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Wind and Water Loading on Antennas, Vessels, Buildings and Dams

Wind and Water Loading on Antennas, Vessels, Buildings and Dams

Analysis

FEA
CFD

Objective

Accurate Loads = Accurate Stress and Fatigue Results

A key challenge to any analysis project is load determination, although one can use formulas and code guidelines to approximate wind and water loading (e.g., ASCE/SEI 7-22 which supersedes ASCE 7-16), these approximations provide guidance but can leave structures exposed to unforeseen effects or require unnecessary material additions.With today’s CFD and FEA tools, it is not necessary to guess but just map the actual wind or water induced loading onto the structure. Predictive Engineering has been doing such combined fluid structure interaction (FSI) analyses for many years across diverse industries from automotive, aerospace, civil engineering and military applications. We are particularly proud of our work in the detailed mapping of wind loading onto vibration sensitive structures such as antennas and tall slender ASME Section VIII, Division 2 pressure vessels. Other applications have involved hypersonic aerospace structures down slowly rotating hydroelectric dam impellers. This breath of experience allows us to provide insights and new ideas to our clients regardless of the type of wind or water or squishy material (soil, gravel, mineral processing, etc.) may be interacting with their structure of interest.

Wind and Water Loading on Antennas, Vessels, Buildings and Dams

Wind and Water Loading on Engineered Structures and Systems
For those that are video inclined, this video provides a quick overview of our work on water and wind loading on structures and systems
CFD and FEA Analysis on Antenna – Predictive Engineering FEA and CFD Consulting Engineering Services
Wind Loading on Antenna System for Optimized Tracking Accuracy
CFD wind loading from gentle breezes to hurricane levels were simulated and then mapped onto the antenna system. The mechanical response of the antenna system to wind loading allowed the client to optimize their control algorithm for precision tracking accuracy. Vibration analysis of the system showed that wind loading would not harmonically excite the antenna.
CFD and FEA Analysis on Antenna – Predictive Engineering FEA and CFD Consulting Engineering Services
Wind Loading on Nitrogen Rejection Unit (NRU) Column for Stress and Vibration Analysis
Within our CFD virtual wind tunnel, the NRU column was subjected to wind loading up to 120 mph. These wind loads were mapped onto the FEA structural model for stress analysis and interrogation of the results per ASME Section VIII, Division 2 rules. Vibration analysis showed that the column would not be harmonically excited by the wind loading.
CFD and FEA Stress, Fatigue and Vibration Analysis on NRU Column – ASME Section VIII, Division 2 – Predictive Engineering BPVC Consulting Services
Hydroelectric Turbine Blade CFD Loading to Nozzle Ring Stress and Fatigue Analysis
Hydroelectric dam turbines provide rich territory for the mechanical engineer interested in CFD pressure loading. The turbine is enclosed within a nozzle structure that guides the water flow through the turbine blades. As the blades spin, the tips of the blades create pressure pulses as it sweeps across the inside of the nozzle ring. The magnitude of these pulses can be accurately calculated and then mapped to the FEA model for stress and fatigue analysis.
CFD to FEA Fatigue Analysis on Hydroelectric Dam Turbine and Nozzle Ring – FEA and CFD Engineering Services
Predictive Engineering’s Generalized Fluid-Structure-Interaction (FSI) Experience
Some other projects that our CFD and FEA consulting engineers have tackled over the years. We have experience in explosive decompression to just explosive loading using the ConWep program for the calculation of blast effects from high explosives and weapons. 6
Fluid Structure Interaction (FSI) Experience from Explosion to Wind to Water Hammer – Predictive Engineering FEA and CFD Consultants
Predictive Engineering – The Advantage of Getting it Right the First Time
Predictive Engineering CFD and FEA Engineering Consulting Services – Portland, Oregon, USA