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RISOptimization of Energy Saving and Fuel-Cell Durability for Range-Extended Electric Vehicle
Publisher: American Society of Civil Engineers
Abstract: For a fuel cell range-extended electric vehicle (FC-REEV), the fuel cell system can work at a fixed output power point, and it has high durability. However, the differences in output power and start–stop threshold can lead ...
Optimizing a Polycarboxylate Superplasticizer Molecular Structure to Reduce Apparent Viscosity of Cement Paste at Higher Environmental Temperatures
Publisher: American Society of Civil Engineers
Abstract: A high environmental temperature can increase the apparent viscosity of high-performance concrete mixtures, causing difficulties in mixing, transporting, pumping, and molding the mixtures. Although polycarboxylate ether–based ...
Framework for Mitigating Human Bias in Selection of Explanatory Variables for Bridge Deterioration Modeling
Publisher: American Society of Civil Engineers
Predicting Utah Ground Snow Loads with PRISM
Publisher: American Society of Civil Engineers
Abstract: Despite their importance in building design, ground snow load requirements remain largely undefined for the western United States. This paper proposes an adaptation of the Parameter-Elevation Relationships on Independent ...
Stochastic Modeling of Bridge Deterioration Using Classification Tree and Logistic Regression
Publisher: American Society of Civil Engineers
Abstract: This paper presents a new method to develop stochastic deterioration models using a combination of methods including Markov chains, logistic regression, and classification trees. It is computationally more efficient to use ...
Comparing Design Ground Snow Load Prediction in Utah and Idaho
Publisher: American Society of Civil Engineers
Abstract: Snow loads in the western United States are largely undefined due to complex geography and climates, leaving the individual states to publish detailed studies for their region, usually through the local Structural Engineers ...
Energy Management Strategy Considering Fuel Economy and Life of Fuel Cell for Fuel Cell Electric Vehicles
Publisher: American Society of Civil Engineers
Abstract: The optimization of energy management strategy (EMS) for fuel cell electric vehicles (FCEV) is mainly applied to reduce fuel consumption. However, serious power fluctuations affect the durability of the fuel cell, which ...
Research on Energy Management of Fuel-Cell Electric Tractor Based on Quadratic Utility Function
Publisher: ASCE
Abstract: To solve the problems of high pollutant emission of traditional diesel tractors and short continuous operation time of pure electric tractors, a new tractor powertrain system model with a fuel cell as the primary energy ...
Stress Increase of Unbonded Tendons in Continuous Posttensioned Members
Publisher: American Society of Civil Engineers
Abstract: A database of 253 unbonded tendon-reinforced members was assembled and analyzed with a focus on Δfps. Large scatter was observed and gaps were identified in previous databases due to possibly unsuitable inclusion of certain ...
Parametric Effect of Blade Surface Blowing on the Reduction of Rotor Blade–Vortex Interaction Noise
Publisher: ASCE
Abstract: Reducing rotor blade–vortex interaction (BVI) noise is a major challenge in rotorcraft research. This paper presents a high-resolution numerical study of the effects of blade surface blowing on BVI noise reduction. Using ...