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RISControl Variate Multifidelity Estimators for the Variance and Sensitivity Analysis of Mesostructure–Structure Systems
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Variance and sensitivity analysis are challenging tasks when the evaluation of system performances incurs a high-computational cost. To resolve this issue, this paper investigates several multifidelity statistical estimators ...
Unsteady Analysis on the Effects of Tip Clearance Height on Hot Streak Migration Across Rotor Blade Tip Clearance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an investigation on the hot streak migration across rotor blade tip clearance in a high pressure gas turbine with different tip clearance heights. The blade geometry is taken from the first stage of ...
Numerical Evaluation of Novel Shaped Holes for Enhancing Film Cooling Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The overall film cooling performance of three novel film cooling holes has been numerically investigated in this paper, including adiabatic film cooling effectiveness, heat transfer coefficients as well as discharge ...
Elastic-to-Plastic Strut-and-Tie Model for Deep Beams
Publisher: American Society of Civil Engineers
Abstract: The strut-and-tie model (STM) has been adopted as a preferred methodology for the design of disturbed regions of structural concrete; however, the service behavior of structural concrete, especially with regard to cracking, ...
Development and Performance Evaluation of New Asphalt Material for the Anti-Cracking Layer
Publisher: American Society of Civil Engineers
Abstract: Given the characteristics of anti-cracking layer asphalt material and the shortage of existing research on the subject, thermoplastic styrene-butadiene rubber (SBS), crumb rubber modifier (CRM), and plasticizer (DBP) were ...
Reasonable Reinforcement Ratio of CRC+AC Composite Asphalt Pavements
Publisher: American Society of Civil Engineers
Abstract: The longitudinal reinforcement design was analyzed under current specifications of cement concrete pavement design for highway, considering the structural characteristics and limitations of existing studies on continuously ...
Endwall Film Cooling Performance for a First-Stage Guide Vane With Upstream Combustor Walls and Inlet Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of an upstream combustor wall on turbine nozzle endwall film cooling performance are numerically examined in a linear cascade in this paper. Film cooling is by two rows of cooling holes at 20% of the axial chord ...
Research and Application Review on CFRP Cables for Cable-stayed Bridges
Publisher: American Society of Civil Engineers
Abstract: For its excellent characteristics, such as light weight, high strength, good corrosion resistance and outstanding fatigue resistance, the CFRP cables will find wide application for future cable-stayed bridges. The state ...
A Vine Copula-Based Hierarchical Framework for Multiscale Uncertainty Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Uncertainty analysis is an effective methodology to acquire the variability of composite material properties. However, it is hard to apply hierarchical multiscale uncertainty analysis to the complex composite materials due ...
Sequential Sampling Framework for Metamodeling Uncertainty Reduction in Multilevel Optimization of Hierarchical Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Metamodels instead of computer simulations are often adopted to reduce the computational cost in the uncertainty-based multilevel optimization. However, metamodel techniques may bring prediction discrepancy, which is defined ...