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 20 of 51 for “"Frame Structure"”.
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Dynamic Interactions Between Multidimensional Viscoelastic Joints and an Elastic Frame Structure
… joints at the interfaces between elastic structures that balance the competing needs of ride and handling, durability, and vibration isolation for the next generation fuel efficient vehicles. A typical elastomeric joint is geometrically shaped to provide favorable properties in certain …
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Application of Load Updating to a Complex Three Dimensional Frame Structure
… method is applied to the analysis of a complex frame structure whose validation is challenging due to the complex nature of its structural behavior, load distributions, and error derived from residual strains. A FEM created for this structure is used to generate strain data for thirty-two …
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A Method for A Forced Vibration Analysis of A Flat Skin-Stringer-Frame Structure
Made available in DSpace on 2014-12-09T18:12:22Z (GMT). No. of bitstreams: 1 6812107.pdf: 3374060 bytes, checksum: 7758862d70f85ae97c82b11337411c25 (MD5) Previous issue date: 1968
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Manufacturing improvement and thermal property characterization of the frame structure of an Ultra-high Throughput Mutational Spectrometer
… a 100 by 100 capillary array. A modular aluminum structure was designed for the instrument to provide a chamber to house the array and modulate the flow of coolant, providing temperature control. The first iteration of the structure experienced leakage problems, which this project rectified. The …
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Algorithms for Efficient Utilization of Wireless Bandwidth and to Provide Quality-of-Service in Wireless Networks
… the proposed algorithms we present an adaptive frame structure based upon the airlink frame loss probability and control the admission of call requests into the system based upon the load on the system and the QoS requirements of the incoming call requests. The performance of the proposed …
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Automated CAD Model Generation for Structural Optimisation
… is to first convert the topology-optimised structure into a spatial frame structure and then to regenerate it in a CAD system using standard constructive solid geometry (CSG) operations. The obtained parametric CAD models are compact, that is, have as few as possible geometric parameters, …
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Semi-active control of elastic and inelastic building structures with piezoelectric friction dampers
… to mitigate the seismic responses of building structures with semi-active devices.</p> <p>In this study, a piezoelectric friction damper (PFD) was first introduced with its clamping force regulated by piezoelectric stack actuators. A new semi-active control algorithm, which consists of Coulomb …
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Seismic performance, design and placement of multiple tuned mass dampers in building applications
… roles in the seismic responses of building structures while the conventional single TMD tuned to the fundamental mode has little effect on the responses of higher modes.</p> <p>In this study, a multiple tuned mass damper (MTMD) scheme that can control the responses of multiple modes …
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Computed Nonlinear Seismic Response of Reinforced-Concrete Wall-Frame Structures (Dynamic, Analysis)
… coupled shear wall and/or wall-frame structure subjected to strong earthquate motion without complication in the method itself, yet with reasonable reliability in the computed results. The computed responses of one cantilever column member, two coupled shear wall structures, and …
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Material impacts on operational energy usage
… climate change. This thesis focuses on concrete structures and how the thermal mass and the thermal resistivity influence energy usage. The investigation was done looking at large commercial office buildings in the climates of Phoenix and Chicago. A comparison was conducted between a steel frame …
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Fite Fuaite
… while allowing the character of the existing structure to be minimally impacted. The intervention in the historic building fabric demonstrates how new materials and construction techniques allow for a distinct contrast between old and new, and how the two can work harmoniously together. …
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THE EFFECTIVENESS OF WIDE COLUMN LUMPING METHOD FOR PRELIMINARY DESIGN OF HIGH-RISE BUILDING
… simplified assumptions to derive an equivalent structure which represent the essential behaviour of actual buildings. A careful analytical consideration should be taken from the initial design process. At present, lumping technique has been used to simplify a frame structural model by lumping a …
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Statistical system identification of structures with flexible joints
… model parameters from the static response of the structure. The method is demonstrated by applying it to a simple cube frame structure and a car body. Finally, the two models are compared in terms of their ability to predict static response.
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Optimally stiffened thin shell structures in 3D printing.
Thin shell structures have been widely applied in crafts, art, industry, architecture, aerospace, etc. The dilemma in printing thin shell structures is the balance between material efficiency and structural soundness. The use of more material will produce a more solid and sound structure but it …
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Study of base isolation systems
… the conceptual design of base isolated structures. A 90 feet high, 6 stories tall, moment steel frame structure with tension cross bracing is used to compare the response of both fixed base and base isolated schemes to severe earthquake excitations. Techniques for modeling the …
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Bamboo Housing: Building with Composites for Dignity and Longevity
… cross-laminated floor panels installed into culm-frame structure, adequate floor system bending data for design incorporation, and a cost-effective design proposal compared to bamboo disaster-relief precedence. This thesis has the potential to be built upon to the result of real-world …
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Improving an IBM type 650 digital computer operation by programming the inverse of a partitioned matrix as used in the analysis of rectangular rigid frames
In order to solve a highly indeterminate rigid frame structure by the method of slope deflection a high order stiffness matrix needs to be inverted. Existing computer programs for the IBM Type 650 Computer are entirely too time consuming when the matrix coefficients and program instructions exceed …
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Multiservice Ethernet Digital Distributed Antenna Systems
… wireless system with existing Ethernet infrastructures. The Cloud Radio Access Networks (C-RAN) has been suggested by major telecom vendors as the main architecture for last-mile coverage in 5G. However, the digital fronthaul interface defined in common public radio interface (CPRI), which is …
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Seismic experimental analyses and surrogate models of multi-component systems in special-risk industrial facilities
… been devoted to setting computational fragility frameworks for special-risk industrial components and structures. However, within a PBEE perspective, studies have clearly remarked: i) a lack of definition of performance objectives for NSCs; ii) the need for fully comprehensive testing campaigns …
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Experimental and analytical study of variable fluid damper and stiffness device
… of incorporation of such a device into a framed structure. The damper properties are determined under cyclic and ramp loadings, and the results are presented. Further experimental research is performed to evaluate the effectiveness of the afore mentioned device in a proposed Scissor-Jack …
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