Heuristic for Critical Machine Based a Lot Streaming for Two-Stage Hybrid Production Environment

International Conference on Emerging Trends in Engineering Research

工业技术;材料科学

Vivek, P.^1 ; Saravanan, R.^2 ; Chandrasekaran, M.^1 ; Pugazhenthi, R.^1

Department of Mechanical Engineering, Vels University, Chennai, Tamilnadu, India^1

Department of Mechanical Engineering, Ellenki College of Engineering and Technology, Hyderabad, Telangana, India^2

关键词: Critical machine;    Heuristic approach;    Hybrid flow shop;    Hybrid production;    Identical parallel machines;    Identification procedure;    Real time simulations;    Real-world problem;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/183/1/012030/pdf
DOI  :  10.1088/1757-899X/183/1/012030

来源: IOP

【 摘 要 】

Lot streaming in Hybrid flowshop [HFS] is encountered in many real world problems. This paper deals with a heuristic approach for Lot streaming based on critical machine consideration for a two stage Hybrid Flowshop. The first stage has two identical parallel machines and the second stage has only one machine. In the second stage machine is considered as a critical by valid reasons these kind of problems is known as NP hard. A mathematical model developed for the selected problem. The simulation modelling and analysis were carried out in Extend V6 software. The heuristic developed for obtaining optimal lot streaming schedule. The eleven cases of lot streaming were considered. The proposed heuristic was verified and validated by real time simulation experiments. All possible lot streaming strategies and possible sequence under each lot streaming strategy were simulated and examined. The heuristic consistently yielded optimal schedule consistently in all eleven cases. The identification procedure for select best lot streaming strategy was suggested.