Integration of the Decisions Associated with Maintenance Management and Process Control for a Series Production System

Document Type: Research Paper

Authors

1 Faculty of Industrial Engineering, Yazd University, Yazd, Iran

2 Faculty of Industrial Engineering, Yazd University, Iran

Abstract

This paper studies a series production system through the integration of the decisions associated with Maintenance Management (MM) and Statistical Process Control (SPC). Hence, the primary question of the paper can be stated as follows: In a series production system, how can the decisions of MM and SPC be coordinated? To this end, an integrated mathematical model of MM and SPC is developed. Using a method of factorial design, sensitivity analyses are performed. According to a stand-alone maintenance model, the effectiveness of the integrated model is assessed. The series production system investigated consists of identical units. Each unit has two operational states including an in-control state and an out-of-control state. The system is in-control if both units of the system operate in the in-control state. On the other hand, the system is out-of-control, if at least one of the units operates in the out-of-control state. The failure mechanism of each unit is based on a random variable with a continuous distribution. The results of analyses clarify that the integrated model improves the profit of the system.

Keywords

Main Subjects


Article Title [Persian]

یکپارچه سازی تصمیمات مربوط به نگهداری و تعمیرات و کنترل فرایند در یک سیستم تولید سری

Authors [Persian]

  • حسن رسائی 1
  • محمد صابر فلاح نژاد 1
  • یحیی زارع مهرجردی 2
1 دانشکده مهندسی صنایع، دانشگاه یزد، یزد، ایران
2 دانشکده مهندسی صنایع، دانشگاه یزد، یزد، ایران
Abstract [Persian]

در این مقاله یکپارچه سازی تصمیمات مربوط به مدیریت نگهداری و تعمیرات (نت) و کنترل فرایند آماری در یک سیستم تولید سری مورد بررسی قرار می­گیرد. بنابراین سوال اصلی تحقیق را می­توان به صورت زیر بیان نمود: در یک سیستم تولید سری، تصمیمات مربوط به نت و کنترل فرایند آماری به چه صورت می­تواند هماهنگ شود؟ در این راستا، یک مدل یکپارچه نت و کنترل فرایند آماری ارائه می­شود. با استفاده از تکنیک طرح­های عاملی، تحلیل حساسیت انجام شده­است و براساس یک مدل جداگانه نت، عملکرد مدل یکپارچه مورد ارزیابی قرار می­گیرد. سیستم سری مورد نظر از واحد­های یکسان تشکیل شده­است. هر واحد سیستم دارای دو حالت عملیاتی است که شامل یک حالت تحت کنترل و یک حالت خارج از کنترل است. سیستم تحت کنترل در نظر گرفته می­شود اگر هر دو واحد سیستم تحت کنترل باشد. از طرف دیگر سیستم خارج از کنترل فرض می­شود اگر حداقل یکی از واحد­های سیستم در حالت خارج از کنترل فعالیت کند. مکانیسم خرابی برای هر واحد سیستم از یک توزیع کلی پیوسته پیروی می­کند. نتایج تحلیل­ها بیانگر این موضوع است که مدل یکپارچه سود سیستم را بهبود می­بخشد.

Keywords [Persian]

  • نمودار کنترل
  • کنترل فرایند آماری
  • مدیریت نگهداری و تعمیرات
  • سیستم سری
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