My objective is to contribute to the advancement of innovative, sustainable, and efficient structural designs through rigorous research and practical application. Currently I am working on the liquid slosh dynamics inside irregular liquid tanks and employing them as Tuned Liquid Dampers (TLDs) to control structural vibration. The area covers the vibration control of tall flexible structures under wind and earthquake excitations. I aim to enhance my expertise in Finite Element Methods, Non-linear Dynamics (Structural Dynamics and Fluid Dynamics), Earthquake Engineering, and Vibration Control using Passive Dampers while collaborating with interdisciplinary teams to address current challenges in infrastructure development. By conducting impactful research and engaging in cutting-edge technologies, I seek to contribute to solving real-world engineering problems, improving safety standards, and developing resilient and sustainable infrastructure systems.
EDUCATION
Ph.D. in Civil Engineering, B-tech in Civil Engineering, Diploma in Civil Engineering
RESEARCH, TEACHING, or OTHER INTERESTS
Civil and Structural Engineering, Computational Mechanics, Building and Construction, Computational Mechanics
Nonlinear Finite Element Model for Sloped Wall Tuned Liquid Dampers Controlling the Nonlinear Seismic Response of Structures Sidhartha Sankar Roy, Kishore Chandra Biswal Journal of Computational and Nonlinear Dynamics, 2025 In many engineering fields, tuned liquid dampers (TLDs) are becoming cost-effective and low-maintenance vibration absorbers. The sloped wall TLDs inclined wall enables more liquid to participate in sloshing, which increases the sloshing force that opposes the inertial force of the structure and makes it a more efficient vibration controller than the conventional flat-bottom TLDs. When a structure experiences a strong excitation, its safety becomes uncertain because of the deterioration of structural stiffness, hence, it needs to be equipped with adequate damping arrangements. The suppression of the nonlinear vibration of the structures equipped with sloped wall TLDs associated with nonlinear sloshing has been investigated in this paper. The Eulerian-Lagrangian-based nonlinear finite element scheme for the TLD and the nonlinear spring-mass scheme for the structure are combined and employed for the numerical modeling of the present problem. Compared to the linear sloshing frequencies, the obtained nonlinear sloshing frequencies are closer to the existing experimental result, justifying the accuracy of the nonlinear model. For the TLD with the nonlinear sloshing model, the optimal tuning ratio is found to be slightly less than unity (i.e., 0.986–0.996), whereas, by the linear sloshing model, the predicted optimal tuning ratio remains higher than unity. The loss of energy during yielding causes less amount of energy to be transferred to the TLD tank resulting in a lower hydrodynamic base shear and corresponding poor response reduction.
Numerical Investigation of Sloped Wall Tank with Bottom-Mounted Internal Object for Structural Vibration Control Sidhartha Sankar Roy, Kishore Chandra Biswal International Journal of Structural Stability and Dynamics, 2025 Utilizing the inherent capacity of energy dissipation, liquid tanks are nowadays being employed as tuned liquid dampers (TLDs) for controlling unwanted structural vibration. The effective liquid mass that participates in convective mode controls the tank’s overall dynamic response. The stagnant liquid mass, which does not participate in sloshing at the bottom corners of the conventional rectangular and cylindrical TLDs, increases the total liquid mass and has no role in the vibration control of the supporting structure. The hydrodynamic behavior of the sloped wall tank under resonance conditions is demonstrated under harmonic excitation over a range of frequencies close to the fundamental sloshing frequency of the tank. However, the present study focuses on the effect of the modified geometrical configuration due to the bottom-mounted object on the slosh displacement and hydrodynamic base shear. A 2D finite element model developed employing the potential flow theory is used for the present numerical investigation. Compared to a conventional flat-bottom tank, the sloped wall tank exhibits a considerable increase in hydrodynamic base shear near resonance excitation. The dynamic impulsive and the convective response components of the base shear force have been successfully estimated. Also, the effectiveness of the proposed sloped wall tank with bottom-mounted internal object is examined under EL-Centro EW earthquake motion.
