, beams and other objects. Most of the traditional bridge deflection measurements are directly measured by dial indicators or displacement meters, which are still widely used in bridge maintenance, old bridge safety assessme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 刘庭耀孙祥孙仁俊
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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