Soltannia, Babakhttp://hdl.handle.net/10222/765922023-12-08T06:03:28Z2023-12-08T06:03:28ZStatic and Dynamic Characteristics of Nano-Reinforced 3D-Fiber Metal Laminates Using Non-Destructive TechniquesSoltannia, BabakMertiny, PierreTaheri, Faridhttp://hdl.handle.net/10222/792302020-05-21T07:54:26Z2020-05-15T00:00:00ZStatic and Dynamic Characteristics of Nano-Reinforced 3D-Fiber Metal Laminates Using Non-Destructive Techniques
Soltannia, Babak; Mertiny, Pierre; Taheri, Farid
Uncontrolled vibration in mechanical systems (e.g. aircraft, trains and automobiles) may result in undesirable noise and eventually, cause mechanical failure. In this context, the main objective of the present research is to explore parameters that govern and affect the frequency response of three-dimensional fiber metal laminates (3DFMLs). 3DFMLs are a class of novel lightweight hybrid material systems with great potential for use in aforementioned applications. Therefore, the vibration characteristics of the two most commonly used configurations of 3DFMLs are experimentally investigated by nontraditional and conventional approaches. The material damping is also improved by the inclusion of two different types of nanocarbon particles (NCP) within the core and/or interfaces of the hybrid system. The results are presented and compared. The inclusion of NCP improved the fundamental frequency of the system slightly; however, material damping was enhanced significantly when only 1 wt% NCP was used in the interfacial sections of the system.
2020-05-15T00:00:00ZVibration Analysis of Pole-vaulting via Mathematical ModelingJi, ZeenSoltannia, Babakhttp://hdl.handle.net/10222/789982020-04-30T07:34:59Z2020-08-04T00:00:00ZVibration Analysis of Pole-vaulting via Mathematical Modeling
Ji, Zeen; Soltannia, Babak
This project studied the factors including the weight of athlete (𝑚) and stiffness of the pole ( 𝑘) that can influence the efficiency of the energy conversion. The efficiency refers to the percentage of initial kinetic energy transferred into potential energy stored in a pole. A mathematical model is built based on Hamilton ’s method to simulate the pole motion. The efficiency can be optimized if 𝑚 and 𝑘 satisfy a linear expression that has been derived in the project.
2020-08-04T00:00:00ZVibration Characteristics of Multi-Wall Carbon Nanotubes (MWCNT) Reinforced 3D-Fiber Metal Laminates (3D-FML)Soltannia, BabakMertiny, PierreTaheri, Faridhttp://hdl.handle.net/10222/765952019-11-14T08:42:12Z2019-07-24T00:00:00ZVibration Characteristics of Multi-Wall Carbon Nanotubes (MWCNT) Reinforced 3D-Fiber Metal Laminates (3D-FML)
Soltannia, Babak; Mertiny, Pierre; Taheri, Farid
Uncontrolled vibration in mechanical systems results in undesirable noise and may cause the eventual mechanical failure of the system. This paper explores the parameters that govern and affect the frequency response of a novel 3D-fiber metal laminate (3D-FML). Specifically, the frequency response of the 3D-FML is evaluated and its vibration response is enhanced by an effective solution. The results obtained by the various approaches are presented and compared to the results obtained by a traditional approach. Moreover, the damping of the system could be enhanced quite significantly, up to 3.49 times, when only 1 wt% multi-wall carbon nanotubes was used to reinforce the system.
Conference Paper
2019-07-24T00:00:00ZSolving the Dirichlet Problem for Vibration of Parallelogram-Shaped Membrane using Method of Partial DomainsShakeri Mobarakeh, PouyanGrinchenko, Victor TimofeevichSoltannia, Babakhttp://hdl.handle.net/10222/765942019-11-14T08:36:18Z2019-10-30T00:00:00ZSolving the Dirichlet Problem for Vibration of Parallelogram-Shaped Membrane using Method of Partial Domains
Shakeri Mobarakeh, Pouyan; Grinchenko, Victor Timofeevich; Soltannia, Babak
In this study, the Dirichlet boundary problem for vibration of a parallelogram-shaped membrane is solved. The simplicity and transparency of the proposed procedures allow one to clarify the specific features of some state-of-the-art approaches to solve similar problems of mathematical physics. For many types of domains, including a wide range of non-canonical ones, the use of the concept of a general solution of the boundary value problem makes it possible to construct a numerical-analytical solution to the problem. In this case, sets of partial solutions for the basic equations of mathematical physics are used. The main idea is to indicate effective ways to determine arbitrary coefficients and functions that are part of a general solution. The conventional approach for deriving numerical-analytical solutions is used based on the mean square deviation minimization and collocation methods.
Conference Paper
2019-10-30T00:00:00Z