Influence of earthquake duration on the non-linear slosh dynamics of chamfered bottom liquid tanks using Mixed-Eulerian Lagrangian approach SS Roy, MR Behera, SK Nayak, KC Biswal Ocean Engineering 358, 125680 , 2026 2026
Cause and effect assessment of increased frequency and severity in tropical cyclone-driven wind load on urban building infrastructure in India AK Jena, SS Roy, MR Behera Urban Climate 67, 102918 , 2026 2026
Non-linear failure and collapse assessment of fixed base offshore structures under extreme multi hazard loading SS Roy, AK Jena, MR Behera, KC Biswal Structures 88, 111781 , 2026 2026
Modified Meshless Simulation of Violent Sloshing in Tuned Liquid Dampers with Limited Freeboard for Structural Vibration Control D Jena, KC Biswal, SS Roy Mechanics Research Communications, 104609 , 2025 2025
Geometric assessment of hydrodynamic response in liquid tanks under band-limited stochastic excitation using finite element modeling SS Roy, AK Jena, MR Behera, KC Biswal Structures 82, 110624 , 2025 2025 Citations: 2
Non-linear fluid-structure interaction of sloped wall tuned liquid dampers for mitigating the hysteretic response of multi-degree-of-freedom structures subjected to various … SS Roy, KC Biswal International Journal of Non-Linear Mechanics, 105299 , 2025 2025
Nonlinear Finite Element Model for Sloped Wall Tuned Liquid Dampers Controlling the Nonlinear Seismic Response of Structures SS Roy, KC Biswal Journal of Computational and Nonlinear Dynamics 20 (9), 091002 , 2025 2025 Citations: 2
Non-linear vibration control of multi-degree-of-freedom structures using multiple sloped wall tuned liquid dampers under near and far-fault earthquakes SS Roy, KC Biswal Structures 77, 109010 , 2025 2025 Citations: 5
Numerical investigation of sloped wall tank with bottom-mounted internal object for structural vibration control SS Roy, KC Biswal International Journal of Structural Stability and Dynamics 25 (02), 2440006 , 2025 2025 Citations: 10
Dynamic Analysis of Seismically Excited Sloped Wall Tanks and Tuned Liquid Dampers for Structural Vibration Control SS Roy 2025
Non-Linear Hybrid Eulerian-Lagrangian Model for Sloped Wall Liquid Dampers to Control Wind-Induced Vibration of Multi-Degree of Freedom Structures SS Roy, KC Biswal 2025
Non-linear sloshing characteristics of liquid inside a chamfered bottom tank with submerged internal object under near-and far-fault earthquakes SS Roy, KC Biswal Ocean Engineering 309, 118593 , 2024 2024 Citations: 7
Multiple Sloped Wall Tuned Liquid Dampers for Vibration Control of Structure Excited by Near and Far-Fault Earthquakes SS Roy, KC Biswal Journal of Vibration Engineering & Technologies 12 (7), 8465-8484 , 2024 2024 Citations: 3
Numerical investigation of seismically excited partially filled chamfered bottom tanks SS Roy, KC Biswal Iranian Journal of Science and Technology, Transactions of Civil Engineering … , 2024 2024 Citations: 12
Non-linear slosh dynamics of sloped wall tank with bottom-mounted object under seismic excitation SS Roy, KC Biswal International Journal of Non-Linear Mechanics 158, 104586 , 2024 2024 Citations: 10
Slosh dynamics of the seismically excited chamfered bottom tank with bottom-mounted internal object SS Roy, KC Biswal Journal of Earthquake and Tsunami 17 (06), 2350028 , 2023 2023 Citations: 11
Seismic behavior of sloped bottom tank with internal object SS Roy, KC Biswal International Journal of Structural Stability and Dynamics 23 (04), 2350071 , 2023 2023 Citations: 13
Vibration control of structures employing sloped wall tuned liquid dampers SS Roy, KC Biswal 2023
Non-linear finite element analysis of seismically excited sloped wall tank SS Roy, KC Biswal Ocean Engineering 267, 113212 , 2023 2023 Citations: 14
