WOLFRAM SYSTEM MODELER
DistributionDistribution model |
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Diagram
Wolfram Language
In[1]:=
SystemModel["SystemDynamics.IndustrialDynamics.Inventory.Distribution"]
Out[1]:=
Information
This model describes the distribution network of produced goods. Goods that are being distributed are represented by the mass-flow model in the lower part of the graph, whereas the orders for these goods are represented by the mass-flow models in the upper part of the graph. The signal-flow model represents the control of the flow of goods based on the information obtained from their order status.
Parameters (12)
| AID |
Value: 6 Type: Real Description: Gain factor for inventory in distribution |
|---|---|
| DCD |
Value: 2 Type: Real (wk) Description: Delay clerical |
| DHD |
Value: 1 Type: Real (wk) Description: Delay in handling |
| DID |
Value: 4 Type: Real (wk) Description: Delay in inventory (and pipeline) adjustment |
| DMD |
Value: 0.5 Type: Real (wk) Description: Mail delay |
| DRD |
Value: 8 Type: Real (wk) Description: Delay in smoothing requisitions |
| DUD |
Value: 0.6 Type: Real (wk) Description: Delay due to unfillable orders |
| DTD |
Value: 2 Type: Real (wk) Description: Transportation delay |
| RRDini |
Value: 1000 Type: Real (1/wk) Description: Initial requests at retail |
| RSDini |
Value: RRDini Type: Real |
| IADini |
Value: AID * RSDini Type: Real |
| UODini |
Value: RSDini * (DHD + DUD) Type: Real |
Connectors (8)
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rrf |
Type: MassOutPort Description: New order demands |
|---|---|---|
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ssf |
Type: MassInPort Description: Manufactured goods leaving factory |
|
uof |
Type: MassInPort Description: Unfilled orders |
|
dff |
Type: MassInPort Description: Desired delay in filling orders |
|
ssd |
Type: MassOutPort Description: Goods leaving distribution |
|
rrd |
Type: MassInPort Description: New order demands |
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uod |
Type: MassOutPort Description: Unfilled orders |
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dfd |
Type: MassOutPort Description: Desired delay in filling orders |
Components (20)
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IAD |
Type: Level Description: Produced goods in distribution |
|---|---|---|
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SSD |
Type: Rate_1 Description: Goods leaving distribution |
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SSD_d |
Type: SSD_d Description: Delivery rate at distribution |
|
PPD |
Type: Rate_1 Description: Orders leaving distribution |
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Source1 |
Type: Source Description: This is the (dummy) source model of System Dynamics |
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UOD |
Type: Level Description: Unfilled orders |
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ODD |
Type: Rate_1 Description: Orders filled due to delivery |
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Sink1 |
Type: Sink Description: This is the (dummy) sink model of System Dynamics |
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PPD1 |
Type: PPD1 Description: Manufacturing demand at distribution |
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PPD2 |
Type: PPD2 Description: Partial manufacturing adjustment for distribution |
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UND |
Type: Gain Description: Desired unfilled orders |
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LAD |
Type: LAD Description: Actual delays in order processing |
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LDD |
Type: LDD Description: Desired delay in order processing |
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IDD |
Type: Gain Description: Desired produced goods in distribution |
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DFD |
Type: DFD Description: Desired delay in filling orders |
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STD |
Type: Division Description: Desired order filling rate |
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RSD_delayed |
Type: DELAY1 Description: Delayed new orders |
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Transporation_Delay |
Type: DELAY3 Description: Transporation_Delay |
|
Order_Delay |
Type: DELAY3 Description: Order_Delay |
|
Mail_Delay |
Type: DELAY3 Description: Mail_Delay |
Used in Examples (4)
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SystemDynamics.IndustrialDynamics.Inventory Inventory simulation with random orders |
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SystemDynamics.IndustrialDynamics.Inventory Inventory simulation with sinusoidal orders |
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InventoryForresterSinOneYearCapacity SystemDynamics.IndustrialDynamics.Inventory Inventory simulation with sinusoidal orders |
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SystemDynamics.IndustrialDynamics.Inventory Inventory simulation with sinusoidal orders |