witness上機(jī)報告.docx

Witness上機(jī)報告第一題某港口只有一個岸橋?yàn)榈竭_(dá)的船舶提供卸貨服務(wù)。當(dāng)船舶到達(dá)港口時，停入泊位等待服務(wù)。如果岸橋空閑，則立即對其進(jìn)行貨物卸載作業(yè)；如果岸橋?yàn)槠渌靶遁d，則船舶在泊位等待；岸橋?yàn)榇疤峁┓?wù)的規(guī)則為FIFO。 假設(shè)船舶到達(dá)時間間隔服從均值為10小時的負(fù)指數(shù)分布，岸橋?yàn)槊克掖男遁d時間服從6,14小時的均勻分布。設(shè)施布置圖：REPORT:ELEMENT NAME: 船舶Element Type:PartType:Variable attributesGroup number:1Inter Arrival Time:NEGEXP (10)First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to 泊位_ELEMENT NAME: 泊位Element Type:BufferQuantity: 1Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 岸橋Element Type:MachineQuantity: 1Priority:LowestType:SingleCycle Time:UNIFORM (6,14)Input / Output RulesInput:PULL from 泊位Output:PUSH to SHIP_運(yùn)行模型：結(jié)果分析：岸橋利用率：96.21%船舶的平均等待時間：66.56港口船舶等待隊(duì)列的最大長度：20服務(wù)船舶數(shù)量：232第二題1. 船舶到達(dá)時發(fā)現(xiàn)港口中已經(jīng)有4艘船舶在等待，則選擇離開設(shè)施布置圖：REPORT:ELEMENT NAME: 泊位Element Type:BufferQuantity: 1Capacity:4Input Option:RearOutput Option:FirstSearch From:Front_2. 船舶等待時間超出30小時，則選擇進(jìn)行服務(wù)投訴設(shè)施布置圖：REPORT:ELEMENT NAME: 船Element Type:PartType:Variable attributesGroup number:1Inter Arrival Time:NEGEXP (10)First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to 泊位_ELEMENT NAME: 泊位Element Type:BufferQuantity: 1Capacity:1000Delay Mode:MaximumMax Time in:30.0Input Option:RearOutput Option:FirstSearch From:FrontInput / Output RulesOn max delay:PUSH to 投訴區(qū)_ELEMENT NAME: 投訴區(qū)Element Type:BufferQuantity: 1Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 岸橋Element Type:MachineQuantity: 1Priority:LowestType:SingleCycle Time:UNIFORM (6,14)Input / Output RulesInput:PULL from 投訴區(qū),泊位Output:PUSH to SHIP_結(jié)果分析：系統(tǒng)100天中接受到的投訴數(shù)量：1633. 港口增加了一臺岸橋?qū)Υ斑M(jìn)行服務(wù)REPORT:ELEMENT NAME: 船Element Type:PartType:Variable attributesGroup number:1Inter Arrival Time:NEGEXP (10)First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to 泊位_ELEMENT NAME: 泊位Element Type:BufferQuantity: 1Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 岸橋Element Type:MachineQuantity: 2Priority:LowestType:SingleCycle Time:UNIFORM (6,14)Input / Output RulesInput:PULL from 泊位Output:PUSH to SHIP_第三題設(shè)施布置圖：REPORT:ELEMENT NAME: 零件Element Type:PartType:Variable attributesGroup number:1Maximum Arrivals:0_ELEMENT NAME: 稱重Element Type:MachineQuantity: 1Priority:LowestType:SingleCycle Time:NEGEXP (5)Input / Output RulesInput:PULL from 零件 out of WORLDOutput:PUSH to C1 at Rear_ELEMENT NAME: 清洗Element Type:MachineQuantity: 1Priority:LowestType:SingleCycle Time:NEGEXP (4.5)Input / Output RulesInput:PULL from C1 at FrontOutput:PUSH to C2 at RearLabor RequirementsSetup #1: 工人Set-upDescription:New SetupSet-up type:OperationsOps to First:UndefinedOps between:10Set-up Time:NEGEXP (8,1)_ELEMENT NAME: 加工Element Type:MachineQuantity: 1Priority:LowestType:SingleCycle Time:NEGEXP (4)Input / Output RulesInput:PULL from C2 at FrontOutput:PUSH to C3 at RearLabor RequirementsRepair #1:工人Repair #2:工人BreakdownDescription:New BreakdownBreakdown type:Busy TimeAt Start of Cycle:YesDown Interval:50.0Repair Time:NEGEXP (10)Scrap Part:NoSet-up on repair:NoBreakdownDescription:New BreakdownBreakdown type:Busy TimeAt Start of Cycle:YesDown Interval:NEGEXP (100,5)Repair Time:NEGEXP (30,1)Scrap Part:NoSet-up on repair:No_ELEMENT NAME: 檢查Element Type:MachineQuantity: 1Priority:LowestType:SingleCycle Time:NEGEXP (3)Input / Output RulesInput:PULL from C3 at FrontOutput:PUSH to SHIP_ELEMENT NAME: C1Element Type:ConveyorQuantity: 