Optimized rescheduling of multiple production lines for flowshop production of reinforced precast concrete components

Zhiliang Ma, Zhitian Yang, Shilong Liu, Song Wu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Flowshop production is adopted as the major type of production of reinforced precast concrete components and it has higher requirements on shop floor schedules than other types, especially that from rescheduling. However, up to now, very few approach for the optimization of the shop floor rescheduling has been proposed in spite of its vital importance. This research proposes an approach for optimizing shop floor rescheduling of multiple production lines for flowshop production of reinforced precast concrete components. The approach comprehensively utilizes the over-assigned time, which is the difference value between the assigned production time and the estimated one of a production step for a precast component to deal with production emergencies. Meanwhile, it keeps the adjustment of schedules at minimum to avoid massive material re-dispatch. First of all, the optimization objectives and constraints of optimized shop floor rescheduling of multiple production lines for flowshop precast production are analyzed and a mathematic model is thus formulated. Then, the solver of the model is established by using genetic algorithm. Finally, the approach is validated by case studies. It is concluded that the approach contributes to the effective and efficient optimized rescheduling of multiple production lines for flowshop precast production.
Original languageEnglish
Pages (from-to)86-97
Number of pages12
JournalAutomation in Construction
Volume95
Early online date16 Aug 2018
DOIs
Publication statusPublished - 1 Nov 2018

Fingerprint

Precast concrete
Reinforced concrete
Genetic algorithms

Cite this

@article{b630474ac4c5499787c2808dc4962ccb,
title = "Optimized rescheduling of multiple production lines for flowshop production of reinforced precast concrete components",
abstract = "Flowshop production is adopted as the major type of production of reinforced precast concrete components and it has higher requirements on shop floor schedules than other types, especially that from rescheduling. However, up to now, very few approach for the optimization of the shop floor rescheduling has been proposed in spite of its vital importance. This research proposes an approach for optimizing shop floor rescheduling of multiple production lines for flowshop production of reinforced precast concrete components. The approach comprehensively utilizes the over-assigned time, which is the difference value between the assigned production time and the estimated one of a production step for a precast component to deal with production emergencies. Meanwhile, it keeps the adjustment of schedules at minimum to avoid massive material re-dispatch. First of all, the optimization objectives and constraints of optimized shop floor rescheduling of multiple production lines for flowshop precast production are analyzed and a mathematic model is thus formulated. Then, the solver of the model is established by using genetic algorithm. Finally, the approach is validated by case studies. It is concluded that the approach contributes to the effective and efficient optimized rescheduling of multiple production lines for flowshop precast production.",
keywords = "Precast production, Optimization, Flowshop, Reschedule, Genetic algorithm",
author = "Zhiliang Ma and Zhitian Yang and Shilong Liu and Song Wu",
year = "2018",
month = "11",
day = "1",
doi = "10.1016/j.autcon.2018.08.002",
language = "English",
volume = "95",
pages = "86--97",
journal = "Automation in Construction",
issn = "0926-5805",
publisher = "Elsevier",

}

Optimized rescheduling of multiple production lines for flowshop production of reinforced precast concrete components. / Ma, Zhiliang; Yang, Zhitian; Liu, Shilong; Wu, Song.

In: Automation in Construction, Vol. 95, 01.11.2018, p. 86-97.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optimized rescheduling of multiple production lines for flowshop production of reinforced precast concrete components

AU - Ma, Zhiliang

AU - Yang, Zhitian

AU - Liu, Shilong

AU - Wu, Song

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Flowshop production is adopted as the major type of production of reinforced precast concrete components and it has higher requirements on shop floor schedules than other types, especially that from rescheduling. However, up to now, very few approach for the optimization of the shop floor rescheduling has been proposed in spite of its vital importance. This research proposes an approach for optimizing shop floor rescheduling of multiple production lines for flowshop production of reinforced precast concrete components. The approach comprehensively utilizes the over-assigned time, which is the difference value between the assigned production time and the estimated one of a production step for a precast component to deal with production emergencies. Meanwhile, it keeps the adjustment of schedules at minimum to avoid massive material re-dispatch. First of all, the optimization objectives and constraints of optimized shop floor rescheduling of multiple production lines for flowshop precast production are analyzed and a mathematic model is thus formulated. Then, the solver of the model is established by using genetic algorithm. Finally, the approach is validated by case studies. It is concluded that the approach contributes to the effective and efficient optimized rescheduling of multiple production lines for flowshop precast production.

AB - Flowshop production is adopted as the major type of production of reinforced precast concrete components and it has higher requirements on shop floor schedules than other types, especially that from rescheduling. However, up to now, very few approach for the optimization of the shop floor rescheduling has been proposed in spite of its vital importance. This research proposes an approach for optimizing shop floor rescheduling of multiple production lines for flowshop production of reinforced precast concrete components. The approach comprehensively utilizes the over-assigned time, which is the difference value between the assigned production time and the estimated one of a production step for a precast component to deal with production emergencies. Meanwhile, it keeps the adjustment of schedules at minimum to avoid massive material re-dispatch. First of all, the optimization objectives and constraints of optimized shop floor rescheduling of multiple production lines for flowshop precast production are analyzed and a mathematic model is thus formulated. Then, the solver of the model is established by using genetic algorithm. Finally, the approach is validated by case studies. It is concluded that the approach contributes to the effective and efficient optimized rescheduling of multiple production lines for flowshop precast production.

KW - Precast production

KW - Optimization

KW - Flowshop

KW - Reschedule

KW - Genetic algorithm

UR - http://www.scopus.com/inward/record.url?scp=85051680641&partnerID=8YFLogxK

U2 - 10.1016/j.autcon.2018.08.002

DO - 10.1016/j.autcon.2018.08.002

M3 - Article

VL - 95

SP - 86

EP - 97

JO - Automation in Construction

JF - Automation in Construction

SN - 0926-5805

ER -