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 59 for “"linear motion"”.
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Large-Displacement Linear-Motion Compliant Mechanisms
Linear-motion compliant mechanisms have generally been developed for small displacement applications. The objective of the thesis is to provide a basis for improved large-displacement linear-motion compliant mechanisms (LLCMs). One of the challenges in developing large-displacement compliant …
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Metrology techniques for compound rotary-linear motion
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Design and control of high precision linear motion systems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1989.
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The effect of G-seat tactile cueing on linear motion perception
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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Design of a small-scale continuous linear motion pharmaceutical filtration module
A new small-scale continuous linear motion pharmaceutical filtration prototype was designed, fabricated, and tested. The goal of this unit is to filter an Active Pharmaceutical Ingredient (API) from a mixture of API molecules, ethyl acetate, and possible contaminants. This unit is important in the …
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Analysis of linear motion systems for a large scale FDM 3D printer
… made larger but still print quality prints? The linear system of a normal size Reprap MendelMax would have to be replaced to achieve this. Two linear systems that were relatively inexpensive and easy to acquire, the Makerslide and the Open Rail linear systems were good candidates. Calculating and …
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Performance limits of linear variable reluctance motors in controlled linear motion applications
… a target position following the fastest possible motion trajectory while meeting final-position accuracy requirements. The actuator's achievable force that is available for acceleration is the fundamental variable that determines optimal settling time. The actuator technology employed is the …
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Buckling and friction-based linear motion clutch with application to medical devices
Improperly inserted and positioned needles and catheters often require repeated attempts at correct placement causing injury to adjacent structures or infusions into inappropriate spaces. Existing catheter insertion methods do not uniformly provide needle tip location feedback, nor prevent the …
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An easy to manufacture non-contact precision linear motion system and its applications
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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Low-cost, highly-damped, precision linear motion using porous carbon air bearings and epoxy replication
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Design of 3-DOF parallel manipulators for micro-motion applications
This thesis presents two unique micro-motion parallel kinematic manipulators (PKM): a three degrees of freedom (3-DOF) micro-motion manipulator and a 3-DOF micro-motion manipulator with actuation redundancy. The 3-DOF micro-motion manipulator has three linear-motion driving units, and the 3-DOF …
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Design modeling and fabrication of experimental apparatus for compliant mechanism education kit
… for designing flexures. The first flexure is a linear motion flexure, which is a familiar design to practicing precision engineers. The second design is a flexure which moves in a screw motion, which has never been built before. The design of the screw flexure uses the FACT method to combine …
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Material Handling for Continuous Lyophilization Process
… in this paper is the wedge door. Using a linear actuation motion and large sealing surface angle with respect to the horizontal, the wedge door requires less space compared to the previous rotary designs, four-bar linkage and simple pivot doors. The wedge door has a length normalized leak …
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Musical Forces in the Serial Music of Igor Stravinsky
… and gestural voice leading implying the motion of resolution. Inertia’s influence remains essentially the same; linear motion and motivic motion are present in both tonal and atonal music.</p> <p>Analysis of three brief serial Stravinsky compositions shows evidence these forces do exist …
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Instrumentation for multiaxial mechanical testing of inhomogeneous elastic membranes
… The instrument incorporates an arrangement of linear motion stages for applying arbitrary deformation profiles on the material under test, purpose-built two-axis force transducers for high-resolution measurement of applied loads, and a digital imaging system for full-field strain measurement. …
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Critical flow velocity in super fluid 3He-B
… and the dissipation for an object in uniform linear motion through superfluid 3He-B. The latter experiments led to an astonishing discovery of no discontinuity in the dissipation for an object in uniform linear motion at the Landau critical velocity. The experiments were performed in a …
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Intelligent Side Information Generation in Distributed Video Coding
… to generate SI have usually been based on linear motion compensated temporal interpolation (LMCTI), though these do not always produce satisfactory SI quality, especially in sequences exhibiting non-linear motion. This thesis presents an intelligent higher order piecewise trajectory …
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Demagnetisation of solid 3He and supercritical superflow
… superfluid in oscillatory as well as in uniform linear motion. An object moving with high enough velocity that the excitation spectrum becomes gapless can create excitations at no energy cost and initiate the breakdown of the condensate - this limit is the well-known Landau velocity. In …
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On-Chip Actuation of Compliant Bistable Micro-Mechanisms
… rotation, allow them to be switched using linear-motion thermal actuators. The modeling theory and analysis are presented for several design iterations. Each iteration was successfully fabricated and tested using either the MUMPs or SUMMiT surface micromachining technology.
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