Abstract
Due to environmental pollution and depletion of fossil fuels, hydrogen is becoming an increasingly practical, clean and environmentally friendly option for transportation and energy storage among all green alternative energy sources introduced. Hydrogen storage and delivery is expensive because of the lower energy density per unit volume as compared with conventional fossil fuels. Hence, hydrogen is usually stored in a gaseous state and delivered via tube trailers or pipelines. In this study, a transient structural analysis of a skid structure mounted on a hydrogen tube trailer was performed under shock load induced by road irregularities. The dynamics of the driving trailer according to the unevenness of the road surface were obtained through multibody dynamic simulations considering the full car model equipped with 64 hydrogen tubes. The transient structural analysis of the tube skid was performed by considering the resulting acceleration values as constraints. Through the sequential simulations, we evaluated the structural safety of the designed tube skid mounted on a trailer during hydrogen transport.
Highlights
Hydrogen energy has a higher energy density than photovoltaic/solar heat, wind power, hydraulic power, geothermal power, and tidal power which are alternative energy sources to solve global warming
We evaluated the structural safety of the designed tube skid mounted on a trailer during hydrogen transport
Structure Analysis Results Using Three-Axis Acceleration Values In this study, a driving simulation was performed to evaluate the safety of a trailer skid structure loaded with a hydrogen tube against shock and vibration loads during driving according to road conditions
Summary
Hydrogen energy has a higher energy density than photovoltaic/solar heat, wind power, hydraulic power, geothermal power, and tidal power which are alternative energy sources to solve global warming. Since hydrogen pressure vessels are transported by tube trailers, there are several studies in the literature on structural safety and failure analysis under various load conditions. This study conducted a transient structural analysis of a skid structure mounted on a hydrogen tube trailer under shock load induced by road irregularities. A simulation was performed to evaluate the safety of a skid structure loaded with hydrogen tubes, when driving a truck trailer. The acceleration value according to the road surface condition was calculated when driving at a speed of 80 km/h using a multibody dynamics software MSC Adams/Car Truck [21]. Using the results of the three-axis acceleration according to time, the transient structural analysis software ANSYS Mechanical (ANSYS Inc., Canonsburg, PA, USA) was used to calculate the deformation and the von Mises stress of the skid [22]
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