طراحي زنجيره تأمين رقابتي با در نظر گرفتن اختلال در تأمين (مطالعه موردي: زنجيره تأمين سنگ هاي تزئيني)

Competitive Supply Chain Design Considering Supply Disruption: A Case of the Decorative Stones Supply Chain

ﻫﺪف اﺻﻠﯽ اﯾﻦ ﭘﮋوﻫﺶ اراﺋﻪ ﻣﺪﻟﯽ ﺑﺮاي ﻃﺮاﺣﯽ زﻧﺠﯿﺮه ﺗﺄﻣﯿﻦ ﺳﻨﮓﻫﺎي ﺗﺰﺋﯿﻨﯽ در ﺷﺮاﯾﻂ رﻗﺎﺑﺘﯽ و ﺑـﺎ در ﻧﻈـﺮﮔﺮﻓﺘﻦ رﯾﺴﮏﻫﺎي اﺧﺘﻼل ﻣﯽﺑﺎﺷﺪ. اﺑﺰار اﺻﻠﯽ ﻣﻮرد اﺳﺘﻔﺎده در اﯾﻦ ﭘﮋوﻫﺶ، اﺳﺘﻔﺎده از ﺑﺮﻧﺎﻣـﻪ رﯾـﺰي رﯾﺎﺿـﯽ و ﺗﺌﻮري ﺑﺎزيﻫﺎ ﻣﯽﺑﺎﺷﺪ ﮐﻪ اﻏﻠﺐ در ﻣﺪﻟﺴﺎزي ﻣﺪلﻫﺎي رﻗﺎﺑﺘﯽ از ﺑﺎزي اﺳﺘﮑﻠﺒﺮگ اﺳﺘﻔﺎده ﻣـﯽ ﮔـﺮدد. ﻫﻤﭽﻨـﯿﻦ ﻫﺪف در ﻣﺪﻟﺴﺎزي اﯾﻦ ﻣﺴﺌﻠﻪ ﻣﻘﺎﺑﻠﻪ ﺑﺎ رﯾﺴﮏﻫﺎي اﺣﺘﻤﺎﻟﯽ اﺧﺘﻼل و در ﻧﻈﺮﮔﺮﻓﺘﻦ ﺷﺮاﯾﻂ رﻗﺎﺑﺘﯽ ﺑﺎزار ﻣﯽﺑﺎﺷﺪ. ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﺷﺮاﯾﻂ ﻣﺴﺌﻠﻪ، از روشﻫﺎي ﻓﺮا اﺑﺘﮑﺎري ﻧﻈﯿﺮ اﻟﮕﻮرﯾﺘﻢ ﺑﻬﯿﻨﻪ ﺳﺎزي اﻧﺒﻮه ذرات و ﺑﻬﯿﻨﻪ ﺳـﺎز ي ﻣﺒﺘﻨـﯽ ﺑـﺮ ﺟﻐﺮاﻓﯿﺎي زﯾﺴﺘﯽ ﺟﻬﺖ ﺣﻞ ﻣﺪل و اﻋﺘﺒﺎرﺳﻨﺠﯽ آن اﺳﺘﻔﺎده ﺷﺪه اﺳﺖ. ﻧﺘﺎﯾﺞ ﺣﺎﺻﻞ از اﯾﻦ ﺗﺤﻘﯿﻖ ﻧﺸﺎن ﻣﯽدﻫﺪ ﮐﻪ ﺑﺮوز اﺧﺘﻼل، ﺗﺼﻤﯿﻤﺎت ﻣﮑﺎنﯾـﺎﺑﯽ اﺳـﺘﻘﺮار ﻣﺮاﮐـﺰ ﺗﻮﻟﯿـﺪي و ﺗـﻮزﯾﻌﯽ، ﻗﯿﻤـﺖ ﻣﺤﺼـﻮﻻت و ﺳـﻮد اﺟـﺰاي زﻧﺠﯿﺮه را ﺗﺤﺖ ﺗﺄﺛﯿﺮ ﻗﺮار ﻣﯽدﻫﺪ.

The main aim of this paper is to provide a model for supply chain design of decorative stones in competitive conditions by taking into account the risk of the disruption. The main tools used in this study are mathematical programming and game theory which Stackelberg game is often used for competitive modeling. The aim of the proposed model is to consider potential risks of disruption and competitive situation in the market. Also, due to the problem situation, we use meta-heuristic methods like particle swarm optimization and biogeography based optimization for solving and verification of the model. The results show that the occurrence of disruption affects in location decisions of production and distribution centers, price of products and profit of chain components.