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Tesis sobre el tema "Simplified dynamic analysis"

Autor: Grafiati

Publicado: 3 de junio de 2025

Última modificación: 31 de julio de 2025

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1

Lundberg, Ted. "Analysis of simplified dynamic truck models for parameter evaluation." Thesis, KTH, Fordonsdynamik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177304.

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The ride comfort in heavy commercial trucks is an important property that requires detailed testing to investigate how different vehicle components affect the response to road input. Trucks come in many different configurations and a customer purchasing a new truck often has the choice to specify number of axles, drive line and cabin type, type of suspension and so on. This gives that there are many vehicle variations that have to be tested to ensure good ride comfort. Testing many combinations of, for example, dampers in different environments and road conditions might be time consuming. The

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2

Johansson, Christoffer. "Simplified dynamic analysis of railway bridges under high-speed trains." Licentiate thesis, KTH, Bro- och stålbyggnad, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-122436.

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The world-wide development of new high-speed rail lines has led to more stringent design requirements for railway bridges. This is mainly due to the fact that a train at high speeds can cause resonance in the bridge superstructure. In order to avoid problems of this kind, it has become essential to perform dynamic simulations, which are usually carried out in a time consuming finite element program. The main reason for not using an analytical solution is that this type of solution only exists for simple bridges, e.g., simply supported bridges. The aim of this thesis, is therefore the developm

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3

González, Ignacio. "Dynamic Behaviour of the New Årsta Bridge to Moving Trains : Simplified FE ‐ Analysis and Verifications." Thesis, KTH, Bro- och stålbyggnad (byte av engelskt namn 20110630), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37019.

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4

Althoff, Eric C. "Detailed and Simplified Structural Modeling and Dynamic Analysis of Nuclear Power Plant Structures." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492642525831339.

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5

Heng, Piseth. "Simplified mechanical models for the nonlinear dynamic analysis of elasto-plastic steel structures impacted by a rigid body." Doctoral thesis, KTH, Bro- och stålbyggnad, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217281.

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Buildings subjected to impact and explosion are usually studied using large scale and highly nonlinear finite element model which are time-consuming. The first part of the thesis deals with the development of simple and accurate models for evaluating the nonlinear inelastic behaviour of steel frame structures subjected to impact. The research work in this part has produced four simplified models. The first model concerns with a 4DOF model that reproduces the behaviour of the impacted column. The restraining effect from the rest of the structure is modelled by an elastic spring, a head mass and

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6

Ramli, Muhd Harris Bin. "Dynamic Effects on Migration of Light Non-Aqueous Phase Liquids in Subsurface." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/189380.

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7

Homdim, Tchuenteu Joel Landry. "Analysis and dynamic modeling of intermediate distributors for balancing of production lines." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18626/.

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The work carried out at the company Pulsar Engineering s.r.l, and discussed in this thesis, focuses on the construction of a model for the dynamic simulation of the operations of a machine that allows feeding and sorting/merging in the tissue sector called REDS INTERMEDIATE. The goal is to derive a powerful dynamic model that can simulate a large range of REDS intermediate that could work in different existing operating modes (DIVERTER, COMBINER and By-pass modes) and containing all existing operating strategies (REVOLVER and TETRIS strategies). This was possible with the aid of a powerful s

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8

Kelly, Michael J. "Simplified Model for Rubber Friction to Study the Effect of Direct and Indirect DMA Test Results." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1627592247173898.

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9

Ibrahim, Ayman Wagdy Mohamed. "Predicting glare in open-plan offices using simplified data acquisitions and machine learning algorithms." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/204266/1/Ayman%20Wagdy%20Mohamed_Ibrahim_Thesis.pdf.

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Glare in open-plan offices can negatively affect the productivity and well-being of office workers. Accurate glare prediction is challenging, as occupants' sensitivity to glare may differ under the same conditions. Developed as part of an ARC Linkage Project, this thesis challenges the limitations prevalent in current glare metrics by delivering a new model of predicting glare for open-plan offices. By utilising machine learning (ML) techniques, more accurate tools and methods are unlocked to assist architects and lighting engineers in the early stages of the design process. They ultimately en

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10

Golzan, Seyyed Behnam. "Simplified design method for energy dissipating devices in retrofitting of seismically isolated bridges." Thèse, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/8948.

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Abstract: Highway bridges have great values in a country because in case of any natural disaster they may serve as lines to save people’s lives. Being vulnerable under significant seismic loads, different methods can be considered to design resistant highway bridges and rehabilitate the existing ones. In this study, base isolation has been considered as one efficient method in this regards which in some cases reduces significantly the seismic load effects on the structure. By reducing the ductility demand on the structure without a notable increase of strength, the structure is designed to rem

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11

Ikzer, Rita. "Dynamic Soil-Structure Interaction of a Portal Frame Railway Bridge - Numerical Analysis on a Case Study Bridge." Thesis, KTH, Bro- och stålbyggnad, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231877.

