A Novel Parallel Assembly Sequence Planning Method for Complex Products Based on PSOBC

Yang, Yong; Yang, Miao; Shu, Liang; Li, Shasha; Liu, Zhiping

doi:10.1155/2020/7848329

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Efatmaneshnik and Ryan [40] proved that optimal modularity can be achieved through balanced modularization by using a concept of structural symmetry in the distribution of the module sizes. e presented work was also inspired by methods focused on optimal assembly sequence generation and multistation assembly sequence planning [41][42][43][44]. e most relevant works to this research include works [32,45,46], which will be analyzed in detail in a separate section of this paper.…”

Section: Literature Review and Related Workmentioning

confidence: 99%

Development of the Modularity Measure for Assembly Process Structures

Modrák

Šoltysová

2021

Mathematical Problems in Engineering

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This study is aimed at exploring the problem of quantification of process modularity degree. Modularity as a system design principle is apprehended here as the extent to which processes can be decomposed into modules to be executed in parallel and/or in series. For this purpose, a new method is proposed to measure relative modularity of different assembly process structures. This method is compared with other relative modularity measures, namely singular value modularity index, degree of process module, and process module independence, in order to verify its effectiveness. For this purpose, selected representative types of assembly process structures are used. This testing proved that the proposed relative modularity indicator for manufacturing and/or assembly process structures reflects the expected system property in adequate way.

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Section: Literature Review and Related Workmentioning

confidence: 99%

Development of the Modularity Measure for Assembly Process Structures

Modrák

Šoltysová

2021

Mathematical Problems in Engineering

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“…With the rapid development of computer computing power and the introduction of intelligent algorithms, the optimization of assembly sequence has become efficient, flexible, and rich in calculation results [24]. Yang et al [25] developed a novel PSOBC algorithm based on the conventional PSO algorithm for complex products; this method avoids a large number of matrix calculation by establishing synchronized assembly Petri net (SAPN) to describe the precedence relationships, and the provided PSOBC not only prevents premature convergence to a high degree but also keeps a more rapid convergence rate than the standard PSO algorithm. Bahubalendruni et al [26] proposed a novel and efficient method to obtain all valid assembly sequences and optimized assembly sequence for a given assembled product, which considers four basic predicates, namely, "liaison predicate, geometrical feasibility, mechanical feasibility, and stability" to validate each sequence, and the validity of the method is validated by different example products.…”

Section: Introductionmentioning

confidence: 99%

Fixture Design in Flexible Tooling of Aircraft Panel Based on Thin Plate Theory

Pan

Liu

Sun

et al. 2022

Mathematical Problems in Engineering

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Flexible and conformal positioning of the skin is of great significance for the efficient and low deformation assembly of aircraft panels. As the main conformal positioning part of the skin, the fixture positioning surface is complicated to design when taking into account the flexible positioning. In this study, taking the low deformation and flexible clamping of the skin under complex stress conditions as the target, a fixture positioning profile design method is proposed to predict the deformation of the skin and provide moderate support for the skin based on thin plate theory (TPT). In the face of complex stress and boundary conditions of the skin, the differential method is used to solve the stress and deformation of the skin under different support conditions, which is correctly verified by finite element simulation. The proposed method reveals the influence of the fixture positioning profile on the deflection of the aircraft skin under concentrated load (drilling force), which provides a good design theoretical basis for the fixture design for the low deformation flexible clamping of the skin.

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“…However, PASP is treated as NP hard problem due to the existence of methodological difficulties at its development stage and computational complexities at implementation for solution generation (Wang and Liu, 2013;Yang et al, 2020;Bedeoui et al, 2019). Traditional ASP methods are confined to perform linear ASP (LASP), which is about performing one-by-one task to finish the overall assembly process.…”

Section: Introductionmentioning

confidence: 99%

A heuristic method with a novel stability concept to perform parallel assembly sequence planning by subassembly detection

Gulivindala¹,

Bahubalendruni²,

Varupala³

et al. 2020

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Purpose Parallel assembly sequence planning (PASP) reduces the overall assembly effort and time at the product development stage. Methodological difficulties at framework development and computational issues at their implementation made the PASP complex to achieve. This paper aims to propose a novel stability concept for subassembly detection to minimize the complexities in PASP. Design/methodology/approach In this research, a heuristic method is developed to identify, represent and implement the stability predicate to perform subassembly detection and assembly sequence planning (ASP) at the further stages. Stability is organized into static, dynamic, enriched and no stability between the mating assembly parts. The combination of parts that possesses higher fitness is promoted to formulate the final solution about PASP. Findings The results obtained by applying the proposed concept on complex configurations revealed that stability predicate plays a dominant role in valid subassembly detection and final sequence generation further. Originality/value The value of the presented study lies in the three types of stability conditions and effective integration to existed ASP method. Unlike the existed heuristics in subassembly detection, the proposed concept identifies the parallel subassemblies during ASP.

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A Novel Parallel Assembly Sequence Planning Method for Complex Products Based on PSOBC

Cited by 4 publications

References 23 publications

Development of the Modularity Measure for Assembly Process Structures

Development of the Modularity Measure for Assembly Process Structures

Fixture Design in Flexible Tooling of Aircraft Panel Based on Thin Plate Theory

A heuristic method with a novel stability concept to perform parallel assembly sequence planning by subassembly detection

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