Advances in Vibration Engineering and Structural Dynamics

Beltrán-Carbajal, Francisco

doi:10.5772/3421

2012

DOI: 10.5772/3421

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Advances in Vibration Engineering and Structural Dynamics

Francisco Beltrán-Carbajal¹

Abstract: obtained the Electromechanical Engineer's degree in 1993 from the Instituto Tecnológico de Zacatepec (México) and the PhD. degree in Electrical Engineering (Mechatronics) in 2004 from the Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) in Mexico City (Mexico).

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Cited by 6 publications

References 7 publications

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The exact solutions of the conformable time fractional version of the generalized Pochhammer–Chree equation

Nuwairan

2022

Math Sci

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The time-fractional version of the generalized Pochhammer–Chree equation is analyzed. In this paper, the equation is converted into an ordinary differential equation by applying certain real transformation, then the discrimination of polynomials system is used to find exact solutions depending on the fractional order derivative. The obtained solutions are graphically illustrated for different values of the fractional order derivative keeping the other parameters fixed.

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The exact solutions of the conformable time fractional version of the generalized Pochhammer–Chree equation

Nuwairan

2022

Math Sci

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An Energy-Based Approach for n-d.o.f. Passive Dual-User Haptic Training Systems

et al. 2019

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This paper introduces a dual-user training system whose design is based on an energetic approach. This kind of system is useful for supervised hands-on training where a trainer interacts with a trainee through two haptic devices, in order to practice on a manual task performed on a virtual or teleoperated robot (for example for an MIS task in a surgical context). This paper details the proof of stability of an Energy Shared Control (ESC) architecture we previously introduced for one degree of freedom (d.o.f.) devices. An extension to multiple degrees of freedom is proposed, along with an enhanced version of the Adaptive Authority Adjustment (AAA) function. Experiments are carried out with 3 d.o.f. haptic devices in free motion as well as in contact contexts in order to show the relevance of this architecture.

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Prediction of Dynamic Parameters of Variable Diameter Shell Composite Structure via 2-D Subscale Modeling

Zai¹,

Sami

Khan

et al. 2021

Journal of Testing and Evaluation

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Prediction of possible vibration responses for a composite structure via subscale modeling is discussed in this article. The analytical correlations for three-dimensional (3-D) subscale modeling for metallic structures cannot be directly used for composite structures. In such structures, change in thickness can alter the mechanical properties of a composite structure and its prototype; therefore, vibration characteristics can only be predicted via two-dimensional (2-D) subscale modeling. For this purpose, the 3-D analytical relations are customized for 2-D subscale modeling along with an additional parameter, i.e., rigidity factor (RF), avoiding violation of dimensional consistency of the structure. They are also validated experimentally for variable diameter glass fiber shell composite structure. Three different approaches were used to develop these empirical correlations, which were then compared to determine the best one, closely matching the experimental results. It is found that empirical relations obtained for the 2-D subscaling technique produces better results against their counterpart 3-D subscale correlations. The dynamic behavior of shell structure can be predicted within a 10 % error band. Moreover, it was found that the research can be applied to all the composite shell structures that are difficult to scale in the third dimension.

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Advances in Vibration Engineering and Structural Dynamics

Cited by 6 publications

References 7 publications

The exact solutions of the conformable time fractional version of the generalized Pochhammer–Chree equation

The exact solutions of the conformable time fractional version of the generalized Pochhammer–Chree equation

An Energy-Based Approach for n-d.o.f. Passive Dual-User Haptic Training Systems

Prediction of Dynamic Parameters of Variable Diameter Shell Composite Structure via 2-D Subscale Modeling

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