Fifth wheel test machine project concept evaluation
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Fifth Wheel Test Machine Project Concept Evaluation. Group members: Jonathan Eckart Wayne Farley Rob Grace Chris Bozarth Academic advisor: Dr. Faryar Etesami. Preview. Introduction Design Concepts Scoring Matrix Conclusion. SOLID MOUNT FRAME. SIMPLEX 400 ®. SLIDING MOUNT.

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Fifth wheel test machine project concept evaluation l.jpg
Fifth Wheel Test Machine ProjectConcept Evaluation

Group members:

Jonathan Eckart

Wayne Farley

Rob Grace

Chris Bozarth

Academic advisor:

Dr. Faryar Etesami


Preview l.jpg
Preview

  • Introduction

  • Design Concepts

  • Scoring Matrix

  • Conclusion

SOLID MOUNT FRAME

SIMPLEX 400®

SLIDING MOUNT


Introduction l.jpg
Introduction

  • Fifth wheel – trailer to truck connection

  • ConMet wants a machine to test ultimate strength of fifth wheels in axial direction

  • Test machine must have:

    - Adjustable width and height for different models of fifth wheels

    - Data acquisition: need to know forces required to fail fifth wheel

300kip


Rail cart concept l.jpg
Rail Cart Concept

  • Fifth wheel mounts to cart

  • Kingpin is fixed

  • Hydraulic cylinder pushes cart


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Power Screw Concept

  • Power screw load delivery

  • Load cell measures force


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Sliding Adjustment Concept

  • Posts slide inside rect. tube

  • Power screws adjust fifth wheel height

  • Hydraulic cylinder pulls kingpin



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Plate and Screw Concept

  • Screw adjusts width

  • Pin placed through rail and plate

  • Hydraulic jack adjusts height of platform


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Cylinder Mount Concept

  • Centerline adjustment with slotted plate

  • Alternative form would allow vertical adjustment of cylinder


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Pivot Arm Concept

  • Arm with kingpin mounts to cylinder rod

  • Arm can pivot away from fifth wheel assembly


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Mechanical Advantage Concept

  • Lever arm multiplies force of cylinder

  • Vertical layout



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Conclusion

  • 7 different concepts

  • No single concept itself will do the best job

  • Final concept will use a combination of ideas from the concepts generated


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General Concept

1. Hydraulic cylinder will be used to apply force to fifth wheel.

2. Slotted plate used for width adjustment

3. Hydraulic cylinder moves for height adjustment

4. Pivot points on ends of cylinder

5. Adapter plate for kingpin-cylinder connection


Hydraulic cylinder l.jpg

Hydraulic Cylinder

12” DIA BORE CYLINDER CAN DEVELOP >339000 LBS OF FORCE USING 3000 PSI PUMP

LIFTING POINTS

PIVOT POINTS



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