You won’t be surprised to read that Iowa is big farm country. If you’ve ever driven through the state, you doubtless noticed the vast expanses of land given over to agriculture. By some estimates, ...

The safety of wind turbines can be severely compromised by resonance between wind turbine towers and rotors. Traditional methods for measuring the natural frequency of wind turbine towers require ...

AMES, Iowa – Hydraulic equipment in two civil engineering labs recently pushed and pulled at test sections of a new kind of wind turbine tower, simulating the heavy, twisting loads that towers have to ...