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Plots can be created and viewed by clicking the Plot icon located on the Simulation page of the control panel for each diagram.
If you click the Plot icon before the diagram has been simulated, it will automatically be simulated and then the data will be plotted in the plot sheet. (Note that the Plot icon on the Plot sheet control panel refreshes the plot. If data or settings have been changed since the diagram was last simulated, you must resimulate the data before refreshing the plot.)
You can add additional plot sheets to the diagram by right-clicking the sheet index tabs at the bottom of the window and choosing Insert Simulation Plot on the shortcut menu. You can delete a plot sheet from the diagram by selecting the plot sheet, right-clicking and choosing Delete Plot.
The plots available for simulation diagrams fall into five types:
System plots display information about the entire system. These plots are available for all simulation diagrams.
Point Availability shows the system’s point availability over time. The point availability is the probability that a system (or component) will be operational (up and running) at any random time, t. Note that unlike reliability plots for analytical systems, the point availability measure incorporates maintainability information.
Point Reliability shows the system’s point reliability over time. The point reliability is the probability that the system has not failed by time t. This is similar to point availability with the major exception that it looks only at the probability that the system did not have a single failure. Other (non-failure) downing events are ignored. It is very important to note that this value is not always the same as the reliability computed using the analytical methods, depending on the redundancy present. The reason that it may differ is best explained by the following scenario:
Assume two units in parallel. The analytical system reliability, which does not account for repairs, is the probability that both units fail. In this case, when one unit goes down, it does not get repaired and the system fails after the second unit fails. In the case of repairs, however, it is possible for one of the two units to fail and get repaired before the second unit fails. Thus, when the second unit fails, the system will still be up due to the fact that the first unit was repaired.
Both Point A & R shows the system’s point availability over time and the system’s point reliability over time on the same plot.
Cost shows the system’s cost over time. If there are costs associated with crews and with spare part pools, these are also displayed.
Mean Availability shows the system’s mean availability over time, which is the proportion of time during a mission or time period that the system is available for use.
System Failures shows the system’s failures over time.
Throughput shows the system’s throughput over time.
System Up/Down shows the system’s uptimes and downtimes over the course of the simulation. Please note that System Up/Down Plots are designed for only one simulation (i.e., 1 must be entered for the Number of Simulations in the Maintainability/Availability Simulation window). If you run multiple simulations, the plot shows the results for the last simulation only.
Block Up/Down shows each block’s uptimes and downtimes over the course of the simulation. Please note that Block Up/Down Plots are designed for only one simulation (i.e., 1 must be entered for the Number of Simulations in the Maintainability/Availability Simulation window). If you run multiple simulations, the plot shows the results for the last simulation only. When you first select the plot, you must specify which blocks to include by using the Available Blocks area of the control panel to select which blocks to view.
Metrics plots display information about the contributions that individual blocks make to failure and downing events for the entire system. These plots are available for all simulation diagrams.
RS FCI shows the ReliaSoft Failure Criticality Index for each block. This is a relative index showing the percentage of times that a failure of the block caused a system failure (i.e., the number of system failures caused by the block divided by the total number of system failures). Note that this relates to all failures, not just downing failures. You can specify the number of blocks to display; the blocks with the highest RS FCI value will be shown in the plot. Point to a bar to view the block’s name, availability and RS FCI.
RS FCI Tableau shows the ReliaSoft Failure Criticality Index in tableau format. The block name appears on each section of the plot. The green sections represent the blocks with the best RS FCI; the yellow sections the blocks with medium RS FCI and the red sections the blocks with the worst RS FCI. Point to a plot section to view the block’s name, availability and RS FCI.
RS DECI shows the ReliaSoft Downing Event Criticality Index for each block. This is a relative index showing the percentage of times that a downing event of the block caused the system to go down (i.e., the number of system downing events caused by the block divided by the total number of system downing events). You can specify the number of blocks to display; the blocks with the highest RS DECI value will be shown in the plot. Point to a bar to view the block’s name, availability and RS DECI.
RS DECI Tableau shows the ReliaSoft Downing Event Criticality Index for each block in tableau format. The block name appears on each section of the plot. The green sections represent the blocks with the best RS DECI; the yellow sections the blocks with medium RS DECI and the red sections the blocks with the worst RS DECI. Point to a plot section to view the block’s name, availability and RS DECI.
