ORCID Profile
0000-0001-6205-3229
Current Organisations
Curtin University
,
International Islamic University Malaysia
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 08-2022
Publisher: SAGE Publications
Date: 14-02-2018
Abstract: Smart materials are kinds of designed materials whose properties are controllable with the application of external stimuli such as the magnetic field, electric field, stress, and heat. Smart materials whose rheological properties are controlled by externally applied magnetic field are known as magneto-rheological materials. Magneto-rheological materials actively used for engineering applications include fluids, foams, grease, elastomers, and plastomers. In the last two decades, magneto-rheological materials have gained great attention of researchers significantly because of their salient controllable properties and potential applications to various fields such as automotive industry, civil environment, and military sector. This article offers a recent progressive review on the magneto-rheological materials technology, especially focusing on numerous application devices and systems utilizing magneto-rheological materials. Conceivable limitations, challenges, and comparable advantages of applying these magneto-rheological materials in various sectors are analyzed critically, which provides a clear pathway to the researchers in selecting and utilizing these materials. The review starts with an introduction to the elementary description of magneto-rheological materials and their significant contribution in various fields. Following this, different types of the magneto-rheological materials, modeling of the magneto-rheological materials, magneto-rheological material–based devices, and their applications have been extensively reviewed to promote practical use of magneto-rheological materials in a wide spectrum of the application from the automobile to medical device.
Publisher: Informa UK Limited
Date: 31-08-2019
Publisher: Springer Science and Business Media LLC
Date: 11-2016
Publisher: MDPI AG
Date: 11-08-2022
DOI: 10.3390/SU14169936
Abstract: The traditional wave energy converters (WECs) use hydraulic or turbine-type power take-off (PTO) mechanisms which consist of many moving parts, creating mechanical complexity and increasing the installation and maintenance costs. Linear generator-based direct-drive WECs could be a solution to overcome this problem, but the efficiency of the single conventional linear generator is not high enough, and it cannot work satisfactorily in the low-frequency range. This article reviews the recent research developments of the linear permanent magnet (PM) generator-based WEC to harness maximum energy from ocean waves. It starts with a brief introduction and background of wave energy converters using linear generators. Following this, the working principle of the WECs with linear PM generators is briefly outlined. Subsequently, the analytical model of the linear PM generator-based WEC is studied. After that, the up-to-date developments of the linear PM generator-based PTO systems are studied. Despite some modifications resulting in complexity in the linear PM generator’s structure and a rise in manufacturing costs, the study shows the systems’ efficiencies increased by increasing magnetic flux and reducing cogging force. The key parameters and improvement issues that can increase the performances and efficiencies of the PTO systems are identified to help future researchers for further development. Moreover, the review discusses the numerical and experimental analysis tools, the typical control systems used by the researchers and the challenges of the linear generator-based wave energy conversion system. Finally, conclusions about the significant beneficial characteristics and design choice of the WEC linear generator structure are provided and related to the application conditions.
Publisher: Informa UK Limited
Date: 10-11-2017
Publisher: Springer Science and Business Media LLC
Date: 02-2016
Publisher: Author(s)
Date: 2018
DOI: 10.1063/1.5034562
Publisher: Research Square Platform LLC
Date: 09-12-2022
DOI: 10.21203/RS.3.RS-2127454/V1
Abstract: This paper aims to study the dynamics of the single-degree-of-freedom (SDOF) magnetic spring based oscillator system. The proposed oscillator system contains a nonmagnetic shaft, a floating permanent magnet (PM), and two fixed permanent magnets (PMs). All PMs are placed in such a way that they can repel each other. At first, the proposed system's magnetic properties and magnetic restoring force are studied. Experimental and numerical analysis have been carried out to validate the analytical investigation of the magnetic restoring force. The linear and nonlinear coefficients of the oscillator system are analysed from the magnetic restoring force. Moreover, how the gravitational force affects the equilibrium position is studied by varying the height of the oscillator. The magnetic restoring forces for different oscillator heights are also analysed. In addition, the system dynamics, such as d ing ratio, eigenvalues and natural frequencies of the oscillator system, are investigated with and without electromechanical coupling. Finally, the proposed system's energy generation capacity is examined using electromechanical coupling.
Publisher: SAGE Publications
Date: 06-2017
Abstract: In this study, an magnetorheological (MR) d er has been designed based on its energy harvesting capability which combines the key benefits of energy generation (reusing lost energy) and magnetorheological d ing (controllable d ing force). The energy harvesting part has a magnet and coil arrangement to generate energy. A two-dimensional axisymmetric model of the proposed magnetorheological d er is developed in COMSOL Multiphysics where different magnetic field properties are analysed generally by finite element method. Finally, the energy harvesting capability of the proposed magnetorheological d er model is tested by a universal testing machine and observed through an oscilloscope. The maximum induced output voltage was around 0.7 V.
Publisher: Zhejiang University Press
Date: 12-2017
Publisher: Elsevier BV
Date: 05-2020
Publisher: Springer Science and Business Media LLC
Date: 16-01-2019
Publisher: Indian Society for Education and Environment
Date: 30-05-2016
Publisher: Informa UK Limited
Date: 08-08-2017
No related grants have been discovered for Raju Ahamed.