IngersollRand Dynamic Engineering

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Ingersoll-Rand Dynamic Engineering

• James Vopelius
• Chief Engineer
• Douglas Dreese
• Finance Engineer
• Jeffrey Garanich
• Operations Engineer
• Gregory Wessels
• Materials Engineer
• Matthew Wilhide
• Computer/Drafting Engineer

• Mike Scotese
• Primary Contact
• Vern Martin
• Technical Contact
• Dave Pittman
• Operational Consultant

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Ingersoll-RandDD-70 Vibratory Asphalt Compactor
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Variable Amplitude Eccentric
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Initial Goal

• To reduce the vibrations that the operator feels
  below both the desired levels and those levels
  that result in operator discomfort.

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Modified Goal

• Integrate phasing and operator position
  information to completely document the platform
  vibration. This will facilitate the design of an
  isolation system.

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Things Considered

• Reproduction of Ingersoll-Rands test results
• Motion of the platform
• Pitch
• Roll
• Yaw
• Effect of eccentric phasing on platform and
  chassis vibration

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Test Procedure

• Obtained necessary equipment and software
• Determined locations of interest for testing
• Perform testing of machine
• Analysis of acquired data

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Accelerometer Locations (Cab)
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Accelerometer Locations (Base)
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Tests Performed

• Phasing and Vibration Amplitude
• Platform
• Across existing dampers
• Base
• Variation of seat position

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Left Front Plate Response
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Left Front Vs. Right Aft Plate
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Conclusions

• Multi-axial isolation is necessary
• Platform vibration is affected by phasing
• Tradeoff between efficiency and platform
  vibration
• Matthew Lindenburg gets paid too much

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Summary

• Identify Problems
• Define Problem
• Evaluate Impact
• Analyze Causes
• Solution Selections
• Implement Solution
• Results and Tracking