Template:Loglogistic reliability function
Jump to navigation
Jump to search
The Loglogistic Reliability Function
The reliability for a mission of time [math]\displaystyle{ T }[/math] , starting at age 0, for the loglogistic distribution is determined by:
- [math]\displaystyle{ R=\frac{1}{1+{{e}^{z}}} }[/math]
where:
- [math]\displaystyle{ z=\frac{{t}'-\mu }{\sigma } }[/math]
- [math]\displaystyle{ {t}'=\ln (t) }[/math]
The unreliability function is:
- [math]\displaystyle{ F=\frac{{{e}^{z}}}{1+{{e}^{z}}} }[/math]