A5067932514- Wind and Air Flow Studies
- Structural Health Monitoring Techniques
- Meteorological Phenomena and Simulations
- Fluid Dynamics and Vibration Analysis
- Seismic Performance and Analysis
- Aerodynamics and Fluid Dynamics Research
- Tropical and Extratropical Cyclones Research
- Probabilistic and Robust Engineering Design
- Seismic and Structural Analysis of Tall Buildings
- Structural Engineering and Vibration Analysis
- Vibration Control and Rheological Fluids
- Lightning and Electromagnetic Phenomena
- Infrastructure Maintenance and Monitoring
- Genomics and Phylogenetic Studies
- Genetics, Bioinformatics, and Biomedical Research
- Wind Energy Research and Development
- Hydraulic and Pneumatic Systems
- Energy Efficient Wireless Sensor Networks
- Machine Fault Diagnosis Techniques
- Railway Engineering and Dynamics
- Agricultural Engineering and Mechanization
- Soil, Finite Element Methods
- Advanced Adaptive Filtering Techniques
- Fault Detection and Control Systems
- Mechanical stress and fatigue analysis
University of Notre Dame
2014-2024
Western University
2005-2006
Abstract The Eukaryotic Pathogen, Vector and Host Informatics Resource (VEuPathDB, https://veupathdb.org) represents the 2019 merger of VectorBase with EuPathDB projects. As a Bioinformatics Center funded by National Institutes Health, additional support from Welllcome Trust, VEuPathDB supports >500 organisms comprising invertebrate vectors, eukaryotic pathogens (protists fungi) relevant free-living or non-pathogenic species hosts. Designed to empower researchers access Omics data...
Abstract The Eukaryotic Pathogen, Vector and Host Informatics Resource (VEuPathDB, https://veupathdb.org) is a Bioinformatics Center funded by the National Institutes of Health with additional funding from Wellcome Trust. VEuPathDB supports >600 organisms that comprise invertebrate vectors, eukaryotic pathogens (protists fungi) relevant free-living or non-pathogenic species hosts. Since 2004, has analyzed omics data public domain using contemporary bioinformatic workflows, including...
The estimation of the extreme non-Gaussian load effects for design applications has often been treated tacitly by invoking a conventional peak factor on basis Gaussian processes. This assumption breaks down when loading process exhibits non-Gaussianity, in which yields relatively nonconservative estimates because failure to include long tail regions inherent To realistically capture salient characteristics and incorporate these their extremes, this study examines processes, can be used...
In comparison with atmospheric boundary-layer winds, which are generally regarded as stationary, windstorms such hurricanes and thunderstorms/downbursts have strong nonstationary features characterized by rapid changes in wind speed direction. The averaging interval associated turbulent characteristics winds is typically varied between 10 min 1 h. A fixed (FAI), uses a constant mean to isolate the fluctuating component, has been effective characterizing winds; however, question remains...
Tall buildings are one of the few constructed facilities whose design relies solely upon analytical and scaled models, which, though based fundamental mechanics years research experience, has yet to be systematically validated in full scale. In response this need, through combined efforts members academe, a firm commercial wind tunnel testing laboratory, program was initiated monitor full-scale representative tall compare predicted from tunnels finite-element models used commonly design. As...
In comparison with atmospheric boundary layer winds, which are customarily treated as stationary, winds associated gust fronts originating from a thunderstorm/downburst exhibit rapid changes during short time period, may be accompanied by in direction. This introduces nonstationarity both the mean and standard deviation of wind fluctuations. order to realistically capture characteristics gust-front their attendant load effects, new analysis framework is presented, named here factor approach....
This study introduces a unique prototype system for structural health monitoring (SHM), SmartSync, which uses the building's existing Internet backbone as of virtual instrumentation cables to permit modular and largely plug-and-play deployments. Within this framework, data streams from distributed heterogeneous sensors are pushed through network interfaces in real time seamlessly synchronized aggregated by centralized server, performs basic acquisition, event triggering, database management...
This paper introduces a framework for the performance-based design (PBD) of high-rise buildings with respect to occupant comfort performance objective. The is expressed in terms probability—conditional on wind event intensity—that fraction building occupants one floor that perceive motion greater than chosen threshold value. fully probabilistic, and numerous uncertainties affecting both structural response human perception are considered assessment exceedance probability. In addition, new...
