Seru生产系统中面向公平性的多能工-批次-作业分配联合决策研究

Workload Equity Optimization of Multi-skilled Worker-batch-task Assignment in Seru Production System

多能工的灵活分配对Seru生产系统实现柔性生产至关重要,而现有研究多集中于提高生产效率,易造成工作量分配不公平,影响工人对生产计划接受度。因此从Seru生产系统中多能工工作量公平分配角度出发,选取Min-Max类型优化指标,以最小化最大工人工作量为决策目标,研究了多能工-批次-作业分配联合决策问题,构建了一个公平性导向混合整数非线性规划模型。通过与传统的最小化总劳动时间为目标的效率导向模型进行对比,验证了公平性导向模型的有效性。基于多能工算例和全能工算例的精确解结果显示,与效率导向模型相比,公平性导向模型可以维持较高的生产效率,同时实现多能工间工作量公平分配。

The flexible assignment of multi-skilled workers is critical to realize the flexibility of production in Seru production system.Studies always focus on improving productivity,which easily lead to unfair workload allocation and affect the acceptance of workers for production plan.From the perspective of realizing equitable allocation of workload among multi-sklled workers,a Min-Max type optimization indicator was used to describe the workload equity among workers and an equity-oriented mixed integer nonlinear programming model with the objective of minimizing the maximum workload of workers was proposed to solve the multi-skilled worker-batch-task assignment problem in Seru production system.To verify the effectiveness of the equity-oriented model,an efficiency-oriented model with the aim of minimizing the total labor time was compared.In contrast with the efficiency-oriented model,the exact solutions of the computational instances based on both multi-skilled workers and full-skilled workers show that the equity-oriented model can significantly realize the fair assignment of workload among multi-skilled workers within an appropriate production efficiency level.