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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 20 of 280 for “"slender"”.
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Strength of slender reinforced concrete walls
… is concerned with the behaviour of single span slender reinforced concrete members with depth/span ratios equal to and larger than 1. A series-of deep panels with depth/span ratios between I and 4 was studied experimentally. These elements were tested under third point loads at the top level. …
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Nonlinear vibrations of long slender beams
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1983.
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Separated Flows Over Non-slender Delta Wings
… the flow separation over low-sweep angle or 'non-slender' delta wings, specifically focusing on the coherent vortices characteristic of such geometries. First, stereo particle image velocimetry and surface pressure are used to reconstruct the flow the over a delta wing at steady-state. Vortex …
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Thermal convection in slender laterally-heated cavities
Two-dimensional convective flows in shallow and tall cavities with adiabatic or conducting horizontal boundaries and driven by differential heating of the two vertical end walls, are studied numerically over a range of Rayleigh numbers and Prandtl numbers. As the Rayleigh number increases, …
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Vibration Serviceability of Long Span Slender Floors
The modern trend towards long slender floors has led to major vibration serviceability issues in building floors under rhythmic loading. This happens as a result of reduced natural frequencies and damping ratios due to reduced structural rigidity (Devin et al, 2015). Even though these vibrations do …
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Slender FRP Elements as Discrete Reinforcement for Concrete
… presents a study that led to the development of slender elements that look like fibers used for reinforcing concrete but with a very different reinforcing mechanism. These elements, referred to as “Needles” are very rigid and strong; when intersected by growing cracks in concrete under heavy and …
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Slender elastic swimmers : kinematics, dynamics, and robotic applications
Fish present a natural source of inspiration for the design of high-performance under-water robots. Conventionally, fish-like robotic systems consist of a chain of rigid links connected by a series of rigid actuators. Devices of this nature have demonstrated impressive speeds and maneuverability, …
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Bending, Creasing, and Snapping of Soft, Slender Structures
Crosslinked polymers or elastomers are examples of soft, synthetic material that can bend, crease, snap, wrinkle in response to external stimulus like pH, humidity, electric field or swelling. If a droplet of favorable solvent is placed on top of a thin, elastomer beam, it bends drastically to …
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Improving the Structural Dynamics of Slender Beam-like Structures
… a novel technique for the vibration control of slender beam-like flexible structures. For this purpose, a new method is developed based on minor structural modifications. Three applications are chosen to demonstrate the new method. The first is the sensing wire oscillations of a hot-wire probe. …
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On the Effective Stiffness of Slender Concrete Masonry Walls
The slender masonry wall design procedure in the Canadian Standard for Design of Masonry Structures, CSA S304-14, (2014) has been found to be overly conservative. The calculated effective stiffness term, EIeff, which is used to determine the secondary moment due to wall deflection, was noted as a …
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Hypersonic Rarefield Gas Flow Past Two-Dimensional Slender Bodies
Made available in DSpace on 2014-12-09T17:13:47Z (GMT). No. of bitstreams: 1 6915297.pdf: 2251166 bytes, checksum: cb1c094fc7f069b4dd37223edbc9bb2a (MD5) Previous issue date: 1969
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The development of turbulent slender open-core annular jets
… jet which issues at a constant velocity from a slender annular slot, circumnavigating an open core, into an otherwise quiescent and unbounded environment of the same density, is presented. The geometry of this source is defined by three diameters: the outer diameter of the slot $D_o$; the inner …
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Vortex-induced vibration of slender structures in unsteady flow
… the offshore industry has begun to employ curved slender structures such as steel catenary risers in deep-water offshore oil systems. The top-end vessel motion causes the slender riser to oscillate, creating an unsteady and nonuniform flow profile along the riser. The purpose of this research is …
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Aerodynamics of maneuvering slender wings with leading-edge separation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Terminal control of a variable-stability slender reentry vehicle
… control schemes are applied to a proposed slender reentry vehicle, controlled by two separately-articulating flaps. The flap deflections are summarized as symmetric and asymmetric flap deflections; the former manipulates the drag, lift-curve slope, and static margin; the latter controls the …
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Wave radiation and diffraction by a floating slender body.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Ocean Engineering.
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Optimization of slender space trusses utilizing a continuum model
… concept is demonstrated by the optimization of slender, multi-bay, beam-like trusses with large numbers of members. An algorithm for the continuum model optimization of the truss is developed and tested against a traditional algorithm that might be used to solve the problem. Data are presented …
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Turbulent wake behind slender bodies, including self-propelled configurations
… establish a rigid reference for the wakes behind slender, self-propelled configurations. The downstream rate of decay of |(U<sub>E</sub>-U<sub>c</sub>)<sub>max</sub> U<sub>E</sub>| is essentially the same for the drag and propeller-driven bodies, whereas the decay for the jet-propelled body is …
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