MOST CITED SCHOLAR PUBLICATIONS
Non-linear finite element analysis of seismically excited sloped wall tank SS Roy, KC Biswal Ocean Engineering 267, 113212 , 2023 2023 Citations: 14
Seismic behavior of sloped bottom tank with internal object SS Roy, KC Biswal International Journal of Structural Stability and Dynamics 23 (04), 2350071 , 2023 2023 Citations: 13
Numerical investigation of seismically excited partially filled chamfered bottom tanks SS Roy, KC Biswal Iranian Journal of Science and Technology, Transactions of Civil Engineering … , 2024 2024 Citations: 12
Slosh dynamics of the seismically excited chamfered bottom tank with bottom-mounted internal object SS Roy, KC Biswal Journal of Earthquake and Tsunami 17 (06), 2350028 , 2023 2023 Citations: 11
Numerical investigation of sloped wall tank with bottom-mounted internal object for structural vibration control SS Roy, KC Biswal International Journal of Structural Stability and Dynamics 25 (02), 2440006 , 2025 2025 Citations: 10
Non-linear slosh dynamics of sloped wall tank with bottom-mounted object under seismic excitation SS Roy, KC Biswal International Journal of Non-Linear Mechanics 158, 104586 , 2024 2024 Citations: 10
Non-linear sloshing characteristics of liquid inside a chamfered bottom tank with submerged internal object under near-and far-fault earthquakes SS Roy, KC Biswal Ocean Engineering 309, 118593 , 2024 2024 Citations: 7
Non-linear vibration control of multi-degree-of-freedom structures using multiple sloped wall tuned liquid dampers under near and far-fault earthquakes SS Roy, KC Biswal Structures 77, 109010 , 2025 2025 Citations: 5
Multiple Sloped Wall Tuned Liquid Dampers for Vibration Control of Structure Excited by Near and Far-Fault Earthquakes SS Roy, KC Biswal Journal of Vibration Engineering & Technologies 12 (7), 8465-8484 , 2024 2024 Citations: 3
Geometric assessment of hydrodynamic response in liquid tanks under band-limited stochastic excitation using finite element modeling SS Roy, AK Jena, MR Behera, KC Biswal Structures 82, 110624 , 2025 2025 Citations: 2
Nonlinear Finite Element Model for Sloped Wall Tuned Liquid Dampers Controlling the Nonlinear Seismic Response of Structures SS Roy, KC Biswal Journal of Computational and Nonlinear Dynamics 20 (9), 091002 , 2025 2025 Citations: 2
Influence of earthquake duration on the non-linear slosh dynamics of chamfered bottom liquid tanks using Mixed-Eulerian Lagrangian approach SS Roy, MR Behera, SK Nayak, KC Biswal Ocean Engineering 358, 125680 , 2026 2026
Cause and effect assessment of increased frequency and severity in tropical cyclone-driven wind load on urban building infrastructure in India AK Jena, SS Roy, MR Behera Urban Climate 67, 102918 , 2026 2026
Non-linear failure and collapse assessment of fixed base offshore structures under extreme multi hazard loading SS Roy, AK Jena, MR Behera, KC Biswal Structures 88, 111781 , 2026 2026
Modified Meshless Simulation of Violent Sloshing in Tuned Liquid Dampers with Limited Freeboard for Structural Vibration Control D Jena, KC Biswal, SS Roy Mechanics Research Communications, 104609 , 2025 2025
Non-linear fluid-structure interaction of sloped wall tuned liquid dampers for mitigating the hysteretic response of multi-degree-of-freedom structures subjected to various … SS Roy, KC Biswal International Journal of Non-Linear Mechanics, 105299 , 2025 2025
Dynamic Analysis of Seismically Excited Sloped Wall Tanks and Tuned Liquid Dampers for Structural Vibration Control SS Roy 2025
Non-Linear Hybrid Eulerian-Lagrangian Model for Sloped Wall Liquid Dampers to Control Wind-Induced Vibration of Multi-Degree of Freedom Structures SS Roy, KC Biswal 2025
Vibration control of structures employing sloped wall tuned liquid dampers SS Roy, KC Biswal 2023