1Priority:LowestType:QueuingLength:20Maximum Capacity:20Index Time:0.5_ELEMENT NAME: C2Element Type:ConveyorQuantity: 1Priority:LowestType:QueuingLength:20Maximum Capacity:20Index Time:0.5_ELEMENT NAME: C3Element Type:ConveyorQuantity: 1Priority:LowestType:QueuingLength:20Maximum Capacity:20Index Time:0.5_ELEMENT NAME: 工人Element Type:LaborQuantity always available:1運(yùn)行模型：第四題三種類型的零件A、B、C隨機(jī)到達(dá)系統(tǒng)，分別暫存于倉庫的特定庫區(qū)，有一裝配機(jī)器將1個A、2個B和1個C組裝一個成品D，放入專有緩沖區(qū)中；其中：l A零件到達(dá)時間間隔為5分鐘，批量為1，第一個零件在0時刻到達(dá)；l B零件到達(dá)時間間隔為4分鐘，批量為2，第一個零件在10時刻點(diǎn)到到；l C零件到達(dá)時間間隔為6分鐘，批量為1，第一個零件在0時刻到達(dá)，該零件總量為20；l 裝配機(jī)器對零件的提取順序?yàn)橄热、再取B、再取C；裝配機(jī)器的組裝時間為6分鐘設(shè)施布置圖：REPORT:ELEMENT NAME: AElement Type:PartType:Variable attributesGroup number:2Inter Arrival Time:5.0First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to 倉庫(1)_ELEMENT NAME: BElement Type:PartType:Variable attributesGroup number:1Inter Arrival Time:4.0First Arrival at:10.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to 倉庫(2)_ELEMENT NAME: CElement Type:PartType:Variable attributesGroup number:1Inter Arrival Time:6.0First Arrival at:0.0Maximum Arrivals:20Input / Output RulesOutput:PUSH to 倉庫(3)_ELEMENT NAME: DElement Type:PartType:Variable attributesGroup number:1Maximum Arrivals:0_ELEMENT NAME: 倉庫Element Type:BufferQuantity: 3Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 機(jī)器Element Type:MachineQuantity: 1Priority:LowestType:AssemblyAssembly Qty:4Cycle Time:6.0Input / Output RulesInput:SEQUENCE /Wait 倉庫(1)#(1),倉庫(2)#(2),倉庫(3)#(1)Output:BUFFER (30)ActionsFinish:CHANGE ALL to D_第五題有一個制造車間由5組機(jī)器加工三種產(chǎn)品A,B.C。每種產(chǎn)品分別要求完成 4道、3道和5道工序，而每道工序必須在指定的機(jī)器組上，按照事先規(guī)定好的工藝順序進(jìn)行。第1，2，3，4，5組機(jī)器分別有3，2，4，3，1臺相同的機(jī)器，A,B.C三種產(chǎn)品原料到達(dá)車間的間隔時間分別服從均值為 50，30，75 分鐘的負(fù)指數(shù)型分布。三種產(chǎn)品的工藝路線如下表所示。l 即第1種作業(yè)首先在第 3 組機(jī)器上加工，然后在第 1 組、再在第 2 組機(jī)器上加工，最后在第 5 組機(jī)器上完成最后工序。如果一項(xiàng)作業(yè)在特定時間到達(dá)車間，發(fā)現(xiàn)該組機(jī)器全都忙著，該作業(yè)就在該組機(jī)器處排入一個 FIFO 規(guī)則的隊(duì)列。在特定機(jī)器上完成一個工序的時間是一種二階愛爾朗分布的隨機(jī)變量，它的平均值取決于作業(yè)的類別以及機(jī)器的組別（用Erlang(R-cycle,2,1)實(shí)現(xiàn)）。l 模擬一周（5*480=2400分鐘）的時間，計(jì)算每種產(chǎn)品在系統(tǒng)中的作業(yè)總平均時間，以及每組機(jī)器隊(duì)列中的平均作業(yè)數(shù)、平均利用率及平均等待時間。并試圖進(jìn)行改善。設(shè)施布置圖：REPORT:ELEMENT NAME: AElement Type:PartType:Variable attributesGroup number:1Inter Arrival Time:NEGEXP (50)First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to ROUTE_ELEMENT NAME: BElement Type:PartType:Variable attributesGroup number:1Inter Arrival Time:NEGEXP (30)First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to ROUTE_ELEMENT NAME: CElement Type:PartType:Variable attributesGroup number:1Inter Arrival Time:NEGEXP (75)First Arrival at:0.0Maximum Arrivals:UnlimitedInput / Output RulesOutput:PUSH to ROUTE_ELEMENT NAME: Buffers001Element Type:BufferQuantity: 1Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 機(jī)器1Element Type:MachineQuantity: 3Priority:LowestType:SingleCycle Time:ERLANG (R_CYCLE,2,1)Input / Output RulesInput:PULL from Buffers001Output:PUSH to ROUTE_ELEMENT NAME: Buffers002Element Type:BufferQuantity: 1Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 機(jī)器2Element Type:MachineQuantity: 2Priority:LowestType:SingleCycle Time:ERLANG (R_CYCLE,2,2)Input / Output RulesInput:PULL from Buffers002Output:PUSH to ROUTE_ELEMENT NAME: Buffers003Element Type:BufferQuantity: 1Capacity:1000Input Option:RearOutput Option:FirstSearch From:Front_ELEMENT NAME: 機(jī)器3Elem