Sound field modelling and multi-objective optimization for workshop layout

Abstract

Manufacturing enterprise mainly concerns makespan or efficiency of logistics in the process of workshop layout planning. However, environmental impact of noise which also has direct influence on staff productivity is not always considered to improve the productivity of enterprise. Guided by experience, the implementation is always based on pre-existing planning and layout principle, but do not provide quantitative analysis of environmental noise through scientific method. This paper proposes an effective approach to analyze environmental noise quantitatively. Mathematical model of noise on the condition of multiple sound sources is built. Then the numerical simulation and quantitative analysis to environmental acoustic field of workshop is presented. Finally, the double objective function of Flexible Assembly Workshop is established to obtain shortest logistic time and minimum noise, which is solved based on Genetic Algorithm. This work provides a new idea for workshop layout planning to reduce environmental impact of noise.