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In the field of structural dynamics, a broader knowledge about relevant phenomena that affect the dynamic behavior of railway bridges is vital for structural engineers and design code administrators. The knowledge might benefit in an increased understanding of e.g. the resonance phenomena, and in improvements of the existing design codes. A phenomenon that has received more attention in recent times is the so called soil-structure interaction (SSI), as it may significantly contribute to the stiffness and damping of a structural system. Previous investigations have suggested that the influence

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12

Bellemans, Aurélie. "Simplified plasma models based on reduced kinetics." Doctoral thesis, Universite Libre de Bruxelles, 2017. https://dipot.ulb.ac.be/dspace/bitstream/2013/261597/4/MAIN.pdf.

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Performing high-fidelity plasma simulations remains computationally expensive because of their large dimension and complex chemistry. Atmospheric re-entry plasmas for instance, involve hundreds of species in thousands of reactions used in detailed physical models. These models are very complex as they describe the non-equilibrium phenomena due to finite-rate processes in the flow. Chemical non-equilibrium arises because of the many dissociation, ionization and excitation reaction at various time-scales. Vibrational, rotational, electronic and translational temperatures characterize the flow an

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13

Tataie, Laila. "Méthodes simplifiées basées sur une approche quasi-statique pour l’évaluation de la vulnérabilité des ouvrages soumis à des excitations sismiques." Thesis, Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0123/document.

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Dans le cadre de la protection du bâti face au risque sismique, les techniques d’analyse simplifiées, basées sur des calculs quasi-statiques en poussée progressive, se sont fortement développées au cours des deux dernières décennies. Le travail de thèse a pour objectif d’optimiser une stratégie d’analyse simplifiée proposée par Chopra et al. (2001) et adoptée par les normes américaines FEMA 273. Il s’agit d’une analyse modale non linéaire découplée, dénommée par les auteurs UMRHA qui se caractérisent principalement par : des calculs de type pushover selon les modes de vibration dominants de la

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14

Ghavamian, Shahrokh. "Méthode simplifiée pour la simulation du comportement sismique des structures en béton armé : traitement des effets de l'élancement et estimateur d'erreurs." Cachan, Ecole normale supérieure, 1998. http://www.theses.fr/1998DENS0007.

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Le traitement en dynamique non linéaire du fonctionnement des structures en b. A. Est un problème complexe et couteux. L'aborder par des méthodes simplifiées est une solution avantageuse, a la condition de pouvoir conserver une description fine et réaliste des phénomènes majeurs. Analyse dans l'environnement d'une méthode par éléments finis multicouches, il a porte sur deux aspects majeurs : celui du traitement de l'élancement et celui de l'évaluation des erreurs liées a la discrétisation. Le code de calcul eficos initialement conçu avec des éléments poutres de type Navier-Bernoulli composés d

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15

Tsai, IHung, and 蔡宜宏. "The Simplified Analysis and Application of Soil-structure Dynamic Interaction." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/99927661111454834155.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>88<br>To simplify the analytical model of soil by using spring mechanism, the Winkler’s spring model is usually used for static soil-structure interaction problem, and the dynamic spring and dashpot are used in dynamic soil-structure interaction problem for engineering practice. If the finite element method is used to analyze the behavior of dynamic soil-structure interactions, the model will be very large; therein the degrees of freedom of soil occupy the major part of the analytical model. Hence, the lumped parameter method is applied and shear beams are used to si

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16

Campidelli, Manuel, Erasmo Viola, and Domenico Bruno. "Simplified Methods for Dynamic Analysis of Structures under Blast Loading." Thesis, 2007. http://hdl.handle.net/10955/764.

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Dottorato di Ricerca in Ingegneria dei Materiali e delle Strutture, XX Ciclo a.a. 2007<br>The increasing threat of extremely severe loading conditions caused by a number of explosive sources made engineers and scientists developing, during the last half century, several methods of analysis and design of blast–resistant structures. Simple, intermediate, and advanced computational approaches have been adopted, requiring increasing computational resources. These efforts led to the publication of several manuals and guidelines for the analysis and design of blast–resistant reinforced concret

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17

Jaw, Sain-Wu, and 卓聖武. "A Simplified Model for Nonlienar Dynamic Analysis of Eccentrically Braced Frame." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/75019215239852444312.

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碩士<br>國立交通大學<br>土木工程研究所<br>82<br>If a structure has same span length,in the design philosophy of strong-column-weak-beam ,we can suppose that columns have similar deformation shape.We also can suppose that the reflection point is the middle point of beam.We suppose the floor is rigid ,then the same floor has the same deformation.So we can condense the degrees of freedom of the same floor to two degrees of freedom and eccentr- ically brace has only one degree of freedom-X way. We compare th

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18

Yu-Chung, Li, and 李育忠. "A Simplified Model for Nonlinear Dynamic Analysis of A Plain Frame Structure." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/74062156406653920521.

