在不可靠的生产线上同时分配缓冲容量和服务时间
Khelil Kassoul1, Naoufel Cheikhrouhou2,3, Nicolas Zufferey1
1Geneva School of Economics and Management, GSEM - University of Geneva, Geneva, Switzerland.
概括
本研究介绍了一种新的基于模拟的优化方法,将遗传算法 (GA) 和有限扰动分析 (FPA) 结合起来,用于设计不可靠的生产线. 该方法有效地优化了服务时间和缓冲容量,同时提高了生产率.
科学领域:
- 运营研究 运营研究
- 制造系统工程 制造系统工程
- 计算优化计算优化
背景情况:
- 优化制造系统的同时服务时间和缓冲器容量是一个复杂的,NP难题.
- 现有的方法往往优化单个变量,限制全面的系统设计.
- 了解分配模式对于有效的生产线设计至关重要.
研究的目的:
- 为不可靠的生产线开发一种复杂的基于模拟的优化方法.
- 通过同时分配服务时间和缓冲容量来最大限度地提高生产速度.
- 调查缓冲和服务费率分配模式的持久性和特征.
主要方法:
- 一种混合优化策略,将全球搜索的遗传算法 (GA) 和本地搜索的有限扰动分析 (FPA) 结合起来.
- 基于模拟的优化,以在随机环境下建模和评估生产线性能.
- 与传统的单变量方法不同,同时优化服务时间和缓冲器容量.
主要成果:
- 结合GA-FPA方法在解决方案质量和融合速度方面显示出优于独立GA或FPA的性能.
- 确定了与小规模实例的现有文献相一致的分配模式.
- 发现了中大型实例 (3-100台机器) 的分配模式的显著差异.
结论:
- 综合GA-FPA方法为设计高效可靠的制造系统提供了强大的工具.
- 这些发现为各种生产线大小的缓冲和服务费率分配策略提供了重要的见解.
- 该研究强调了考虑对复杂制造挑战的同时变量优化的重要性.
相关概念视频
Multimachine Stability
158
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
158
Load-frequency control
165
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
165
Multiple Pipe Systems
754
Multipipe systems consist of complex configurations of interconnected pipes designed to transport fluids efficiently across intricate networks. They are essential in engineering applications requiring precise control over flow distribution, pressure, and head loss. They are categorized into series, parallel, loop, and network configurations, each distinguished by unique flow characteristics and applications.
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
754


