ChiAha
  • ReliaSim Overview
    • Getting Started
    • Navigation
    • Structure
      • Node Types
        • Buffers
        • Constraints
          • Limits
          • Interrupts
            • Interrupt Types
            • Time to Failure
            • Time to Repair
            • Distributions
              • Fixed Distribution
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              • Normal Distribution
              • Weibull Distribution
              • LogNormal Distribution
              • Johnson SU Distribution
        • Splits
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        • Conversions
    • Experiments
      • Experiment Types
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    • Reports
      • OEE
      • Single Run Results
      • Multi-Run Results
      • Buffer Trade-off Results
      • Interrupt Loss/Gain Results
  • ChiAha Discrete Rate Simulation
    • Example
    • References
  • Building your first model
    • Structure
    • Node View
    • Conversions
    • Interrupts
    • Experiments and Reporting
    • Saving your model
  • Another Example Model
    • Basic Structure
    • Conversions
    • Splits and Merges
    • Full Structure
    • Node View
      • Units and Conversions
      • Rates and Buffers
    • Interrupts
    • Experiments
      • Single Run
      • Interrupt Loss/Gain
      • Buffer Tradeoff
    • Summary
  • Wishbone Overview
    • Video Overview
    • Loading a File
    • Excluding Cause Groups
    • Mapping Cause Groups
    • Reviewing Estimates
  • Model Building with Markdown
    • The Click-Connect System
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  1. ReliaSim Overview
  2. Structure
  3. Node Types

Constraints

On this screen, the user will define the rate limit and interrupts for each constraint in the model.

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Last updated 9 months ago

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The Constraint node represents a step in a manufacturing process that has a throughput rate and the possibility of interrupts.

The Constraint node can:

  • Represent a Machine, System, Sub-component

  • Process material based on rate per time unit

  • Experience Interrupts - random, wearout and re-supply, etc

When the machine is running it tracks material production, but there are several things that can happen to stop the flow of production:

  • Machine Failure

  • Scheduled Event

  • Operational Decision

In real systems this data is collected and stored as stops data in a Line Event Data System (LEDS). This data is often referred to as LEDS Data.

In Wishbone, another ChiAha software, we can transform the LEDS Data from Stops into . The Interrupts model the underlying for time to failure and time to repair (/).

Interrupts
distributions
TTF
TTR
Constraint Icon