ORBIGate DemoData - Revision history

Lmagimel at 09:07, 26 November 2024

2024-11-26T09:07:18Z

← Older revision		Revision as of 11:07, 26 November 2024
Line 1:		Line 1:
			[[category:WikiOros]]
	How to demonstrate ORBIGate 6 :		How to demonstrate ORBIGate 6 :

Lmagimel: /* Oil instability diagnostic */

2020-07-07T09:19:53Z

Oil instability diagnostic

← Older revision		Revision as of 11:19, 7 July 2020
Line 27:		Line 27:
	===Oil instability diagnostic===		===Oil instability diagnostic===

	* In File tab, "load measurement", select the ''demo_rotokit_OROS.obg''		* In File tab, "load measurement", select the ''[https://orossas.sharepoint.com/:u:/g/support/EQJHQwFqs95OvvYFZUooVTwBZK_kRgFA_VYdexzfdhaLNg?e=CFKw5c demo_rotokit_OROS.obg]''

	* Add/Remove result window to display :		* Add/Remove result window to display :

Lmagimel: /* Introduction */

2020-07-07T09:16:45Z

Introduction

← Older revision		Revision as of 11:16, 7 July 2020
Line 14:		Line 14:
	To display result, use this icon:		To display result, use this icon:
	[[Image:HowToDemo_ORBIGate_04.png\|framed\|none]]		[[Image:HowToDemo_ORBIGate_04.png\|framed\|none]]

			== Rotor Kit sensor picture==
			===Rotor Kit===
			[[Image:Rotor_kit_01.png\|framed\|none]]
			===Keyphasor===
			[[Image:Rotor_kit_02.png\|framed\|none]]
			===Sensor===
			[[Image:Rotor_kit_03.png\|framed\|none]]

	==Instructions==		==Instructions==

Lmagimel: /* Oil instability diagnostic */

2020-07-07T09:12:06Z

Oil instability diagnostic

← Older revision		Revision as of 11:12, 7 July 2020
Line 31:		Line 31:
	However there is a speed range while overall level is higher than 1X level.		However there is a speed range while overall level is higher than 1X level.

	~~[[Image:HowToDemo_ORBIGate_01.png]]~~

	[[Image:HowToDemo_ORBIGate_06.png\|framed\|none]]		[[Image:HowToDemo_ORBIGate_06.png\|framed\|none]]

Lmagimel at 09:11, 7 July 2020

2020-07-07T09:11:45Z

← Older revision		Revision as of 11:11, 7 July 2020
Line 1:		Line 1:
	~~<font color="#4F81BD">~~
	~~[[Image:HowToDemo_ORBIGate_02.png\|framed\|none]]~~
	~~</font>~~

	~~===~~How to demonstrate ORBIGate 6~~===~~		How to demonstrate ORBIGate 6 :

	~~{\|border="2" cellspacing="0" cellpadding="4" width="53%" align="center"~~
	~~\|align = "center"\| ~~
	~~\|align = "center"\|''Edition''~~

	\|-
	~~\|align = "center"\|Version~~
	~~\|align = "center"\|1~~

	\|-
	~~\|align = "center"\|Date:~~
	~~\|align = "center"\|22/07/19~~

	~~\|}<br clear="all">~~

	~~{\|border="0" cellspacing="2" width="100%"~~
	~~\| ~~
	\|
	~~[[Image:HowToDemo_ORBIGate_03.gif\|framed\|none]]~~

	~~\| ~~
	~~\| ~~

	\|}

	~~----~~

	==Introduction==		==Introduction==

Lmagimel: Created page with " none ===How to demonstrate ORBIGate 6=== {|border="2" cellspacing="0" cellpadding="4" width="53%" a..."

2020-07-07T09:11:06Z

Created page with " framed|none ===How to demonstrate ORBIGate 6=== {|border="2" cellspacing="0" cellpadding="4" width="53%" a..."

