Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"outriggers"”.
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Utilização de "OUTRIGGERS" em edifícios altos
This work aims to study the use of outriggers to reduce the sideway top displacement of tall buildings under lateral wind loading. A lateral load with equivalent linear distribution to the actual wind load is adopted and equations for one or several outriggers are developed seeking for optimum …
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Hybrid damping system for high-rise building outriggers
… damping systems. However, current damping for outriggers are limited to passive dampers. Although they can mitigate the fundamental vibration mode effectively, their non-adjustable property limits their efficiency. The objective of this thesis is to examine in-depth damping systems for …
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Localization and Lensing of Fast Radio Bursts using CHIME/FRB and its VLBI Outriggers
… time of detection. This sets the stage for CHIME Outriggers: three dedicated telescopes which will enhance CHIME’s angular resolution to sub-arcsecond scales over CHIME’s entire field of view, pushing FRB science into an era of plentiful and precise localizations. I also develop a new way to use …
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Controlling for the Ionospheric and Baseline-Offset Uncertainties in the CHIME/FRB Outriggers VLBI Network for Milliarcsecond Precision
Fast radio bursts (FRBs) are a novel form of radio transients discovered in 2007. These bright, extragalactic radio signals have an inferred all-sky rate of hundreds of detections per day. The properties of FRBs hold valuable clues about the extreme physical processes driving them while also …
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Optimization of outrigger structures
… of the structure. However the location of the outriggers has an immense influence on the efficiency of the structure. Outrigger optimization is a significant challenge. The objective of this thesis is to give a better understanding of outrigger location optimization and the efficiency of each …
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Design of a tree moving and planting device
… mechanism needs modification. The current outriggers, which are stored inside the frame, sustained maximum loads of 29 lbs for the 170 lbs tree, and 46 lbs for the 370 lbs tree. A sketch model built to simulate the outrigger mechanism suggests that the outriggers should be attached outside …
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Comparison of three widely-used aerodynamic modifications that minimize the impact of wind loads on tall buildings
… the buildings, for example dampers, bracings and outriggers etc. Aerodynamic modification, which is a passive approach, can also be used to reduce the impacts of wind loads. In this thesis, three widely-used aerodynamics modifications are discussed: 1) Shaping the corners of buildings, 2) Addition …
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Lateral systems for tall buildings
… frame, the braced frame, the braced frame with outriggers and finally the tubular structure. The advantages and disadvantages of all schemes were explored from both an architectural and structural efficiency standpoint. Prior to the computer modeling of each lateral system, each scheme was …
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Experimental Evaluation of the Dynamic Performance Benefits of Roll Stability Control Systems on A-train Doubles
… of the trailers during their commercial use. Outriggers and jackknifing arresting mechanisms are used to prevent vehicle damage and ensure safety during the tests. The test vehicle is equipped with multiple sensors and cameras for the necessary measurements and observations. The analog and …
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High-Speed Roll Stability Evaluation of A-Double Tractor-Trailers
… a loaded trailer in various loading conditions, outriggers for preventing trailer rollover, and durability structures for withstanding the torsional and bending moments resulting from the tests. Various sensors, including GPS, LiDAR units, accelerometers, string pots, and pressure transducers, …