IngersollRand Vibration Isolation Blue

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• Ingersoll-Rand Vibration Isolation -Blue
• better known as...
• Smooth Operators

Group Members- Bob Bartholomew Dave Duffey
J.D. Emilio Shawn Hricko Rob Mangerie
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Project Objective

• Develop, Design, and perhaps implement a method
  to eliminate or reduce operator exposure to
  vibration.
• ISO Standard
• Hands/Arm lt 2.5 m/s2
• Feet lt 0.5 m/s2
• Seat lt 0.5 m/s2
• Current Accelerations Experienced
• Right Hand 4.63 m/s2
• Right Foot 0.421 m/s2
• Max seat Vibration 0.413 m/s2

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Current Isolation System
The current isolation method utilizes four
elastomer bushings to isolate the operator
platform from the machine frame.
Operator Platform
Machine Frame
Mounting of two rear platform bushings
Rear Bushings
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Analysis of Current Design

• Performance of current isolation method evaluated
  in various conditions
• Front mounts 96-97
• Rear mounts 86-91
• Current mount only allows for damping in the
  upward motion of machine

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Market Survey

• LORD
• HYSTEC mount
• Conical mount
• Motion Master
• Firestone
• Air spring
• Isolation pad for console/seat mount

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Isolation Concepts

• HYSTEC mount (front) with air springs (rear) with
  or without hinge
• Conical mount (front) with air springs (rear)
  with or without hinge
• Four air springs with retaining post
• LORD Motion Master
• Elastomer pad between seat/console mount and
  thrust washer

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Eliminated Concepts

• LORD Motion Master
• Harsh application environment
• Suitable for larger vibration amplitudes
• Four air springs with retaining posts
• Low stability and poor radial stiffness
• R.O.P.S. issues
• Hinge mount
• Amplitudes not significant enough to justify

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Final Designs - Evaluation

• HYSTEC mount (front), air springs (rear)
• Great structural rigidity for R.O.P.S
• 99.5 isolation
• Adjustable
• Some modification needed
• More expensive
• Conical Mount (front), air springs (rear)
• Good structural rigidity for R.O.P.S
• 99 isolation
• Easily retrofitted to current machine design

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HYSTEC mount
Air spring
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Elastomer Pad Between Console Base and Thrust
Mount
Proposed pad location
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Deliverables

• Suitable products specified
• Scale model mock-ups of each suggested mount
  on DD70 machine frame

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Thank You