This study proposes a generalized wind loading chain to describe complete relationship among wind, force, and response induced by nonstationary events such as tropical storms or downbursts complement the Davenport chain. In proposed chain, winds are represented model in terms of time-varying mean fluctuating components similar stationary involving Davenport's Specifically, five gustiness aerodynamic transfer/admittance, structural statistics recast time-dependent counterparts time-frequency...
The NatHaz Aerodynamic Loads Database (NALD) (http://aerodata.ce.nd.edu) introduced in 2000 has served an important first step establishing on-line experimental archive of high-frequency base balance (HFBB) data for use the preliminary design high-rise buildings subjected to wind loads. As a result, NALD was recently Commentary ASCE 7-05 (C6.5.8) as alternative means assessing dynamic load effects on buildings. This paper presents version 2.0 (v. 2.0), integrating latest advances management...
In wind tunnel experiments, the blockage effect is a very important factor which affects test results significantly. A number of investigations into this problem, especially on correction drag coefficient, have been carried out in past. However, only limited works reported wind-induced vibration although it considered to be fairly important. This paper discusses aerodynamic characteristics square model and with corner cut based series tests various ratios angles attack. From results,...
This study proposes a near-real-time hybrid framework for system identification (SI) of structures using data from structural health monitoring systems. To account both stationary/weakly nonstationary response under normal conditions (e.g., extratropical winds and/or ambient excitations) and transient/highly transient events earthquakes, windstorms, or time-varying traffic loadings), is introduced by integrating new SI scheme based on wavelets in tandem with transformed singular value...
Pinnacles on top of tall buildings are vulnerable to vortex-induced vibrations (VIVs). These structures may undergo large-amplitude that can lead fatigue damage accumulation. To assess the performance and its appendages, numerous structural health monitoring (SHM) programs have been installed buildings. This continuous generates more than 1 trillion data points per year building. Also, many occasions, generated by SHM contain missing observations. The evaluation life using conventional...
Abstract This paper proposes a frequency domain framework for concurrently estimating the modal structural parameters and loads from measured output response. A mathematical load model is theoretically developed compared to determined by force identification. Unlike conventional identification schemes, proposed approach can effectively accommodate spectral shape of external in domain, enabling determination without explicit white noise assumption. The verified applying it...
A peak gust–based wind map was first introduced in ASCE 7-95 to replace the fastest mile speed used earlier versions of 7 standard based on records using National Weather Service (NWS) F420C cup anemometer/chart recording system. The gust considered be 2–3 s duration and referred as a 3-s standard. This may imply that an instantaneous is recorded during referenced time period, thus it not equivalent commonly moving average time. formulation gust-effect factor has implicitly utilized...
Abstract The mode shape is one of the important modal parameters that enables to visualize intrinsic behavior a structure as well quantity interest by extracting or separating response from measurements. In this study, new output‐only framework proposed extract modes using modal‐based Kalman filter defined in space and identify manipulating correlation between separated measured responses. It also shown can be extended estimate shapes non‐classically damped state when variable constructed...
Summary This study presents an advanced experimental system, hardware‐in‐the‐loop (HIL), recently referred to as hybrid testing, validate the effectiveness of a double‐decker tuned sloshing damper (TSD) system with screens applied constructed tall building. The HIL simulation facilitates performance analysis combined structure‐damper in which nonlinear behavior liquid motion TSD is physically modeled, whereas building under wind loads that behaves linearly embedded virtually utilizing...
Despite many advances in the area of wind effects on structures recent decades, research has been traditionally conducted within limited resources scattered geographically. With trend toward increasingly complex designs civil infrastructure combined with escalating potential for losses by extreme events, a new culture needs to be established based innovative and collaborative solutions better management impact events. To address this change, paper presents paradigm multi-scale cyber...
In comparison with atmospheric boundary layer winds, which are customarily treated as stationary, winds associated gust fronts originating from a thunderstorm/downburst exhibit rapid changes during short time period, may be accompanied by in direction. This introduces nonstationarity both the mean and standard deviation of wind fluctuations. order to realistically capture characteristics gust-front their attendant load effects, new analysis framework is presented, named here factor approach....