Transport EndCapA

1
Transport EndCap-A

• Design Test
• Corijn Snippe, March 2005

2
Introduction

• Cylinder box and transport frame design
• Spring configuration
• Test setup
• Test results
• Conclusions and recommendations

3
Box and transport frame design
4
Box and transport frame design
5
Spring configuration
6
Spring configuration
4x WR20-800-08
6x WR20-600-08
7
FE model
Each beam X-section own color
Cylinder each non-structural mass own color
8
Test setup

• 4 shock loggers
• transport frame
• cylinder frame
• dummy cylinder, front end
• dummy cylinder, rear end
• 3 displacement meters
• horizontal between transport and cylinder frame
• vertical between transport and cylinder frame
• horizontal between frame and dummy cylinder

9
Test setup
10
Test setup

• Loading and unloading
• Driving through built area, braking and
  accelerating
• Driving on highway, 80 km/h and curves
• Emergency stops at 10, 20 and 40 km/h
• Speed bumps and kerb strikes

11
Test results

• Shock loggers, loading and unloading

Maximum Transport frame, 0.8g sideways
Maximum Dummy cylinder (light side), 0.17g axial
direction
12
Test results

• shock loggers, bumps (transport frame position)

13
Test results

• shock loggers, bumps (cylinder position)

14
Test results

• Shock loggers, emergency stop

15
Test results

• Shock loggers, emergency stop

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Shocklog results, summary
NOTE first value bumpy road / second value
emergency stop
17
Test results

• Displacement meters, residential area

Max horizontal displacement 1.5 1.2 2.7 mm
at 6 Hz ? amax,cylinder 0.39g (w.r.t. truck)
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Test results

• Displacement meters, highway

Max horizontal displacement 1.0 0.2 1.2 mm
at 7 Hz ? amax,cylinder 0.24g (w.r.t. truck)
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Test results

• Displacement meters, emergency stop

Max horizontal displacement (min to max) 12.6
9.2 21.8 mm at 2.5 Hz ? amax,cylinder 0.27g
(w.r.t. truck)
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Conclusions / recommendations

• Shock loggers
• Shocks in driving direction are always amplified
  in driving direction, but never more than a
  factor 2
• Specifications regarding the maximum acceleration
  of 4g are met
• Displacement meters
• The maximum displacement in driving direction
  between cylinder and cylinder box is 9.2 mm,
  there should be space for all components to
  account for this displacement
• Compare with calculation results (spring
  configuration and box design)

21
Conclusions / recommendations

• Design
• An extra rubber isolator will be placed to limit
  the transmissivity (only in driving direction)
  between the cylinder and the cylinder box.

22
To do

• Adapt FE model to correct input (loads, dummy
  cylinder instead of real cylinder)
• Simulate real model with adapted input
• Write instructions for EndCap transport to CERN
• Driving
• Loading/unloading