What the quality engineer needs to know about vibration testing part2of3
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What the Quality Engineer y gneeds to know about Vibration Testing
Part 2 of 3Part 2 of 3
Wayne Tustin©2011 ASQ & Presentation Wayne Tustin
Presented live on Sep 07th, 2011
http://reliabilitycalendar.org/The_Reliability Calendar/Short Courses/Shliability_Calendar/Short_Courses/Short_Courses.html
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ASQ Reliability DivisionASQ Reliability Division Short Course SeriesShort Course SeriesThe ASQ Reliability Division is pleased to present a regular series of short courses
featuring leading international practitioners, academics and consultantsacademics, and consultants.
The goal is to provide a forum for the basic andThe goal is to provide a forum for the basic and continuing education of reliability
professionals.
http://reliabilitycalendar.org/The_Reliability Calendar/Short Courses/Shliability_Calendar/Short_Courses/Short_Courses.html
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What the Quality Engineer needs to know about Vibra7on
Wayne Tus7n Equipment Reliability Ins7tute
Santa Barbara, California www.equipment-‐reliability.com
805-‐564-‐1260 September 7, 2011
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Video Clip 1 Tacoma Narrows Bridge
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courtesy Lansmont
Figure 1 Servohydraulic vibration platform
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Video-‐Clip 13-‐0
courtesy DDL, Inc.
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courtesy NTS Fullerton and Team Corporation
Video Clip 13-1 Horizontal Shaking
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Video-‐Clip 13-‐2 More NEBS Tes7ng
U.S. Army Engineer Research and Development Center
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Figure 2
Force is perpendicular to both the ac current and the magnetic field and reverses when ac current reverses.
ac
ac
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Figure 2A
Force is perpendicular to both the ac current and the magnetic field and reverses when ac current reverses.
ac
ac
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Figure 2B
Force is perpendicular to both the ac current and the magnetic field and reverses when ac current reverses.
ac
ac
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Figure 2C
Force is perpendicular to both the ac current and the magnetic field and reverses when ac current reverses.
ac
ac
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F = MA
Force = Mass x Accelera7on
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TABLE – K1A MAGNESIUM OR ALUMALLOY CASTING
OR WELDMENT
DRIVER COIL
Figure 3
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Figure 4
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Figure 5
courtesy of LDS
AC DC
flexure table
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courtesy Data Physics
Figure 5A Power Amplifier
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Figure 5B Controller and Connections
courtesy Vibration Research
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Figure 6
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Figure 7
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courtesy LDS
Figure 8
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courtesy Elite Electronic Eng
Figure 9 Chamber and slip table
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7me
accelera7o
n en
ergy
frequency
Figure 10
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Figure 11
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Figure 12
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Figure 13 M
agni
tude
Time
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Figure 14
A = 440 Hz
A = 440, 880, 1320, 1760, etc.
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Figure 15
A = 440 Hz
A = 440, 880, 1320, 1760, etc.
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Figure 16
A = 440 Hz
A = 440, 880, 1320, 1760, etc.
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Figure 17
A = 440, 880, 1320, 1760, etc.
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Figure 18
A = 440, 880, 1320, 1760, etc.
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Another continuous spectrum
Figure 19
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Figure 20
what domain?
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Video Clip 20-6 Detroit Street
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Figure 21
courtesy Dytran
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Figure 22
courtesy PCB
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Figure 23
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courtesy John Starr
Animation 10-1
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Review
Sinusoidal forcing
Complex and random vibra7on
Effect of random vibra7on
Need for mul7ple shakers
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What the Quality Engineer needs to know about Vibra7on
Wayne Tus7n Equipment Reliability Ins7tute
Santa Barbara, California www.equipment-‐reliability.com
805-‐564-‐1260