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 6 of 6 for “"passive vibration isolation"”.
-
Element and system design for active and passive vibration isolation
This thesis focusses on broadband vibration isolation, with an emphasis on control of absolute payload motion for ultra-precision instruments such as the MIT/Caltech Laser-Interferometric Gravitational Wave Observatory (LIGO), which is designed to measure spatial strains on the order of 10-²¹. We …
-
A Single-Stage Passive Vibration Isolation System for Scanning Tunneling Microscopy
… surface, the device is prone to noises due to vibrations from the surroundings. To minimize the random noises and floor vibrations, passive vibration isolation is a commonly used technique due to its low cost and simpler design compared to active vibration isolation, especially when the entire …
-
Analysis of Buckled and Pre-bent Columns Used as Vibration Isolators
Vibrations resulting from earthquakes, machinery, or unanticipated shocks may be very damaging and costly to structures. To avoid such damage, designers need a structural system that can dissipate the energy caused by these vibrations. Using elastically buckled struts may be a viable means to …
-
Optimal mode localization in disordered, periodic structures
… localization, offers an excellent option for passive vibration isolation. In the first part of the thesis, we provide analytical prediction of modes exhibiting moderate localization using a newly developed Jordan Block Perturbation Method. We estimate and compare convergence zones of our newly …
-
Development of Precision, Field-Deployable, Opto-Mechanical Instrumentation: Accessibility as a Functional Requirement
… It is a tabletop, ultra-high vacuum compatible passive vibration isolation platform with active damping control. Its innovative architecture is demonstrated to meet the stringent requirements of gravitational-wave interferometers, advancing the field’s suspension technology to be simpler yet …
-
Two Dimensional Analysis of Vibration Isolation of Rigid Bar Supported by Buckled or Pre-bent Struts
… of this research is to study a new type of vibration isolator, utilizing the post-buckled stiffness of elastic struts (or columns). The advantage of the post-buckled state is that ideally it can support more static load with a relatively small static deflection than traditional vibration …