New page

[[Image:HowToDemo_ORBIGate_02.png|framed|none]]


===How to demonstrate ORBIGate 6===

{|border="2" cellspacing="0" cellpadding="4" width="53%" align="center"
|align = "center"| 
|align = "center"|''Edition''

|-
|align = "center"|Version
|align = "center"|1

|-
|align = "center"|Date:
|align = "center"|22/07/19

|} 

{|border="0" cellspacing="2" width="100%"
| 
|
[[Image:HowToDemo_ORBIGate_03.gif|framed|none]]

| 
| 

|}

----

==Introduction==

This document shows a way to demonstrate the main features of ORBIGate 6.x through a scenario. The used data come from measurements on a rotor kit equipped with fluid bearings.

The data contain 2 major issues:

* Oil Instability causing subharmonic phenomenon
* Critical speed causing large orbit

To display result, use this icon:
[[Image:HowToDemo_ORBIGate_04.png|framed|none]]

==Instructions==

===Oil instability diagnostic===

* In File tab, "load measurement", select the ''demo_rotokit_OROS.obg''

* Add/Remove result window to display :
* Speed profile
* Bode Plot vs RPM of 1X <nowiki>[</nowiki>RMS<nowiki>]</nowiki> overlaid by profile OVL <nowiki>[</nowiki>RMS<nowiki>]</nowiki> vs RPM

[[Image:HowToDemo_ORBIGate_05.png|framed|none]]

For a good health machine, 1X should be overlaid with Overall because there is only imbalance.

However there is a speed range while overall level is higher than 1X level.

[[Image:HowToDemo_ORBIGate_01.png]]

[[Image:HowToDemo_ORBIGate_06.png|framed|none]]

* To investigate what orders (in addition to 1X) are carrying energy in this speed range, let<nowiki>'</nowiki>s display the synch spectrum:

[[Image:HowToDemo_ORBIGate_07.png|framed|none]]

* Place navigation cursor in the speed range of interest and look at the synch order spectrum:

[[Image:HowToDemo_ORBIGate_08.png|framed|none]]

* Subharmonic issue occurs in this speed range

* Place windows cursor in the order spectrum to know which is subharmonic order

[[Image:HowToDemo_ORBIGate_09.png|framed|none]]

* 0.375 order means the issue cycle is completed roughly each 3 revolutions, so it could be helpful to display orbits (3 displayed revolutions)

----

* First, display raw orbit

[[Image:HowToDemo_ORBIGate_10.png|framed|none]]

* Then, change analysis settings to display 3 orbits
*

[[Image:HowToDemo_ORBIGate_11.png|framed|none]]

* To generate report for this first issue, let<nowiki>'</nowiki>s hide the second issue (critical speed). So let<nowiki>'</nowiki>s focus on data related to oil instability. Select the data range of interest (with the mouse on the blue bar)

[[Image:HowToDemo_ORBIGate_12.png|framed|none]]

* Then the bode plot looks like this view:

[[Image:HowToDemo_ORBIGate_13.png|framed|none]]

* Place the cursor to display relevant result and generate a report:

[[Image:HowToDemo_ORBIGate_14.png|framed|none]]

===Critical speed===
Let<nowiki>'</nowiki>s focus now at the critical speed to know the frequency of the first bending shaft mode and the orbit size at this frequency

* Change the data around the critical speed

[[Image:HowToDemo_ORBIGate_15.png|framed|none]]

* Add Smax (orbit size) to the window2 so that the SMAX is display with 1X and Overall

[[Image:HowToDemo_ORBIGate_16.png|framed|none]]

* Place the cursor at the critical speed and generate a new report

----

===Shaft center line===

How to display the shaft center line and use the GAP reference:

* Display the shaftcenter line:

[[Image:HowToDemo_ORBIGate_17.png|framed|none]]

* The shaft centerline is not perfectly starting from the clearance circle, so we need to reset the gap reference at the lowest speed (when the shaft is assumed to lay at the bearing bottom).

* Select the lowest speed with the navigation cursor and press on GAP reference:

[[Image:HowToDemo_ORBIGate_18.png|framed|none]]

The shaft center line is now starting at the bottom of the clearance circle

All this demo have been done in the navigation mode, no need to post-analyze signal, all results are saved during the measurement !