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 16 of 16 for “"Nonlinear Vibrations"”.
-
Nonlinear vibrations of long slender beams
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1983.
-
Nonlinear Vibrations of Cantilever Beams and Plates
A study of the nonlinear vibrations of metallic cantilever beams and plates subjected to transverse harmonic excitations is presented. Both experimental and theoretical results are presented. The primary focus is however on the transfer of energy between widely spaced modes via modulation. This …
-
Nonlinear Vibrations of Metallic and Composite Structures
… Of special interest is that the often ignored nonlinear curvature is stronger than the nonlinear inertia for the first mode. Also, the addition of quadratic damping to the model improves the agreement between the theoretical and experimental results. In the second study, multi-mode responses of …
-
Nonlinear Vibrations of Doubly Curved Cross-PLy Shallow Shells
… of this work is to study the local and global nonlinear vibrations of isotropic single-layered and multi-layered cross-ply doubly curved shallow shells with simply supported boundary conditions. The study is based-on the full nonlinear partial-differential equations of motion for shells. These …
-
Nonlinear vibrations of straight and buckled beams under harmonic excitation.
Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. Thesis. 1970. Ph.D.
-
A Theoretical and Experimental investigation of Nonlinear Vibrations of Buckled Beams
… methods to determine approximate solutions of nonlinear continuous systems. Recently, it has been proved that finite-degree-of-freedom Galerkin-type discretization procedures applied to some distributed-parameter systems may fail to predict the correct dynamics. By contrast, direct procedures …
-
Nonlinear vibrations: a comparative study with applications to centrifugal pendulum vibration absorbers ; Nonlinear aspects of the performance of centrifugal pendulum vibration absorbers
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1963.
-
Active Nonlinear Vibration Control of Engineering Structures of Multiple Dimensions
An active nonlinear mechanical vibration control strategy is developed in the research of the author’s PhD program for the nonlinear vibration control of engineering structures of multiple dimensions. The proposed control strategy has been applied in several wildly applied typical engineering …
-
A twenty DOF element for nonlinear analysis of unsymmetrically laminated beams
… a simple one- dimensional finite element for the nonlinear analysis of symmetrically and unsymmetrically laminated composite beams including shear deformation. There is a need for a simple and efficient method for analyzing unsymmetrically laminated beams since no other study on this topic is …
-
Nonlinear vibration and chaotic motion of uniform and non-uniform carbon nanotube resonators.
… of CNTs are focused on the linear and free vibrations and also, CNTs are supported by linear foundations. The main goal of this research is to develop nonlinear vibration analysis of CNTs having geometrical nonlinearity and being rested on nonlinear Winkler and Pasternak foundations. The …
-
Nonlinear resonances in systems having many degrees of freedom
… combination and internal resonances in a weakly nonlinear system having many degrees of freedom. The system has cubic nonlinearities, modal linear viscous damping and is subject to harmonic excitations. The method of multiple scales, a perturbation technique, is used to develop a unified method …
-
Nonlinear Behaviors Analysis and Nonlinear Characteristics Diagnosing of Mechanical Vibration Systems
… understanding and effective diagnosis of nonlinear behaviors are important in dynamical analyses of mechanical systems and may provide crucial guidance to the design and control of mechanical systems. In this research, the nonlinear behavior and stability of an elastic suspended cable …
-
Axisymetric vibrations of homogeneous and sandwich spherical shells with a hole at the center
… and the theory of elasticity, both linear and nonlinear governing equations of motion are derived for elastic spherical shells. Most of the analysis is focused on the free axisymmetric vibrations of homogeneous and sandwich shallow spherical shells. The nonlinear behavior, which allows for …
-
Analysis of Linear and Nonlinear Quasiperiodic Metamaterials with Local Resonators
This dissertation investigates the linear and nonlinear topological phenomena of quasiperiodic metamaterials with the inclusion of local resonators using both analytical and numerical approaches. The proposed metamaterial is modeled as a spring-mass chain with each mass coupled to a single …
-
Performance Limits of Active Noise Control for Nonlinear Systems: A Machine Learning Perspective
… the performance limits of ANC systems in nonlinear dynamical systems, with a particular emphasis on automotive and headphone applications. Both feedback and feedforward ANC systems are considered, and their limitations are analysed from a machine learning perspective. In feedback ANC, …