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Wing assembly positioning layout design method based on MSVR

A layout design and wing technology, applied in the field of MSVR-based wing assembly positioning layout design, can solve the problems of low efficiency, achieve the effect of improving assembly efficiency, reducing computational complexity, and accurately determining

Active Publication Date: 2020-04-10
NORTHWESTERN POLYTECHNICAL UNIV
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  • Description
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Problems solved by technology

[0003] In order to overcome the low efficiency of the existing wing assembly positioning layout design method, the present invention provides a MSVR-based wing assembly positioning layout design method

Method used

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  • Wing assembly positioning layout design method based on MSVR
  • Wing assembly positioning layout design method based on MSVR
  • Wing assembly positioning layout design method based on MSVR

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Embodiment Construction

[0042] The specific steps of the MSVR-based wing assembly positioning layout design method of the present invention are as follows:

[0043] 1. Model construction.

[0044] (1) Build the MSVR model.

[0045] On the basis of the conventional SVR method, the single output is extended to multi-output. Suppose given sample data D={(x 1 ,y 1 ),(x 2 ,y 2 ),…,(x l ,y l )|x i ∈R m ,y i ∈R n}, establish a regression function between input and output data

[0046]

[0047] x in the above formula i =(x i,1 ,x i,2 ,...,x i,m ) T ∈R m ,y i =(y i,1 ,y i,2 ,...,y i,n ) T ∈R n , Represents a nonlinear mapping function. where W is the determinant formed by the weight vector, B is a vector composed of real numbers, that is, B=(b 1 ,b 2 ,...,b n ) T ∈R n. For such problems, if the general single-output ε-SVR modeling process is not changed, the multi-dimensional output regression problem cannot be directly transformed into a quadratic programming problem for ...

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Abstract

The invention discloses a wing assembly positioning layout design method based on MSVR. The method is used for solving the technical problem that an existing wing assembly positioning layout design method is low in efficiency. According to the method, firstly, an MSVR model is constructed, then MSVR model parameters are optimized based on a particle swarm-genetic algorithm, and finally, the positioning layout meeting the wing assembly site is rapidly designed with the temperature, the positioner load, the positioner space position, the wing key measuring points and the like as input conditions. On the basis of assembly site sensing data such as temperature, locator load, locator spatial position and wing key measuring points which influence the locating layout, compared with the backgroundart, the method better conforms to the assembly site reality, the wing assembly layout can be accurately determined, the calculation complexity of an algorithm is reduced, and then the wing assemblyefficiency is improved.

Description

technical field [0001] The invention relates to a design method for wing assembly positioning layout, in particular to an MSVR-based wing assembly positioning layout design method. Background technique [0002] The document "Layout and Stroke Optimization of Wing Numerical Control Positioner, Journal of Beijing University of Technology, 2014, Vol40(9), p1281-1287" discloses a layout design method of a three-coordinate numerical control positioner that can be used to support various wings. Based on the analysis of the layout of the locator on the digital attitude adjustment and finishing platform and the stroke projected in the platform, according to the feature that the projection of the locator stroke on the platform is a rectangle, the numerical control locator stroke is established. The optimization function uses the genetic algorithm to calculate the optimal layout and travel range of the locator. This method provides a basis for the layout and structure design of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06N3/00
CPCG06N3/006Y02T90/00
Inventor 李西宁赵志浩成娇王悦舜
Owner NORTHWESTERN POLYTECHNICAL UNIV