Grouped Data - Crow Extended Example - Revision history

Lisa Hacker at 20:52, 18 September 2023

2023-09-18T20:52:54Z

← Older revision		Revision as of 20:52, 18 September 2023
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	<noinclude>{{Banner RGA Examples}}		<noinclude>{{Banner RGA Examples}}
	''This example appears in the [~~[Crow_Extended\|~~Reliability ~~Growth and Repairable System Analysis Reference]~~]''.		''This example appears in the [https://help.reliasoft.com/reference/reliability_growth_and_repairable_system_analysis Reliability growth reference]''.
	</noinclude>		</noinclude>

David J. Groebel at 17:39, 30 May 2014

2014-05-30T17:39:04Z

← Older revision		Revision as of 17:39, 30 May 2014
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	<p style="clear: both;"></p>		<p style="clear: both;"></p>


	'''Solution'''		'''Solution'''
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	<li>The next figure shows the estimated parameters of the Crow Extended model.		<li>The next figure shows the estimated parameters of the Crow Extended model.

	[[Image:rga9.33.png~~\|thumb~~\|center\|~~650px\|Entered data and the estimated Crow Extended parameters.~~]]		[[Image:rga9.33.png\|center\|600px]]

	</li>		</li>
	<li>Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.		<li>Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.

	[[Image:rga9.34.png~~\|thumb~~\|center\|~~650px\|Calculate the average effectiveness factor for the BC modes using the Function Wizard.~~]]		[[Image:rga9.34.png\|center\|450px]]
	</li>		</li>
	<li>The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.		<li>The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.

	[[Image:rga9.35.png~~\|thumb~~\|center\|~~650px\|Failure Mode Strategy plot.~~]]		[[Image:rga9.35.png\|center\|450px]]
	</li>		</li>
	</ol>		</ol>

David J. Groebel at 23:20, 22 April 2014

2014-04-22T23:20:02Z

← Older revision		Revision as of 23:20, 22 April 2014
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	<noinclude>{{Banner RGA Examples}}		<noinclude>{{Banner RGA Examples}}
	''This example appears in the [[Crow_Extended\|Reliability Growth and Repairable System Analysis Reference ~~book~~]]''.		''This example appears in the [[Crow_Extended\|Reliability Growth and Repairable System Analysis Reference]]''.
	</noinclude>		</noinclude>

Chris Kahn at 00:02, 1 February 2014

2014-02-01T00:02:31Z

← Older revision		Revision as of 00:02, 1 February 2014
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	<li>The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.		<li>The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.

	[[Image:rga9.35.png\|thumb\|center\|~~400px~~\|Failure Mode Strategy plot.]]		[[Image:rga9.35.png\|thumb\|center\|650px\|Failure Mode Strategy plot.]]
	</li>		</li>
	</ol>		</ol>

Chris Kahn at 23:55, 31 January 2014

2014-01-31T23:55:02Z

← Older revision		Revision as of 23:55, 31 January 2014
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	#What percent of the failure intensity will be left in the system due to the BD modes after implementing the delayed fixes?		#What percent of the failure intensity will be left in the system due to the BD modes after implementing the delayed fixes?

	<div style="width: 400px; float: left;">		<div style="width: 400px; float:left;">
	{\|border="1" align="center" style="border-collapse: collapse;" cellpadding="5" cellspacing="5"		{\|border="1" align="center" style="border-collapse: collapse;" cellpadding="5" cellspacing="5"
	\|-		\|-
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	</div>		</div>

	<p style="clear: both;"></p>		<p style="clear: both;"></p>

Chris Kahn at 23:49, 31 January 2014

2014-01-31T23:49:57Z

← Older revision		Revision as of 23:49, 31 January 2014
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	A reliability growth test was conducted for 200 hours. Some of the corrective actions were applied during the test while others were delayed until after the test was completed. The tables below give the data set and the effectiveness factors for the BD modes. Do the following:		A reliability growth test was conducted for 200 hours. Some of the corrective actions were applied during the test while others were delayed until after the test was completed. The tables below give the data set and the effectiveness factors for the BD modes. Do the following:

	1) Estimate the parameters of the Crow Extended model.		#Estimate the parameters of the Crow Extended model.
			#Determine the average effectiveness factor of the BC modes using the Function Wizard.
	2) Determine the average effectiveness factor of the BC modes using the Function Wizard.		#What percent of the failure intensity will be left in the system due to the BD modes after implementing the delayed fixes?

	3) What percent of the failure intensity will be left in the system due to the BD modes after implementing the delayed fixes?

	<div style="width: 400px; float: left;">		<div style="width: 400px; float: left;">
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	'''Solution'''		'''Solution'''
	<br>		<ol>
	1) The next figure shows the estimated parameters of the Crow Extended model.		<li>The next figure shows the estimated parameters of the Crow Extended model.

	~~[[Image:rga9.33.png\|thumb\|center\|400px\|Entered data and the estimated Crow Extended parameters.]]~~

	2) Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. ~~Eff~~. ~~Factor select BC modes, as shown next. Click '''Insert'''~~ and the ~~result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983~~.		[[Image:rga9.33.png\|thumb\|center\|650px\|Entered data and the estimated Crow Extended parameters.]]

