ILS Tower Design from a Static and Frangibility Perspective. Europoles GmbH & Co KG, Germany Helmut Lieb, R&D
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1 ILS Tower Design from a Static and Frangibility Perspective Europoles GmbH & Co KG, Germany Helmut Lieb, R&D
2 Overview 1. History a) Wood panels pole b) Tapered and anti-tapered c) Export version, cylindrical without resin in the joint 2. Material investigation in fiber glass a) Fiber glass bending and shear tests IMA Dresden (institute for material research and application technology) b) Bolt capacity in fiber glass c) Influence of UV on fiber glass UV loaded fiber glass in comparison to non UV loaded fiber glass d) Influence of temperature on fiber glass together with wind e) Material behavior in respect of damping resonance on wind gusts and further frequencies f) National American Meteorological Service g) Loadcase: temperature, wind h) Design 3. References a) Guam b) Japan c) Schwäbisch Hall 4. Accidents a) Movie b) Pictures 5. Frangibility a) Report NLR b) Tests Concept Graz c) Tests V2V2, Graz d) Tests SES 6. Frangibility design ideas 7. Final Design
3 HISTORY
4 HISTORY wood panels pole
5 HISTORY Tapered and Anti-tapered - Guam
6 HISTORY - Export Version, cylindrical without resin in the joint
7 MATERIAL INVESTIGTION IN FIBER GLASS
8 Fiber Glass Bending and Shear Tests IMA Dresden (Institute for material research and application technology)
9 Fiber Glass Bending and Shear Tests IMA Dresden (Institute for material research and application technology)
10 Bolt Capacity in Fiber Glass
11 Bolt Capacity in Fiber Glass
12 Bolt Capacity in Fiber Glass
13 Influence UV on Fiber Glass UV loaded fiber glass in comparison to non UV loaded fiber glass
14 Influence UV on Fiber Glass UV loaded fiber glass in comparison to non UV loaded fiber glass
15 Influence UV on Fiber Glass UV loaded fiber glass in comparison to non UV loaded fiber glass
16 Influence UV on Fiber Glass UV loaded fiber glass in comparison to non UV loaded fiber glass
17 Influence UV on Fiber Glass UV loaded fiber glass in comparison to non UV loaded fiber glass
18 Influence Of Temperature on Fiber Glass
19 Influence Of Temperature on Fiber Glass
20 Material Behavior in Respect of Damping Resonance on wind gusts and further frequencies
21 Material Behavior in Respect of Damping Resonance on wind gusts and further frequencies
22 NATIONAL AMERICAN METEOROLOGICAL SERVICE Mainly 3-hourly readings of temperature and wind speed of the official station of the Oklahoma National American Meteorological Service of the time series from 1986 to 2008 and Mostly 6-hourly readings of temperature and wind speed of the official station of the Wichita Falls American national weather service of the time series
23 Loadcase: Temperature and Wind
24 Loadcase: Temperature and Wind
25 DESIGN
26 DESIGN
27 DESIGN
28 REFERENCES
29 REFERENCES - Guam
30 REFERENCES - Guam
31 REFERENCES - Japan
32 REFERENCES - Japan
33 REFERENCES Schwäbisch Hall
34 REFERENCES Schwäbisch Hall
35 ACCIDENTS
36 ACCIDENTS - movie
37
38
39
40
41 FRANGIBILITY
42 FRANGIBILITY Report NLR, 2003
43 FRANGIBILITY Tests München, movie
44 FRANGIBILITY Tests Leibheim (Concept Graz), movie
45 V01 V03 V02 FRANGIBILITY Tests Graz (Virt. Vehicle Graz) GFK3 comparison crash behavior 0 ms 30 ms 80 ms 120 ms Ansicht von oben
46 V01 V03 V02 FRANGIBILITY Tests Graz (Virt. Vehicle Graz) CGB - comparison crash behavior 0 ms 30 ms 50 ms 120 ms Ansicht von oben
47 FRANGIBILITY - Tests August movie
48 FRANGIBILITY DESIGN IDEAS
49 FRANGIBILITY DESIGN IDEAS
50 FRANGIBILITY DESIGN IDEAS
51 FRANGIBILITY DESIGN IDEAS
52 FRANGIBILITY DESIGN IDEAS
53 FINAL DESIGN
54 FINAL DESIGN - Safety factors along general standard conditions Basic combinations Exceptional design situations Strength Overall stability Local stability Compounds Strength Local stability Overall stability Compounds Fiber composites machined Fiber composites manually crafted Thermoplastics on train Thermoplastics pressure 1,2 1,4 1,2 1,5 1,0 1,2 1,0 1,2 1,5 2,0 1,4 2,0 1,25 1,7 1,25 1,7 1,5* 1,25 1,2* 1,4 1,2 1,4 1,0 1,2 1,0 1,0 Foam on thrust 1,5 1,7 1,2 1,7 Foam on pressure 1,2 1,4 1,2 1,4
55 FINAL DESIGN - Design proposal based on general standard and tests Detecting the operating conditions (calculative reduction) - Duration of exposure For the pole longitudinal the influence factor A1 is: A 1 E = 1,4 for the modulus of elasticity and A 1 f = 2,4 for resistance For the pole tranverse the influence factor A1 is: A 1 E = 3,0 for the modulus of elasticity and A 1 f = 2,4 for resistance - Media influence For both directions the influence factor A2 is: A 2 E = A 2 f = 1,2 for modulus of elasticity and resistance - Temperature effect For the pole longitudinal the influence factor A3 is: A 3 E = 1,6 for the modulus of elasticity at operating temperatures 80 C A 3 E = 1,2 for the modulus of elasticity at operating temperatures 40 C A 3 f = 1,6 for resistance For the pole tranverse the influence factor A3 is: A 3 E = 1,8 for the modulus of elasticity and A 3 f = 1,1 for resistance Basic combination Exceptional design situations strength local stability overall stability strength local stability overall stability 1,2 1,4 1,2 1,0 1,2 1,0
56 FINAL DESIGN - Design proposal for wind speeds
57 THANK YOU 57
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