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008 140613s2009 th ad ||| |000 0 eng d
035 _a.b12132305
099 9 _aAIT Thesis no.ISE-09-31
100 1 _aAziz, Muhammad Haris
245 1 0 _aNew model of an FMS using FTPN with demand variability and machine breakdown
260 _aPathum Thani :
_bAsian Institute of Technology,
_c2009
300 _a47 p. :
_bill., charts
490 1 _aThesis ;
_vno. ISE-09-31
500 _aA research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Industrial and Manufacturing Engineering, School of Engineering and Technology
502 _aThesis (M.Eng.) - Asian Institute of Technology, 2009
520 _aFuzzy Timed Petri Nets (FTPN) have been used to model Flexible Manufacturing System (FMS). Effects of demand variability and machine breakdown on the performance measures of the system have been analyzed. At first, closed loop and decision free, generic Petri Net (PN) model of an FMS is extended, which has the properties of liveness and boundednes s. Then fuzzy Membership Functions (MF) of demand forecast, cycle time, machine availa bility, Work In Process (WIP) and demand satisfaction are considered. Then the effect s of demand variability and machine breakdown on cycle time, WIP, lead time, machine ut ilization and actual production of the system are analyzed through fuzzy inference of MF{u2019}s . The proposed model is verified and validated with t he help of an example model with two different cases. In 1 st case demand is considered minimum with maximum availability of machines, whereas, in 2 nd case demand is considered maximum with minimum availability of machines.
650 0 _aFlexible manufacturing systems
650 0 _aPetri nets
650 0 _aFuzzy Petri nets
700 1 _aBohez, Erik L.J.,
_eChairperson
700 0 _aManukid Parnichkun,
_eExamination Committee
700 1 _aDailey, Mathew N.,
_eExamination Committee
710 2 _aHigher Education Commission (HEC) of Pakistan,
_eScholarship donor
710 2 _aAsian Institute of Technology Fellowship,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. ISE-09-31
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B03272
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_tAbstract--AIT Thesis no.ISE-09-31
_vn
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