RS DTCI shows the ReliaSoft Downtime Criticality Index for each block. This is a relative index showing the contribution of each block to the system’s downtime (i.e., the system downtime caused by a particular block divided by the total system downtime). You can specify the number of blocks to display; the blocks with the highest RS DTCI value will be shown in the plot. Point to a bar to view the block’s name, availability and RS DTCI.
RS DTCI Tableau shows the ReliaSoft Downtime Criticality Index for each block in tableau format. The block name appears on each section of the plot. The green sections represent the blocks with the best RS DTCI; the yellow sections the blocks with medium RS DTCI and the red sections the blocks with the worst RS DTCI. Point to a plot section to view the block’s name, availability and RS DTCI.
Blocks plots display information about the individual blocks that make up the system. These plots are available for all simulation diagrams.
For blocks plots, when you first select the plot, you must specify which blocks to include by using the Available Blocks area of the control panel to select which blocks to view. Note that if your simulation does not include throughput then no information will be displayed for those plots.
Block Availability shows the percent of time that the block is available during the simulation. Point to a bar to view the block’s name, RS DECI value and availability percentage.
Block Costs shows the cost of the block during the simulation. Point to a bar to view the block’s name, RS DECI value and total costs.
Block Downtime shows the amount of time the block is down during the simulation. Point to a bar to view the block’s name, RS DECI value and total downtime.
Block Expected Failures shows the expected number of failures for the block during the simulation. Point to a bar to view the block’s name, RS FCI value and expected number of failures.
Block Expected Downing Events shows the expected number of downing events for the block during the simulation. Point to a bar to view the block’s name, RS DECI value and expected number of downing events.
Block Throughput shows the total number of units processed/produced by the block during the simulation time. Point to a bar to view the block’s name, utilization percentage and throughput values.
Block Excess Capacity shows the additional number of units the block could have processed/produced during the simulation. Point to a bar to view the block’s name, utilization percentage and excess capacity values.
Block Backlog shows the total number of units that were backlogged (i.e., waiting to be processed) for the block at the end of the simulation time. Point to a bar to view the block’s name, utilization percentage and backlog values.
Block Backlog Processed shows the total number of units that were backlogged but eventually processed by the block during the simulation time. Point to a bar to view the block’s name, utilization percentage and backlog processed values.
Block Bubble Plot allows you to specify three result types to be plotted against each other for each block. Select one result type for the x-axis and one result type for the y-axis. Select a third result type that will dictate the size of the scatter point for each block; the radius of the point will be proportional to the size of the result value. You can use the slider bar at the bottom of the Available Results area on the control panel to set the maximum point size. Point to a data point to view the three selected metrics for the block.
Click here to see the result types that are available for use in the plot.
Uptime: The total amount of time that the block was up (i.e., operational) during the simulation.
Downtime: The total amount of time that the block was down (i.e., not operational) during the simulation.
Active Downtime: For contained standby blocks, the amount of time that the block was down while in an active state during the simulation.
Quiescent Downtime: For contained standby blocks, the amount of time that the block was down while in a quiescent (i.e., standby) state during the simulation.
Mean Downtime per Event: The average downtime between failed events for the block during the simulation.
RS DECI: The ReliaSoft Downing Event Criticality Index for the block. This is a relative index showing the percentage of times that a downing event of the block caused the system to go down (i.e., the number of system downing events caused by the block divided by the total number of system downing events).
MTBDE: The mean time between downing events for the block during the simulation.
RS FCI: The ReliaSoft Failure Criticality Index for the block. This is a relative index showing the percentage of times that a failure of the block caused a system failure (i.e., the number of system failures caused by the block divided by the total number of system failures). Note that this relates to all failures, not just downing failures.
MTBF: The mean time between failures for the block during the simulation.
RS DTCI: The ReliaSoft Downtime Criticality Index for the block. This is a relative index showing the contribution of the block to the system’s downtime (i.e., the system downtime caused by a particular block divided by the total system downtime).
Number of CMs: The total number of corrective tasks performed on the block during the simulation.
CM Downtime: The total amount of time that the block was down (i.e., not operational) due to corrective maintenance during the simulation.
Number of Inspections: The total number of inspections performed on the block during the simulation.
Inspection Downtime: The total amount of time that the block was down (i.e., not operational) due to an inspection during the simulation.
Number of PMs: The total number of preventive tasks performed on the block during the simulation.
PM Downtime: The total amount of time that the block was down (i.e., not operational) due to a preventive task during the simulation.
Number of OCs: The total number of on condition tasks performed on the block during the simulation.
