1. AREMA VIBRATION REQUIREMENTS - UPDATE October 9, 2003

2. 2 AGENDA Review AREMA Vibration Guidelines Review Project Scope Methodology Progress Next Steps

3. 3 AREMA Vibration Guidelines Summary of Test Recommendations Section 11.5.1 Sinusoidal Vibration Test Exploratory Sine Sweep (identify resonance) Mechanical Shock ex) Class A Sinusoidal –Range / Levels 5 to 20 Hz:0.2” peak-peak 20 to 200 Hz:4.2 g-peak –12 Minute Sweeps (0.9 Octave/Minute) –4 Hours per Axis (20 cycles)

4. 4 Review Project Scope Re-evaluate Current Specification. –Current Spec - Accurately characterize environment? –Possible over-test condition. –Goal: Develop scientific basis for vibration test specification. Ensures durable and reliable products. Avoids unnecessary design and test cost in new products. Field Study and Report –Four railroad sites for data acquisition. –Limit scope to Class A. –ALSTOM investment, will share data and results with Committee. –Full Presentation and Recommendation at C38, Spring 2004.

5. 5 Methodology LMS Engineering Services contracted by ALSTOM –Leader in the Vibration Industry –State-of-the-art Equipment and Analysis Tools –Experience in Specification Development –Strong Project Management Statistical Analysis of Environment to identify –Fatigue Damage Spectrum (FDS) (WEAR) –Maximum Response Spectrum (MRS) (OVERSTESS)

6. 6 Methodology

7. 7 PROGRESS - Site 1 BNSF Data capture completed, Analysis in Progress

8. 8 Progress & Next Steps

9. 9 Next Steps Complete Analysis of BNSF DataLMS Oct/Nov ‘03 Complete Data Collection CNLMS, ALSTOM Oct ‘03 Walk-through & Data Collection CPLMS, ALSTOM, CP Nov ‘03 Identify Site #4Committee 38 Oct. 9, 2003 Walk-through & Data Collection #4LMS, ALSTOM, RR Dec ‘03 Complete Data Analysis - all sitesLMS Jan ‘04 Complete Mission SynthesisLMS Feb ‘04 Present Project to C38LMS, ALSTOM Mar ‘04

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