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 374 for “"Mechanical Systems"”.
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Modelling mechanical systems
Education should be one of the highest priorities of any country. The ability to pass on knowledge and understanding effectively is a sign of a good educational system. From an engineering perspective, better teaching tools allow for greater understanding by the students making them better …
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Stochastic Averaging for Mechanical Systems
Two mechanical systems are studied in this thesis. One is a model for the motion of water waves and the other is an autoparametric oscillator. These systems are studied when driven by stochastic forcing. The analysis presented is based on the theory of stochastic averaging. This theory provides a …
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Mechanical systems / passive envelopes: integrative architectural approaches?
… architecture and energy. On the one hand mechanical, energy intensive approach based on building services: complex networks of heating, ventilation and air conditioning that supply comfort conditions despite variable weather conditions. These are internal ducting and piping, seldom …
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Markov Chains Derived From Lagrangian Mechanical Systems
… spaces. One needs good and well motivated model systems in this effort. In this thesis, we propose to produce such systems by introducing randomness into familiar deterministic systems so that we can draw upon the existing: deterministic) results to aid the analysis of our Markov chains. We will …
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Adaptive Geometric Numerical Integration of Mechanical Systems
This thesis is about structure preserving numerical integration of initial value problems, i.e., so called geometric numerical integrators. In particular, we are interested in how time-step adaptivity can be achieved in conjunction with structure preserving properties without destroying the good …
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Parallel computational methods for constrained mechanical systems
… for parallel computation in the study of mechanical systems with holonomic and nonholonomic constraints are presented: one is an explicit solution based on generalized inverse algebra; the second solves problems of this class through the direct application of Gauss' principle of least …
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Qualitative behavior prediction for simple mechanical systems
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Pan slab construction for integrated mechanical systems.
Massachusetts Institute of Technology. Dept. of Architecture. Thesis. 1966. M.Arch.
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Artificial gauge fields in photonics and mechanical systems
… matter models. However, many of these synthetic systems are characterized by neutral particles that do not couple to real gauge fields. In order to simulate interesting electromagnetic phenomena, such as the topological insulators, or the Landau levels, there is the need for the implementation of …
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MULTI-SCALE DYNAMICS OF MECHANICAL SYSTEMS WITH FRICTION
… rough surfaces occurs in numerous engineering systems and in many instances influences the macro behavior of the system. In many instances, the interaction between rough surfaces, affect the macro behavior of the system. Effective treatment of systems containing rough surface contact requires …
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Stochastic Stability and Nonlinear Control in Mechanical Systems
… 3 and 4 dimensional co-dimension two dynamical systems under small intensity stochastic excitations is investigated. The method of stochastic averaging is used to derive a set of approximate Ito equations which are then examined to obtain the almost-sure stability conditions. The sample …
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Global bifurcations and chaos in nonlinear mechanical systems
… bifurcation behavior of various structural and mechanical systems have been examined in detail. The analysis is divided into three main parts. In the first part, global bifurcation analysis is performed for externally excited nonlinear systems with initial imperfections and a semisimple linear …
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Multivariable isoperformance methodology for precision opto-mechanical systems
Precision opto-mechanical systems, such as space telescopes, combine structures, optics and controls in order to meet stringent pointing and phasing requirements. In this context a novel approach to the design of complex, multi-disciplinary systems is presented in the form of a multivariable …
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Model-following control applications to nonlinear mechanical systems
… lift and side force. The former represents the systems where all of the degrees of freedom can be controlled, and the latter represents the systems where only some of the degrees of freedom can be controlled. The aircraft control problem is analyzed in more detail. The resulting control law does …
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