OC Downtime: The total amount of time that the block was down (i.e., not operational) due to an on condition task during the simulation.
Number of OFFs: The total number of times that the block was turned off due to state change triggers during the simulation.
OFF Downtime: The total amount of time that the block was off due to state change triggers during the simulation.
Total Cost CM: The total costs due to corrective tasks that accrued during the simulation time. This includes costs associated with the crews and spare part pools used for the tasks, as well as any downtime costs and additional per-task costs.
Total Cost IN: The total costs due to inspection tasks that accrued during the simulation time. This includes costs associated with the crews used for the tasks, as well as any downtime costs and additional per-task costs.
Total Cost PM: The total costs due to preventive tasks that accrued during the simulation time. This includes costs associated with the crews and spare part pools used for the tasks, as well as any downtime costs and additional per-task costs.
Total Cost OC: The total costs due to on condition tasks that accrued during the simulation time. This includes costs associated with the crews and spare part pools used for the tasks, as well as any downtime costs and additional per-task costs.
Total Cost: The total cost that accrued during the simulation time for the block, which is based on the maintenance properties, policies, crews and spare part pools costs.
Throughput Excess Capacity: The additional number of units the block could have processed/produced during the simulation. The excess capacity will be calculated only if you selected to run a throughput simulation in the Maintainability/Availability Simulation window.
Throughput Backlog: The total number of backlogged units (i.e., units waiting to be processed/produced) for the block at the end of the simulation. This is based on whether the block can accept a backlog and how the backlog units were allocated, as specified in the Block Properties window and Maintainability/Availability Simulation window.
Throughput Backlog Processed: The total number of units that were backlogged but eventually processed/produced by the block during the simulation.
Throughput Backlog Excess: The number of backlogged units that were rejected (i.e., not processed/produced) by the block during the simulation. Backlogged units will be rejected if the block has a limited backlog (i.e., a limit to the number of units that can be stored in the backlog).
Throughput Max Uptime Capacity: The maximum number of units the block could have processed/produced while it was up during the simulation.
Throughput Uptime Utilization: The percent of units the block actually produced/processed of what it could have processed/produced while it was up during the simulation. (i.e., the ratio of the block throughput and the block uptime capacity.)
Throughput Max Capacity: The maximum capacity of the block, which is the maximum number of units the block could have processed/produced during the simulation.
Throughput Actual Utilization: The percent of units the block actually produced/processed of what it could have produced/processed (i.e., the ratio of the block throughput and the block maximum capacity).
Crews plots display information about the crews that are used in simulation of the system. These plots are available only if your analysis includes maintenance tasks that use defined crews.
For crews plots, when you first select the plot, you must specify which crews to include by using the Available Crews area of the control panel to select which crews to view.
Crew Accepted Calls shows the total number of calls that each crew accepted during the simulation time. Point to a bar to view the crew’s name, percentage of calls accepted and number of accepted calls.
Crew Rejected Calls shows the total number of calls that each crew rejected during the simulation time. Point to a bar to view the crew’s name, percentage of calls accepted and number of rejected calls.
Crew Costs shows the costs incurred by each crew during the simulation time. Point to a bar to view the crew’s name, percentage of calls accepted and total costs.
Crew Time Used shows the amount of time used by each crew during the simulation time. Point to a bar to view the crew’s name, percentage of calls accepted and time used.
Spare part pools plots display information about the spare part pools that are used in simulation of the system. These plots are available only if your analysis includes maintenance tasks that use defined spare part pools.
For spare part pools plots, when you first select the plot, you must specify which pools to include by using the Available Pools area of the control panel to select which pools to view.
Pool Average Stock Level shows the average number of spare parts in the pool during the simulation time. Point to a bar to view the pool name and average stock level.
Pool Items Dispensed shows the average amount of spare parts dispensed during the simulation time. Point to a bar to view the pool name and number of items dispensed.
Pool Average Time to Dispense shows the average amount of time taken to dispense items during the simulation time. Point to a bar to view the pool name and average time to dispense items.
Pool Rejected Calls shows the average number of calls rejected by the pool during the simulation time. Point to a bar to view the pool name and number of rejected calls.
Pool Emergency Calls shows the average number of emergency restock calls by the pool during the simulation time. Point to a bar to view the pool name and number of emergency calls.
Pool Costs shows the average cost of the pools during the simulation time. Point to a bar to view the pool name and pool cost.
Pool Cost Per Item shows the average cost of the items in each pool during the simulation time. Point to a bar to view the pool name and cost per item.
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