Alessio Torrielli Email and Phone Number

- Lead Senior Engineer, Calculations and Simulations in Offshore Equipment department at Siemens Gamesa RE (September 2021 – up to now). Wind loads of offshore turbine towers during installations (gust buffeting and vortex shedding); wind statistics; non-linear dynamic analysis of group of towers at the port quayside under seismic excitation (analytical, numerical and FEM TRANS analyses); dampening systems; research-projects in collaborations with academia. - Data analyst in Hub Quality department at Vestas A/S (March-September 2021). Collection (SQL & Spotfire) and analysis (Python) of low-/high-frequency data related to the blades hydraulic pitch system, for root cause analysis of turbine shutdowns. - Lifetime extension II of offshore wind farms (January-February 2021). Analysis of service and SCADA data, fatigue damage assessment (based on HAWC2 + FEM simulations).- Structural designer (June-December 2020). FEM analyses (Ansys), design (SolidWorks) and verification (Eurocode & DNV) of offshore steel structures; wind loading of offshore equipment (Mathcad) for wind turbine installation. - Lifetime extension I of offshore wind farms (August 2019 - May 2020). a) Wind and waves statistics of offshore wind farm sites (Python & Matlab); b) Monte Carlo simulations of wind fields; c) reliability analysis of wind turbine main components; d) improvement strategies for old wind turbines and environmental impact study.

Offshore Engineering, Equipment- Wind statistics of pre-assembly sites, analysis of the population extreme winds.- Concept, design and testing of temporary dampers for tower during WTG installation.- Measurement campaigns of tower vibrations, concept, data acquisition and post-processing.- Discussions with Marine Warranty Surveyors (e.g. DNV) on tower dampers and wind loading.- Technical reference for collaborations with external consulting companies.- Technical supervision of team members.

Offshore Engineering, Marine Mechanics and Installations- Global stability and bearing capacity verifications of WTG components in pre-assembly ports.- Wind loading of WTG towers, standing on the quayside or vessel frames.- Wind statistics of pre-assembly sites, analysis of data population and extremes.- Concept, design and testing of temporary dampers for WTG towers during installation.- Tutoring and coaching of junior team members.

Offshore Engineering, Marine Mechanics and Installations- Global stability and bearing capacity of WTG components in the pre-assembly ports.- Optimization of the layout of the harbour pre-assembly area.

School of Civil Engineering:- Probabilistic characterization of extreme winds.- Study of thin-walled steel sheeting subjected to hydrostatic loads. Theoretical analysis and Finite Element simulations (Abaqus).- Reliability analysis of structural systems based on Monte Carlo Simulations (e.g. lifting anchors for precast panels). Contribution to DR AS 3850.1 “Prefabricated concrete elements”, under development.

Temporary/part timeDepartment of Civil Engineering, Chemistry and Environmental.Monte Carlo simulation of long-term time series of the mean wind speed for the probabilistic characterization of extreme winds.

Part of the Geohazard unit within the Offshore/Siting Division. - Probabilistic Seismic Hazard Assessment for platforms, pipelines and other oil and gas facilities.- Analysis of vibration and ground borne noise caused by rail transit.- Earthquake site response.- Probabilistic analysis of soil settlement induced by shaft excavation and tunnel boring machine.- Probabilistic Corrosion Hazard Assessment for onshore and offshore pipelines.- Deep/shallow offshore geotechnical investigations.

Temporary/part time.Department of Civil Engineering, Chemistry and Environmental.Comparison between analytical and simulation-based wind-induced fatigue analyses over steel vertical slender structures.