The Basics of Bolted Joints in Wind Turbines

Wind turbines are held together with bolted joints that are under constant attack from vibration, fatigue, corrosion and bolt relaxation.

Windpower Engineering magazine lists a few things professionals in the wind industry – especially those in the market for new wind turbine torque tools – should know about tightening and tensioning.

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The Top 5 Reasons Why Nuts and Bolts Come Loose

Industrial bolts are used in various applications and environments, and feature an advantage that isn’t present in other fastening methods: they can be loosened as needed.

But with this advantage comes a problem: nuts and bolts can come loose without warning. In this blog post, we’ll look at some of the ways that can happen.

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Examples of Bolt Failure

Failure of an M24 Engine Mounting BoltThere are a number of ways in which bolting failures can occur, whether due to improper maintenance, installation or materials.

In this week’s blog post we’ll look at a few examples of bolt failure and how they were corrected.

Failure of an M24 Engine Mounting Bolt

Fastener Technology Magazine explored this concept a few years ago.

In this case, an M24 property class 8.8 bolt was used to secure an engine mount to the chassis of a bus. After the bus had been in service for a while, bolts began to come loose and in some cases fail.

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