Scheduling of steelmaking-continuous casting process using deflected surrogate Lagrangian relaxation approach and DC algorithm

H Cui, X Luo, Y Wang - Computers & Industrial Engineering, 2020 - Elsevier
This paper investigates a hybrid flowshop scheduling (HFS) problem in the steelmaking
continuous casting (SCC) process. Firstly, a mathematical model is built for the SCC …

Scheduling of steelmaking-continuous casting process with different processing routes using effective surrogate Lagrangian relaxation approach and improved …

H Cui, X Luo, Y Wang - International Journal of Production …, 2022 - Taylor & Francis
This paper studies a steelmaking-continuous casting scheduling problem with different
processing routes. We model this problem as a mixed-integer nonlinear programming …

An improved Lagrangian relaxation approach to scheduling steelmaking-continuous casting process

H Cui, X Luo - Computers & Chemical Engineering, 2017 - Elsevier
In the steelmaking continuous-casting (SCC) process, scheduling problem is a key issue for
the iron and steel production. To improve the productivity and reduce material consumption …

A novel Lagrangian relaxation approach for a hybrid flowshop scheduling problem in the steelmaking-continuous casting process

K Mao, Q Pan, X Pang, T Chai - European Journal of Operational Research, 2014 - Elsevier
One of the largest bottlenecks in iron and steel production is the steelmaking-continuous
casting (SCC) process, which consists of steel-making, refining and continuous casting. The …

An effective subgradient method for scheduling a steelmaking-continuous casting process

K Mao, QK Pan, T Chai, PB Luh - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
The steelmaking-continuous-casting (SCC) process, which includes steelmaking, refining
and continuous casting, is one of the major bottlenecks of iron and steel production. Efficient …

A novel Lagrangian relaxation level approach for scheduling steelmaking-refining-continuous casting production

X Pang, L Gao, Q Pan, W Tian, S Yu - Journal of Central South University, 2017 - Springer
A Lagrangian relaxation (LR) approach was presented which is with machine capacity
relaxation and operation precedence relaxation for solving a flexible job shop (FJS) …

Scheduling a real-world hybrid flow shop with variable processing times using Lagrangian relaxation

L Sun, S Yu - The International Journal of Advanced Manufacturing …, 2015 - Springer
This paper studies a real-world hybrid flow shop problem arising from the steelmaking
continuous casting process, which is the bottleneck of the iron and steel production. There …

A bi-layer optimization approach for a hybrid flow shop scheduling problem involving controllable processing times in the steelmaking industry

S Jiang, M Liu, J Hao, W Qian - Computers & Industrial Engineering, 2015 - Elsevier
A steelmaking-continuous casting (SCC) scheduling problem is an example of complex
hybrid flow shop scheduling problem (HFSSP) with a strong industrial background. This …

Scheduling of steel-making and continuous casting system using the surrogate subgradient algorithm for Lagrangian relaxation

L Sun, T Chai, PB Luh - 2010 IEEE International Conference on …, 2010 - ieeexplore.ieee.org
How to make a good schedule in a computationally efficient manner and be able to assess
the quality of schedule to improve the steel production and effectively assist the reschedule …

Scheduling a realistic hybrid flow shop with stage skipping and adjustable processing time in steel plants

J Long, Z Zheng, X Gao, PM Pardalos - Applied Soft Computing, 2018 - Elsevier
This paper studies a new realistic hybrid flow shop (HFS) scheduling problem with stage
skipping and adjustable processing time in steelmaking-continuous casting (SCC) …