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 78 for “"Electromechanical systems"”.
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Sensing for Electromechanical Systems
Electromechanical devices and systems, for example, pumps, compressors, and electric machines, are the foundation of modern society. Condition monitoring of these systems is crucial for efficient operation and operator safety. Modern electronics enable new developments in electromechanical system …
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Electrical Monitoring of Electromechanical Systems
Electromechanical systems provide the world’s backbone for generating and using energy. Electromechanical systems can also experience an innumerable set of failures, causing induced wear and wasted energy, or eventually a complete failure of a critical piece of equipment or system. Degradation or …
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Nanoscale membranes for electromechanical systems
Micro- and nano-electromechanical systems (MEMS/NEMS) are a technology field that branched out of semiconductor integrated circuit (IC) manufacturing about four decades ago, and one that forms the backbone of the Internet of Things era. However, as MEMS devices are becoming ubiquitous, they are …
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Printed electronics and micro-electromechanical systems
Current electronics and micro-electromechanical systems (MEMS) manufacture is optimized for the production of very high-volume parts on a limited range of substrates. These processes are long, consume large amounts of resources, and require expensive machines and facilities, but yield excellent …
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Stochastic Modeling of Micro-Electromechanical Systems (Mems)
In the final part, a data-driven stochastic collocation approach is presented, which seeks to characterize uncertain input parameters based on available experimental information. This approach models the uncertain parameters as independent random variables, for which the distributions are estimated …
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Inductively-coupled power transfer for electromechanical systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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Strategic outsourcing of micro-electromechanical systems (MEMS)
… to experiment with Micro-electrical Mechanical Systems (MEMS) as an enabling technology for their products. If ABB's implementation of MEMS is found successful, it will be able to create breakthrough products and services that will revolutionize the market in ABB's industrial sensors, …
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Integrated optical switching using titanium nitride micro electromechanical systems
… integrated circuits (OICs) based on micro electromechanical systems (MEMS). The device consists of a ring resonator add-drop filter and a conductive MEMS bridge which is actuated by electrostatic force. Introducing conductive material into the electromagnetic evanescent field of the ring …
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A remotely automated microscope for characterizing micro electromechanical systems (MEMS)
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Reduction of model dimension in nonlinear finite element approximations of electromechanical systems
… the order of finite element based models of electromechanical components is presented. The development begins by expressing Maxwell's equations in differential form to establish a wave equation for an electromechanical device. A finite-element method is used to express the solution of the …
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A Variational Formulation Describing the Attractors of Some Open, Dissipative, Electromechanical Systems
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-13T18:32:34Z No. of bitstreams: 1 1997_dueweke.pdf: 2541154 bytes, checksum: c57cedd3fd08e4e236d205f829780758 (MD5)
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Electromechanical systems to enhance the usability and diagnostic capabilities of ultrasound imaging
… evaluation of three novel electro-mechanical systems that could be used to enhance the usability and diagnostic capabilities of ultrasound by measuring and/or controlling probe acquisition state (i.e., contact forces, torques, and angles of orientation). The first system, a hand-held …
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A rapid recursive experimental approach to integrated structure/control redesign of electromechanical systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Instabilities in Multiphysics Problems: Micro- and Nano-electromechanical Systems, and Heat-Conducting Thermoelastoviscoplastic Solids
… investigate (i) pull-in instabilities in a microelectromechanical (MEM) beam due to the Coulomb force and in MEM membranes due to the Coulomb and the Casimir forces, and (ii) thermomechanical instability in a heat-conducting thermoelastoviscoplastic solid due to thermal softening overcoming …
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Current based condition monitoring of electromechanical systems. Model-free drive system current monitoring: faults detection and diagnosis through statistical features extraction and support vector machines classification.
… in the field of condition monitoring of electromechanical systems. Induction motors are chosen as an example for such application. Electrical motors play a vital role in our everyday life. Induction motors are kept in operation through monitoring its condition in a continuous manner in …
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Computational electromagnetics for microstrip and MEMS structures
… a micron. It is important in the design of micro-electromechanical systems (MEMS) and nano-electromechanical systems (NEMS). Our method casts the evaluation of the force as a series of traditional 2D or 3D electromagnetic scattering problems, which are formulated with integral equations and then …
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A configurable 3-phase machine for laboratory instruction
In order to learn about and work effectively with electromechanical systems, many students need exposure to these systems before completing their education. This thesis work introduces two novel teaching aids for laboratory classes. The first is a 3-phase axial-flux machine which can be configured …
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RattleSnake : stochastic folding for chain programmable matter
… threedimensional shapes. Previous active electromechanical systems have demonstrated this concept but are currently costly, complex, and not robust enough to scale to smaller sizes or larger numbers of nodes. The goal of this thesis is to explore methods of simplifying chain programmable …
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Performance measurements of MEMS analysis system
Designers and manufacturers of Micro Electromechanical Systems need accurate instruments to examine the mechanical properties of the devices they fabricate. The research presented in this thesis evaluate's the motion detection capabilities of a MEMS Analysis System. The thesis describes two motion …
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