Template:Mixed weibull, other uses - Revision history

Richard House: Redirected page to The Mixed Weibull Distribution#Other Uses for Mixed Weibull

2012-08-15T00:43:28Z

Redirected page to The Mixed Weibull Distribution#Other Uses for Mixed Weibull

← Older revision		Revision as of 00:43, 15 August 2012
Line 1:		Line 1:
	~~===Mixed Weibull, Other Uses===~~		#REDIRECT [[The_Mixed_Weibull_Distribution#Other_Uses_for_Mixed_Weibull]]
	~~====Reliability Bathtub Curves====~~
	A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of the product. In general, the life stages of the product consist of early, chance and wear-out. Weibull++ allows you to plot this by simply selecting the failure rate plot, as shown next.

	[[~~Image:WBfailure rate vs time.png\|center\|250px\|~~ ]]

	~~====Determination of the Burn-in Period====~~
	If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.

Nicolette Young: /* Reliability Bathtub Curves */

2012-04-25T21:33:41Z

Reliability Bathtub Curves

← Older revision		Revision as of 21:33, 25 April 2012
Line 3:		Line 3:
	A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of the product. In general, the life stages of the product consist of early, chance and wear-out. Weibull++ allows you to plot this by simply selecting the failure rate plot, as shown next.		A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of the product. In general, the life stages of the product consist of early, chance and wear-out. Weibull++ allows you to plot this by simply selecting the failure rate plot, as shown next.

	[[Image:WBfailure rate vs time.png\|center\|~~500px~~\| ]]		[[Image:WBfailure rate vs time.png\|center\|250px\| ]]

	====Determination of the Burn-in Period====		====Determination of the Burn-in Period====
	If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.		If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.

Nicolette Young: /* Reliability Bathtub Curves */

2012-03-14T19:03:38Z

Reliability Bathtub Curves

← Older revision		Revision as of 19:03, 14 March 2012
Line 3:		Line 3:
	A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of the product. In general, the life stages of the product consist of early, chance and wear-out. Weibull++ allows you to plot this by simply selecting the failure rate plot, as shown next.		A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of the product. In general, the life stages of the product consist of early, chance and wear-out. Weibull++ allows you to plot this by simply selecting the failure rate plot, as shown next.

	[[Image:~~ldachp10fig5~~.~~gif\|thumb~~\|center\|500px\| ]]		[[Image:WBfailure rate vs time.png\|center\|500px\| ]]

	====Determination of the Burn-in Period====		====Determination of the Burn-in Period====
	If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.		If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.

Harry Guo at 18:21, 14 February 2012

2012-02-14T18:21:04Z

← Older revision		Revision as of 18:21, 14 February 2012
Line 1:		Line 1:

	===Mixed Weibull, Other Uses===		===Mixed Weibull, Other Uses===
	====Reliability Bathtub Curves====		====Reliability Bathtub Curves====
Line 8:		Line 7:
	====Determination of the Burn-in Period====		====Determination of the Burn-in Period====
	If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.		If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.

	~~{{Example:2Subpop Mixed Weibull}}~~

Harry Guo: Created page with ' ===Mixed Weibull, Other Uses=== ====Reliability Bathtub Curves==== A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of t…'

2012-02-14T18:06:29Z

Created page with ' ===Mixed Weibull, Other Uses=== ====Reliability Bathtub Curves==== A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of t…'

New page

===Mixed Weibull, Other Uses===
====Reliability Bathtub Curves====
A reliability bathtub curve is nothing more than the graph of the failure rate versus time, over the life of the product. In general, the life stages of the product consist of early, chance and wear-out. Weibull++ allows you to plot this by simply selecting the failure rate plot, as shown next.

[[Image:ldachp10fig5.gif|thumb|center|500px| ]]

====Determination of the Burn-in Period====
If the failure rate goal is known, then the burn-in period can be found from the failure rate plot by drawing a horizontal line at the failure rate goal level and then finding the intersection with the failure rate curve. Next, drop vertically at the intersection, and read off the burn-in time from the time axis. This burn-in time helps insure that the population will have a failure rate that is at least equal to or lower than the goal after the burn-in period. The same could also be obtained using the Function Wizard and generating different failure rates based on time increments. Using these generated times and the corresponding failure rates, one can decide on the optimum burn-in time versus the corresponding desired failure rate.

{{Example:2Subpop Mixed Weibull}}