RAKESH RANJAN CHAND

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Energy, Computational Mechanics, Mechanics of Materials

Scopus Publications

• Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester
  Rakesh Ranjan Chand, Amit Tyagi
  Journal of Intelligent Material Systems and Structures, 2023
  The efficiency of any rotational piezoelectric vibration energy harvester (RVEH) can be improved by redesigning its host beam and making provision for self-tuning the harvester’s natural frequency with the rotational driving frequency. This article presents the design and analysis of an exponentially tapering width RVEH. The parameters for the proposed harvester’s natural frequency characteristics are acknowledged, and their effects on the peak open-circuit (OC) voltage response are discussed. A mathematical model of the system is formulated using the Euler-Bernoulli beam theory and Hamilton’s principle. Galerkin’s technique is used to acquire the system’s mass normalized mode shapes in matrix form. The proposed mathematical model is verified through ANSYS Mechanical APDL simulations and experimental methods. The harvester’s responses are obtained through MATLAB code. The two types of parameters that modify the harvester’s fundamental frequency are identified and analyzed. The proposed harvester delivered an improved power density (PD) of 5.27 [Formula: see text] and a performance amplification factor (PAF) of 3.14, operating at 7.968 Hz.
• Parabolic tapering piezoelectric rotational energy harvester: Numerical analysis with experimental validation
  Rakesh Ranjan Chand, Amit Tyagi
  Mechanics of Advanced Materials and Structures, 2023
  Inadequate host beam design leads to the inefficiency of any piezoelectric vibration energy harvester. This article presents a parabolic tapering width piezoelectric energy harvester under rotational excitation. The Euler-Bernoulli theory, Hamilton's principle, and Galerkin's approach are used for mathematical modeling to investigate the frequency characteristics and open-circuit voltage response. Finally, experiments are conducted for validation. Compared to earlier reported designs, the proposed harvester produced high voltage-per-total mass (43.618 V/Kg) and performance amplification factor (4.18), besides the advantageous low natural frequency. This research’s findings can be used in real-time health monitoring of rotating machine components and fault detection mechanisms.
• Parametric Study of a Revolving Piezoelectric Tapered-Bimorph Beam Subjected to Pulsating Axial Load Considering Various Boundary Conditions
  Rakesh Ranjan Chand, Amit Tyagi
  Lecture Notes in Mechanical Engineering, 2023
• Investigation of Polypropylene-copper Polymer-matrix Composite
  Nanoworld Journal, 2023
• Investigation of the Effects of the Piezoelectric Patch Thickness and Tapering on the Nonlinearity of a Parabolic Converging Width Vibration Energy Harvester
  R. R. Chand, A. Tyagi
  Journal of Vibration Engineering and Technologies, 2022
• Parametric Analysis of a Rotational Piezoelectric-Coupled Tapered-Bimorph Structure with Various Boundary Conditions Under Transient Axial Loading
  R. R. Chand, A. Tyagi
  Journal of Vibration Engineering and Technologies, 2021
• Parametric Investigation of a Rotational Parabolic-Tapered Cantilever with Elliptical Sectional Area Exposed to Variable Thermal Gradient and Axial Dynamic Load
  Rakesh Ranjan Cahnd, Amit Tyagi
  Lecture Notes in Mechanical Engineering, 2021
• Parametric Stability Analysis of a Parabolic-Tapered Rotating Beam Under Variable Temperature Grade
  R. R. Chand, P. K. Behera, M. Pradhan, P. R. Dash
  Journal of Vibration Engineering and Technologies, 2019
• Study of static and dynamic stability of an exponentially tapered revolving beam exposed to a variable temperature grade under axial loading
  Rakesh Ranjan Chand Chand, Pravat Kumar Behera, Madhusmita Pradhan, Pusparaj Dash
  International Journal of Acoustics and Vibrations, 2019
  This research work is concerned with the static and dynamic stability study of an exponentially tapered revolving beam having a circular cross-section exposed to an axial live excitation and a variable temperature grade. The stability is analysed for clamped-clamped, clamped-pinned, and pinned-pinned end arrangements. Hamilton’s principle is used to develop the equation of motion and accompanying end conditions. Then, the non-dimensional form of the equation of motion and the end conditions are found. Galerkin’s process is used to find a number of Hill’s equations from the non-dimensional equations. The parametric instability regions are acquired by means of the Saito-Otomi conditions. The consequences of the variation parameter, revolution speed, temperature grade, and hub radius on the instability regions are examined for both static and dynamic load case and represented by a number of plots. The legitimacy of the results is tested by plotting different graphs between displacement and time using the Runge-Kutta fourth-order method. The results divulge that the stability is increased by increasing the revolution speed; however, an increase in the variation parameter leads to destabilization in the system and for same parameters, the stability is less in the case of a variable temperature grade than that of a constant temperature grade condition.

