Browsing Engineering (Faculty of) by Supervisor "Narasimhan, Sriram"
Now showing items 1-15 of 15
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Acoustic Monitoring for Leaks in Water Distribution Networks
(University of Waterloo, 2020-04-21)Water distribution networks (WDNs) are complex systems that are subjected to stresses due to a number of hydraulic and environmental loads. Small leaks can run continuously for extended periods, sometimes indefinitely, ... -
Active Acoustics for Monitoring Unreported Leaks in Water Distribution Networks
(University of Waterloo, 2021-09-08)Water distribution networks (WDNs) are critical infrastructure elements conveying water through thousands of kilometers of pipes. Pipes - one of the most critical elements in such systems - are subjected to various structural ... -
A Deep Learning Approach for Automating Concrete Bridge Defect Assessment Using Computer Vision
(University of Waterloo, 2020-08-21)Current bridge inspection practices are outdated compared to the advanced technologies available today, and there is significant room for improvement. For example, spalls are inspected by visual assessment and delaminations ... -
Deployable Vibration Control Systems for Lightweight Structures
(University of Waterloo, 2019-03-27)The recent push towards lightweight, efficient, and innovative structural designs has brought forth a range of vibration control issues related to implementation, effectiveness, and control system design that are not fully ... -
Design and Implementation of Google Cloud Framework for Monitoring Water Distribution Networks
(University of Waterloo, 2019-12-06)With urbanization and growing human population, water demand is constantly on the rise. Due to limited water resources, providing access to fresh potable water to the rising needs is challenging. Water distribution systems ... -
Enabling Human-Machine Collaborative Inspections through Smart Infrastructure Metaverse
(University of Waterloo, 2024-02-08)Over the last ten years, novel Artificial Intelligence (AI) based structure assessment methods and tools have been proposed to identify and quantify structural damage indicators (e.g., cracking, spalling, corrosion, etc.) ... -
Evaluation and Calibration of Pedestrian Bridge Standards for Vibration Serviceability
(University of Waterloo, 2017-08-14)An increase in the use of lightweight materials and emphasis on architecturally appealing designs has resulted in lively pedestrian bridges. A prominent example for this is the serviceability failure of the London Millenium ... -
Large Scale Testing and Modelling of Reinforced Concrete Flat Plate Systems in Seismic Areas
(University of Waterloo, 2015-11-12)The focus of this research is on developing new punching shear retrofit techniques for slab-column connections to improve the seismic response of flat-plate systems. Previous tests have shown the effectiveness of using ... -
Mechanistic Framework for Risk Assessment of Cast Iron Water Main Fractures due to Moisture-Induced Soil Expansion
(University of Waterloo, 2021-07-09)North American water distribution networks are at significant risk of failure due to aging cast iron pipes. For instance, of the 650,000 kilometers of cast-iron pipes in active service in the United States and Canada, ... -
Online Monitoring Framework for Pressure Transient Detection in Water Distribution Networks
(University of Waterloo, 2019-04-23)Access to potable drinking water is a necessity and basic human right. Most North Americans obtain treated water through water distribution networks, an essential part of municipal infrastructure that is subject to decay ... -
A probabilistic approach to vibration-based modal identification using mobile sensors
(University of Waterloo, 2019-10-08)Vibration-based modal identification is the process of analyzing vibration measurements in order to identify the modal properties of the structure, namely the modal frequencies, damping ratios, and mode shapes. The quality ... -
A Stochastic Approach to Measurement-Driven Damage Detection And Prognosis in Structural Health Monitoring
(University of Waterloo, 2017-12-08)Damage detection and prognosis are integral to asset management of critical mechanical and civil engineering infrastructure. In practice, these two aspects are often decoupled, where the former is carried out independently ... -
Three Dimensional Digital Image Correlation for Dynamic Measurements
(University of Waterloo, 2019-01-25)Structural inspections have traditionally been completed by inspectors using simple tools to determine the health of a structure. The limitations using these techniques led to the development of quantitative sensors such ... -
Unsupervised Methods for Condition-Based Maintenance in Non-Stationary Operating Conditions
(University of Waterloo, 2022-04-28)Maintenance and operation of modern dynamic engineering systems requires the use of robust maintenance strategies that are reliable under uncertainty. One such strategy is condition-based maintenance (CBM), in which ... -
Visual-lidar Map Alignment for Change Detection in Infrastructure Applications
(University of Waterloo, 2023-11-22)Current human-based infrastructure inspections face several problems. Firstly, human inspectors face safety risks working in hazardous environments and reaching challenging areas in order to inspect an infrastructure asset ...