Technical training
Basic Technical Training Standard / V9 2024-06-24
LESSON 4 - THE PRINCIPLES OF BOLTED AND WELDED CONNECTIONS
95 min.
The aim of this lesson is to give participants an understanding of bolted and welded connections and their inspection.
ELEMENT 4.1 - THE PRINCIPLES OF BOLTED CONNECTIONS
Learning objective:
35) The participants can discuss the principles of bolted connections (Knowledge, intermediate level)
36) The participants can explain proper care of fasteners ensuring their integrity and quality as well as potential consequences of not ensuring their integrity and quality (Knowledge, intermediate level)
37) The participants can describe the concept and basic principles of yield strength and tensile strength and the relationship to lubrication and residual bolt load (Knowledge, basic level)
38) The participants can take responsibility for always tightening bolts and screws correctly (Ability, intermediate level)
The instructor shall:
Explain how to identify different types of bolts according to:
a.
dimensions
b.
threat type
c. material and treatments (hot dip galvanized, electroplated, stainless steel, pre-lubricated, etc.)
d.
quality
e. explain how bolt strength is proportional to the size of the bolt and dependent on material and quality
f.
examples of bolted connections:
f.i
drive shafts
f.ii
gear box connections
f.iii blade root end connections
f.iv tower sections
Global Wind Organisation / www.globalwindsafety.org
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