Assessment of the Response of Offshore Monopile Foundations to Vibratory Hammer Action: A parametric study to the response of offshore monopile foundations to a proper definition of a vibratory hammer including imperfections

The demand for wind energy has led to the need for larger offshore wind turbines, which require larger monopiles for support. Vibratory pile driving is a common technique for installing these monopiles, but current engineering models are designed for smaller diameter monopiles and may not be applicable to larger ones. Additionally, the vibratory...

Design and analysis of a wedge connection for offshore foundations

The offshore wind industry is developing larger turbines, often placed in deeper water. This requires larger foundations. The predominant foundation type is the steel monopile, typically consisting of two large diameter pipes, the monopile (MP) and the transition piece (TP). The Wedge Connection is a new type of connection between these...

The Hybrid Monopile: Design of a novel foundation structure for large offshore wind turbines in intermediate water depths

In the 26 years since the first offshore wind farm was installed in Vindeby, Denmark, the offshore wind industry has undergone remarkable growth. Recently, this growth has accelerated, advancing farms rapidly into deeper water and utilizing larger turbines. As offshore wind farm developers continue to look towards heavier, higher capacity...

Determination of Fatigue Assessment of Monopile - Based Offshore Wind Turbines through Fidelity Quantification

The application of stability checks in simulated offshore wind structures is performed through tools that are established in the offshore wind industry. In particular, the structure should fulfill certain strength and fatigue criteria among which Fatigue Limit States (FLSs) checks are critical. In terms of the process, fatigue assessment can be...

Noise reduction for offshore pile-driving of monopiles

The demand for offshore wind farms is developing rapidly due to the increased demand for renewable energy. Installation of foundation piles for offshore wind, however, are accompanied by a serious by-product which is the high underwater noise levels emitted during the pile-driving process. Current mitigation methods have proven to decrease the...