RECENT SCHOLAR PUBLICATIONS

• A highly efficient tapering bimorph rotational energy harvester subjected to dynamic axial excitation
  RR Chand, A Tyagi
  Challenges and Opportunities in Industrial and Mechanical Engineering: A … , 2024
  2024
  Citations: 1
• Parabolic tapering piezoelectric rotational energy harvester: numerical analysis with experimental validation
  RR Chand, A Tyagi
  Mechanics of Advanced Materials and Structures 30 (18), 3652-3661 , 2023
  2023
  Citations: 9
• Parametric Study of a Revolving Piezoelectric Tapered-Bimorph Beam Subjected to Pulsating Axial Load Considering Various Boundary Conditions
  RR Chand, A Tyagi
  Recent Trends in Mechanical Engineering: Select Proceedings of PRIME 2021 … , 2023
  2023
• Investigation of Polypropylene-copper Polymer-matrix Composite
  S Bhoi, RR Chand, BD Rao
  NanoWorld J 9 (S1), S455-S458 , 2023
  2023
• Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester
  RR Chand, A Tyagi
  Journal of Intelligent Material Systems and Structures 34 (1), 15-28 , 2023
  2023
  Citations: 9
• Investigation of the Effects of the Piezoelectric Patch Thickness and Tapering on the Nonlinearity of a Parabolic Converging Width Vibration Energy Harvester
  RR Chand, A Tyagi
  Journal of Vibration Engineering & Technologies 10 (1), 1-18 , 2021
  2021
  Citations: 12
• Parametric analysis of a rotational piezoelectric-coupled tapered-bimorph structure with various boundary conditions under transient axial loading
  RR Chand, A Tyagi
  Journal of Vibration Engineering & Technologies 9 (5), 907-917 , 2021
  2021
  Citations: 4
• PARABOLIC AND EXPONENTIALLY TAPERING WIDTH PVEHs FOR TRANSVERSE AND ROTATIONAL MOTION APPLICATIONS
  RR Chand
  IIT (BHU) Varanasi , 2021
  2021
• Parametric Investigation of a Rotational Parabolic-Tapered Cantilever with Elliptical Sectional Area Exposed to Variable Thermal Gradient and Axial Dynamic Load
  RR Chand, A Tyagi
  ITME-2019 2021 (Recent Advances in Mech. Engineering), 71-78 , 2020
  2020
• Study of static and dynamic stability of an exponentially tapered revolving beam exposed to a variable temperature grade under axial loading
  RR Chand, PK Behera, M Pradhan, P Dash
  Int J Acoust Vib 24, 504-510 , 2019
  2019
  Citations: 7
• Parametric stability analysis of a parabolic-tapered rotating beam under variable temperature grade
  RR Chand, PK Behera, M Pradhan, PR Dash
  Journal of Vibration Engineering & Technologies 7 (1), 23-31 , 2019
  2019
  Citations: 16

MOST CITED SCHOLAR PUBLICATIONS

• Parametric stability analysis of a parabolic-tapered rotating beam under variable temperature grade
  RR Chand, PK Behera, M Pradhan, PR Dash
  Journal of Vibration Engineering & Technologies 7 (1), 23-31 , 2019
  2019
  Citations: 16
• Investigation of the Effects of the Piezoelectric Patch Thickness and Tapering on the Nonlinearity of a Parabolic Converging Width Vibration Energy Harvester
  RR Chand, A Tyagi
  Journal of Vibration Engineering & Technologies 10 (1), 1-18 , 2021
  2021
  Citations: 12
• Parabolic tapering piezoelectric rotational energy harvester: numerical analysis with experimental validation
  RR Chand, A Tyagi
  Mechanics of Advanced Materials and Structures 30 (18), 3652-3661 , 2023
  2023
  Citations: 9
• Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester
  RR Chand, A Tyagi
  Journal of Intelligent Material Systems and Structures 34 (1), 15-28 , 2023
  2023
  Citations: 9
• Study of static and dynamic stability of an exponentially tapered revolving beam exposed to a variable temperature grade under axial loading
  RR Chand, PK Behera, M Pradhan, P Dash
  Int J Acoust Vib 24, 504-510 , 2019
  2019
  Citations: 7
• Parametric analysis of a rotational piezoelectric-coupled tapered-bimorph structure with various boundary conditions under transient axial loading
  RR Chand, A Tyagi
  Journal of Vibration Engineering & Technologies 9 (5), 907-917 , 2021
  2021
  Citations: 4
• A highly efficient tapering bimorph rotational energy harvester subjected to dynamic axial excitation
  RR Chand, A Tyagi
  Challenges and Opportunities in Industrial and Mechanical Engineering: A … , 2024
  2024
  Citations: 1
• Parametric Study of a Revolving Piezoelectric Tapered-Bimorph Beam Subjected to Pulsating Axial Load Considering Various Boundary Conditions
  RR Chand, A Tyagi
  Recent Trends in Mechanical Engineering: Select Proceedings of PRIME 2021 … , 2023
  2023
• Investigation of Polypropylene-copper Polymer-matrix Composite
  S Bhoi, RR Chand, BD Rao
  NanoWorld J 9 (S1), S455-S458 , 2023
  2023
• PARABOLIC AND EXPONENTIALLY TAPERING WIDTH PVEHs FOR TRANSVERSE AND ROTATIONAL MOTION APPLICATIONS
  RR Chand
  IIT (BHU) Varanasi , 2021
  2021
• Parametric Investigation of a Rotational Parabolic-Tapered Cantilever with Elliptical Sectional Area Exposed to Variable Thermal Gradient and Axial Dynamic Load
  RR Chand, A Tyagi
  ITME-2019 2021 (Recent Advances in Mech. Engineering), 71-78 , 2020
  2020