| dc.contributor | DE LA LLERA-MARTIN, JUAN CARLOS | |
| dc.contributor | PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE | |
| dc.creator | STERNBERG-CUNCHILLOS, ALAN PHILLIP | |
| dc.date | 2016-08-10T20:08:01Z | |
| dc.date | 2022-08-17T01:34:49Z | |
| dc.date | 2016-08-10T20:08:01Z | |
| dc.date | 2022-08-17T01:34:49Z | |
| dc.date | 2011 | |
| dc.date.accessioned | 2023-08-22T04:34:35Z | |
| dc.date.available | 2023-08-22T04:34:35Z | |
| dc.identifier | D07I1006 | |
| dc.identifier | https://hdl.handle.net/10533/112450 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8320274 | |
| dc.description | This investigation deals with the design, manufacturing, and testing of a large-capacity MR damper prototype. The MR damper uses external coils that magnetize the MR-fluid as it moves out of the main cylinder through an external cylindrical gap. In its design, multi-physics numerical simulations are used to better understand its force–velocity constitutive behavior, and its eventual use in conjunction with tuned mass dampers for vibration reduction of high-rise buildings. Multi-physics finite element models are used to investigate the coupled magnetic and fluid-dynamic behavior of these dampers and thus facilitate the proof-of-concept testing of several new designs. In these models, the magnetic field and the dynamic behavior of the fluid are represented through the well-known Maxwell and Navier–Stokes equations. Both fields are coupled through the viscosity of the magneto-rheological fluid used, which in turn depends on the magnetic field strength. Some parameters of the numerical model are adjusted using cyclic and hybrid testing results on a 15 ton MR damper with internal coils. Numerical and experimental results for the 15 ton MR damper showed very good agreement, which supports the use of the proposed cascade magnetic-fluid model. The construction of the 97 ton MR damper involved several technical challenges, such as the use of a bimetallic cylinder for the external coils to confine the magnetic field within a predefined magnetic circuit. As it should be expected, test results of the manufactured MR damper show that the damping force increases with the applied current intensity. However, a larger discrepancy between the predicted and measured force in the large damper is observed, which is studied and discussed further herein. | |
| dc.description | FONDEF | |
| dc.description | MASTER INGENIERIA | |
| dc.description | 112 | |
| dc.description | FONDEF | |
| dc.description | TERMINADA | |
| dc.language | eng | |
| dc.relation | instname: Conicyt | |
| dc.relation | reponame: Repositorio Digital RI2.0 | |
| dc.relation | info:eu-repo/grantAgreement/Fondef/D07I1006 | |
| dc.relation | info:eu-repo/semantics/dataset/hdl.handle.net/10533/93488 | |
| dc.rights | Atribución-NoComenrcial-SinDerivadas 3.0 Chile | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.title | Multi-physics model of a magneto-rheological damper and experimental validatión | |
| dc.type | Tesis Magíster | |
| dc.type | info:eu-repo/semantics/masterThesis | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | Tesis | |