	~~[[Image:rga9~~.34.~~png\|thumb\|center\|400px\|Calculate~~ the average effectiveness factor for the BC modes ~~using the Function Wizard~~.]]		</li>
			<li>Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.

	3) The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.		[[Image:rga9.34.png\|thumb\|center\|650px\|Calculate the average effectiveness factor for the BC modes using the Function Wizard.]]
			</li>
			<li>The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.

	[[Image:rga9.35.png\|thumb\|center\|400px\|Failure Mode Strategy plot.]]		[[Image:rga9.35.png\|thumb\|center\|400px\|Failure Mode Strategy plot.]]
			</li>
			</ol>

David J. Groebel at 18:23, 27 January 2014

2014-01-27T18:23:38Z

← Older revision		Revision as of 18:23, 27 January 2014
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	1) The next figure shows the estimated parameters of the Crow Extended model.		1) The next figure shows the estimated parameters of the Crow Extended model.

	[[Image:rga9.33.png\|thumb\|center\|~~300px~~\|Entered data and the estimated Crow Extended parameters.]]		[[Image:rga9.33.png\|thumb\|center\|400px\|Entered data and the estimated Crow Extended parameters.]]

	2) Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.		2) Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.

	[[Image:rga9.34.png\|thumb\|center\|~~300px~~\|Calculate the average effectiveness factor for the BC modes using the Function Wizard.]]		[[Image:rga9.34.png\|thumb\|center\|400px\|Calculate the average effectiveness factor for the BC modes using the Function Wizard.]]

	3) The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.		3) The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.

	[[Image:rga9.35.png\|thumb\|center\|~~300px~~\|Failure Mode Strategy plot.]]		[[Image:rga9.35.png\|thumb\|center\|400px\|Failure Mode Strategy plot.]]

David J. Groebel at 18:16, 27 January 2014

2014-01-27T18:16:02Z

← Older revision		Revision as of 18:16, 27 January 2014
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	\|17\|\| 0.8		\|17\|\| 0.8
	\|}		\|}


	</div>		</div>
	<p style="clear: both;"></p>		<p style="clear: both;"></p>


	'''Solution'''		'''Solution'''

David J. Groebel at 18:15, 27 January 2014

2014-01-27T18:15:48Z

← Older revision		Revision as of 18:15, 27 January 2014
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	\|17\|\| 0.8		\|17\|\| 0.8
	\|}		\|}


	</div>		</div>

David J. Groebel at 18:15, 27 January 2014

2014-01-27T18:15:30Z

← Older revision		Revision as of 18:15, 27 January 2014
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	A reliability growth test was conducted for 200 hours. Some of the corrective actions were applied during the test while others were delayed until after the test was completed. The tables below give the data set and the effectiveness factors for the BD modes. Do the following:		A reliability growth test was conducted for 200 hours. Some of the corrective actions were applied during the test while others were delayed until after the test was completed. The tables below give the data set and the effectiveness factors for the BD modes. Do the following:

	:1) Estimate the parameters of the Crow Extended model.		1) Estimate the parameters of the Crow Extended model.
	:2) Determine the average effectiveness factor of the BC modes using the Function Wizard.
	:3) What percent of the failure intensity will be left in the system due to the BD modes after implementing the delayed fixes?		2) Determine the average effectiveness factor of the BC modes using the Function Wizard.

			3) What percent of the failure intensity will be left in the system due to the BD modes after implementing the delayed fixes?

	<div style="width: 400px; float: left;">		<div style="width: 400px; float: left;">
Line 102:		Line 104:
	</div>		</div>
	<p style="clear: both;"></p>		<p style="clear: both;"></p>


	'''Solution'''		'''Solution'''
	<br>		<br>
	:1) The next figure shows the estimated parameters of the Crow Extended model.		1) The next figure shows the estimated parameters of the Crow Extended model.

	[[Image:rga9.33.png\|thumb\|center\|300px\|Entered data and the estimated Crow Extended parameters.]]		[[Image:rga9.33.png\|thumb\|center\|300px\|Entered data and the estimated Crow Extended parameters.]]

			2) Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.
	:2) Insert a general spreadsheet into the folio, and then access the Function Wizard. In the Function Wizard, select '''Average Effectiveness Factor''' from the list of available functions and under Avg. Eff. Factor select BC modes, as shown next. Click '''Insert''' and the result will be inserted into the general spreadsheet. The average effectiveness factor for the BC modes is 0.6983.

	[[Image:rga9.34.png\|thumb\|center\|300px\|Calculate the average effectiveness factor for the BC modes using the Function Wizard.]]		[[Image:rga9.34.png\|thumb\|center\|300px\|Calculate the average effectiveness factor for the BC modes using the Function Wizard.]]

			3) The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.
	:3) The failure intensity left in the system due to the BD modes can be determined using the Failure Mode Strategy plot, as shown next. Therefore, the failure intensity left in the system due to the BD modes is 1.79%.

	[[Image:rga9.35.png\|thumb\|center\|300px\|Failure Mode Strategy plot.]]		[[Image:rga9.35.png\|thumb\|center\|300px\|Failure Mode Strategy plot.]]