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19

Chuang, Yung-Hsiang, and 莊詠翔. "Static and Dynamic Analysis of Simplified Models for Concentrically Braced Steel Frame." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/22553955029933519406.

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碩士<br>國立交通大學<br>土木工程系所<br>103<br>Numerical analysis has been widely used to design steel structures in seismic areas. As the complexity of structures and the demand of analysis accuracy increase, it is required to develop more efficient numerical models. This study used simplified models for concentrically braced steel frame, namely Fishbone model and Brace-Column model. The analysis program is PISA3D (Platform of Inelastic Structural Analysis for 3D Systems), which is developed by National Center for Research on Earthquake Engineering. According to the results of nonlinear static analysis (pu

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20

Chen, Jing-Long, and 陳景隆. "The Dynamic Simplified Analysis of High-Tech Industrial Structures undergoing Vertical Loading." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/07288414627297566451.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>93<br>This research verifies the application of the simplified model to soil-structure interaction (SSI) analysis in the frequency-domain and investigates the effects of SSI behaviors and dimensionless parameters on structural responses for high-tech industrial structures undergoing harmonic forces. The results obtained by using the optimized equivalent model consist with those obtained by the real model with complex impedance functions. In addition to the dimensionless frequency, the foundation embedded ratio, the foundation mass ratio, the story mass ratio, and the

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21

MARCHI, ANDREA. "Simplified seismic analysis of straight integral frame-abutment bridges." Doctoral thesis, 2022. http://hdl.handle.net/11573/1651730.

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Since the second post-war period, Integral Abutment Bridges (IABs) have become widespread in the construction of overpasses in America and Europe, as they allow to save on the costs of inspection and maintenance of the bearings and deck joints. They are characterized by having an internal continuity constraint between abutments and deck. Their static and dynamic behavior is thus characterized by the strong interaction between structure and soil. Due to these structural characteristics, the analysis models cannot disregard the contribution of the surrounding soil non-linear behavior. While the

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22

Rodrigues, André Filipe da Silva. "Viability and Applicability of Simplified Models for the Dynamic Analysis of Ballasted Railway Tracks." Doctoral thesis, 2017. http://hdl.handle.net/10362/21663.

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The numerical models of the railway track are fundamental tools for the study of their dynamic behaviour, with implications for the safety and comfort of rail transport and the degradation and need for maintenance of the track. The importance of these models has increased alongside the speed and capacity of the railway vehicles over the last decades. Although the use of three-dimensional finite element models is becoming common practice, simplified models are still relevant, due to their simplicity of implementation and results interpretation, and low computational cost. However, the gen

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23

Ab-Wahab, Yunus Bin. "Development of the simplified method to evaluate dynamic mechanical analysis data on asphalt-aggregate mixtures." Thesis, 1993. http://hdl.handle.net/1957/36228.

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Testing of asphalt binders and asphalt-aggregate mixtures using dynamic mechanical analysis is becoming popular with improvements in high-speed computers, precision equipment, and computer software. Researchers are trying to describe the behavior of asphalt binders and asphalt-aggregate mixtures in terms of their time- and temperature-dependent linear viscoelastic behavior. The objectives of this thesis were to develop a simplified pneumatic test to perform dynamic mechanical analysis (DMA), to evaluate the performance of the pneumatic and hydraulic test systems using the computer software dev

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24

Carvalho, Diogo Miguel Vieira Alves de. "Simplified analysis of RC beam and beam-column elements under blast loading." Master's thesis, 2021. http://hdl.handle.net/10362/130563.

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The present work aims to provide a non-linear numerical tool capable of analysing the structural response of reinforced concrete beam and beam-column elements when subjected to blast loads. The increasing frequency of explosion events, stemming from terrorist attacks resorting to improvised explosive devices, or from accidental misuse of hazardous substances has shined a new light on the topic of blast resistant structural design. Recently, many studies have been conducted to better understand how to improve the design of blast resistant solutions in newly constructed buildings, as wel

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25

Zangeneh, Kamali Abbas. "Dynamic Soil-Structure Interaction Analysis of Railway Bridges : Numerical and Experimental Results." Licentiate thesis, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224313.

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The work reported in this thesis presents a general overview of the dynamic response of short-span railway bridges considering soil-structure interaction. The study aims to identify the effect of the surrounding and underlying soil on the global stiffness and damping of the structural system. This may lead to better assumptions and more efficient numerical models for design.A simple discrete model for calculating the dynamic characteristics of the fundamental bending mode of single span beam bridges on viscoelastic supports was proposed. This model was used to study the effect of the dynamic s

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26

Tabet, Felipe. "Static and dynamic analyses of a transmission tower-line system using a simplified model." 2010. http://hdl.handle.net/1993/21363.

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