Template:Simumatic plots

From ReliaWiki
Jump to navigation Jump to search

Simumatic

The following options on the plot sheet are unique to SimuMatic plots. They allow you to control which elements will be displayed on the plot. See Plots for more general information on plot sheets.

  • Simulation Lines plots the time vs. unreliability line for every simulated data set.
  • True Parameter Line plots the time vs. unreliability line defined by the parameters of the distribution that was used to generated the simulated data. (These parameters are visible on the control panel of the Simulation sheet.)
  • Median Line plots the time vs. unreliability line defined by the median parameters of all generated data sets.
  • Average Line plots the time vs. unreliability line defined by the average parameters of all generated data sets.
  • CB on Reliability and CB on Time plot two-sided confidence bounds on the unreliability vs. time plots. The percentile of the confidence bounds is determined by what you entered for Confidence Bounds on Plot on the Analysis tab of the setup window.
  • For example, if you entered 90% in the setup window and selected CB on Time, then the displayed confidence bounds would mark the simulated time values at the 5th and 95th percentile for every given reliability value. If you entered 90% in the setup window and selected CB on Reliability, then the displayed confidence bounds would mark the simulated reliability values at the 5th and 95th percentile for every given time value.
  • Target plots the target reliability as a point at the intersection of a horizontal line drawn at the target unreliability and a vertical line drawn at the target time. This option is available only if you have specified a target reliability on the Test Design tab of the setup window.

Probability

The Probability plot shows the trend in the probability of failure over time. The plotting positions of the data points are determined by the failure/suspension times in the data set (x-axis) and their corresponding unreliability estimates (y-axis).