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.
Results
Showing 1 to 9 of 9 for “"Random Loading"”.
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Monte Carlo study of fatigue crack growth under random loading
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1975
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Snap-through of a shallow arch subjected to random excitation
The motion of a shallow arch subjected to random loading is investigated. It is expected that the arch will vibrate about its initial stable configuration under low intensity loading, but will snap back and forth about its horizontal axis under high intensity loading. The parameter of interest is …
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Determinação da fadiga em estruturas metálicas soldadas submetidas a solicitações dinâmicas
… steel structures submited to deterministic and random loading, by the Finite Element Method. The deterministic approach furnishes the steady-state response, in the frequency dornain, by the Modal Superposition Method. For high exciting frequencies the Direct Method in the frequency domain is …
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Stochastic Stability and Nonlinear Control in Mechanical Systems
… gyroscopic problem of a rotating shaft with a random loading demonstrating the conservative nature of mean square stability. In addition to stochastic excitations, many systems also undergo harmonic loading. The almost-sure stability of two degree-of-freedom systems subjected to both random and …
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A simulation study of tooling effects in automated manufacturing.
… identical, nonidentical and hybrid, and two part loading patterns; batch and random loading. In addition, a new tool refilling concept, tool replenishing, is also examined. The replenishing concept consists of two policies; preventive and failure replenishing. The effects of shared and dedicated …
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Modeling the Residual Strength Distribution of Structural GFRP Composite Materials Subjected to Constant and Variable Amplitude Tension-Tension Fatigue Loading
… composites subjected to variable fatigue loading and environmental exposure. The results of this simulation can then be used in LRFD to determine appropriate material factors of safety for engineering design applications. The work so far focuses on modeling the response of the material to …
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Reliability based design methodology incorporating residual strength prediction of structural fiber reinforced polymer composites under stochastic variable amplitude fatigue loading
… a significant proportion of fibers in the loading direction and thus have fiber-direction dominated failure. The four papers presented in this dissertation describe the logical progression used to develop an improved reliability-based methodology for fatigue-critical design. Throughout the …
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Vibro-acoustic dynamics in the presence of uncertainty and nonlinearity
… for an ensemble of nonlinear systems under random loading has therefore been developed to establish a linearised Hybrid FE-SEA method. Although this motivated its development, the linearisation itself is completely general in its derivation. Additionally, this highlighted two further …
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Adaptive Scheduling and Tool Flow Control in Automated Manufacturing Systems
… sub-problems for each scheduling window, handles random disruptions by updating job ready time, completion time, and machine status on a rolling horizon basis, and considers the machine availability explicitly in generating schedules. Two types of manufacturing system models are used in simulation …