ارائۀ مدل پویایی ارزیابی بهره‏وری نیروی کار معادن (مطالعۀ موردی: مجتمع معدنی و صنعتی چادرملو)

نوع مقاله: مقاله علمی پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد مهندسی معدن‌ ـ فنی اقتصادی، دانشگاه تربیت مدرس، تهران، ایران‌

2 دانشیار گروه مهندسی معدن ‌ـ اقتصاد معدن، دانشکدۀ فنی مهندسی دانشگاه تربیت مدرس، تهران، ایران‌

3 دانشیار گروه مدیریت صنعتی، دانشکدۀ اقتصاد و مدیریت، دانشگاه تربیت مدرس، تهران، ایران‌

چکیده

صنعت معدن با وجود پیشرفت شایان توجه فناوری‏های مرتبط با آن، بر نیروی انسانی متکی است و نیروی کار یکی از نهاده‏های مهم تولید را تشکیل می‏دهد. در این مقاله، رویکردی مبتنی بر پویایی سیستم به‌منظور ارزیابی بهره‏وری نیروی کار در معادن ارائه شده است. بدین‌منظور ضمن شناسایی متغیرهای مؤثر بر بهره‏وری، دو مدل کیفی و کمّی طراحی و پیاده‏سازی شد. مدل کیفی توصیف‏کنندۀ روابط علّی و چگونگی بازخورد سیستمی بین متغیرها در قالب 14 حلقۀ علت ‌ـ معلولی است. مدل کمّی بر روابط ریاضی بین متغیرها و بازخوردهای مرتبط با آن مبتنی است. برای آزمایش کارکرد مدل، از داده‏های شرکت معدنی و صنعتی چادرملو استفاده شد و چگونگی تأثیر دو متغیر اصلی مهارت و انگیزه بر بهره‏وری نیروی کار بررسی گردید. بر‌اساس شبیه‏سازی‏های انجام‌شده کاهش 50 درصدی در مهارت و انگیزه به‌ترتیب افت 10 و 13 درصد بهره‏وری را به‌دنبال خواهد داشت. با استفاده از مدل ارائه‌شده، مدیران شرکت قادر خواهند بود که عوامل مؤثر و میزان تأثیر آنها را بر بهره‏وری نیروی کار ارزیابی کنند و برای بهبود تصمیم‎های لازم را اتخاذ نمایند.

کلیدواژه‌ها


عنوان مقاله [English]

Dynamic modelling of labor productivity in mining- Case study: Chadormaluo mining and industry complex

نویسندگان [English]

  • Zirar Mahmoodi 1
  • Ahmad Sayadi 2
  • Ali Rajabzadeh Ghatari 3
1 MSc. Student of Mining Engineering, Tarbiat Modares University, Tehran, Iran
2 Associate Prof., of Mining Economics, Tarbiat Modares University, Tehran, Iran
3 Associate Prof., of Industrial Management, Tarbiat Modares University, Tehran, Iran
چکیده [English]

In despite of all progress in technology in mining industry, still labor is one of the key factors in mining operation. This paper presents a system dynamics approach to evaluate the mining labor productivity. Therefore, after the identification of main effective variables, two quantitative and qualitative models were built. The qualitative model illustrates the complex interrelated structure of effective variables in 14 causal and feedback loops. The quantitative model is based on mathematical relationship between variables. Finally, the model was implemented in Chadormaluo mining complex as one of the main producers of iron ore and concentrate in Iran. Simulation of labor productivity shows that 50% decrease in skill and motivation will result 10% and 13% decline in labor productivity, respectively. This model helps managers to evaluate the influence of effective factors on labor productivity and to have appropriate decision making.

کلیدواژه‌ها [English]

  • Labor productivity
  • System Dynamics
  • mine
  • iron
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