World's Best Scientists 2026 revealed!

D-Index & Metrics

Mechanical and Aerospace Engineering

D-Index
45
Citations
7559
World Ranking
1535
National Ranking
598

Electronics and Electrical Engineering

D-Index
45
Citations
7530
World Ranking
3581
National Ranking
1314

Overview

Nejat Olgac is affiliated with the University of Connecticut in the United States and has conducted research primarily in the field of engineering, with a focus on civil and structural engineering, biomedical engineering, control and systems engineering, modeling and simulation, and mechanical engineering.

The scientist's main research topics include vibration control and rheological fluids, seismic performance and analysis, acoustic wave phenomena research, vibration and dynamic analysis, fractional differential equations solutions, advanced control systems design, and acoustic wave resonator technologies.

Nejat Olgac's recent publications cover several areas of vibration science and control technology. Recent papers include:

  • Actively Tuned Noncollocated Vibration Absorption: An Unexplored Venue in Vibration Science and a Benchmark Problem (2020, IEEE Transactions on Control Systems Technology)
  • Control design, analysis, and optimization of fractional-order delayed resonator for complete vibration absorption (2023, Journal of Sound and Vibration)
  • A Robust Delayed Resonator Construction Using Amplifying Mechanism (2022, Journal of vibration and acoustics)
  • Delayed resonator with multiple distributed delays - Considering and optimizing the inherent loop delay (2024, Journal of Sound and Vibration)
  • Benchmark Problem: Non-collocated Vibration Absorption Concept Challenges and Trends (2022, IFAC-PapersOnLine)

Frequent collaborators in Olgac's research include:

  • Yifan Liu
  • Ryan Jenkins
  • Jiazhi Cai
  • Qingbin Gao
  • Cheng Li

Nejat Olgac's work has been published in journals that regularly feature research on vibration and control systems technology, as well as sound and vibration studies. Frequent publication venues include:

  • Journal of Sound and Vibration
  • IEEE Transactions on Control Systems Technology
  • Journal of Vibration and Acoustics
  • IFAC-PapersOnLine
  • Advances in Mechanical Engineering

Best Publications

  • An exact method for the stability analysis of time-delayed linear time-invariant (LTI) systems

    N. Olgac;R. Sipahi

  • A novel active vibration absorption technique : delayed resonator

    N. Olgac;B.T. Holm-Hansen

  • Sliding mode control with perturbation estimation (SMCPE): a new approach

    Hakan Elmali;Nejat Olgac

  • Complete stability robustness of third-order LTI multiple time-delay systems

    Rifat Sipahi;Nejat Olgac

  • Robust output tracking control of nonlinear MIMO systems via sliding mode technique

    Hakan Elmali;Nejat Olgac

  • Implementation of sliding mode control with perturbation estimation (SMCPE)

    H. Elmali;N. Olgac

  • Stability Robustness Analysis of Multiple Time- Delayed Systems Using “Building Block” Concept

    H. Fazelinia;R. Sipahi;N. Olgac

  • Sliding Mode Control With Sliding Perturbation Observer

    Jairo Terra Moura;Hakan Elmali;Nejat Olgac

  • Active Vibration Control of Distributed Systems Using Delayed Resonator With Acceleration Feedback

    Nejat Olgac;Hakan Elmali;Martin Hosek;Mark Renzulli

  • Brief A practical method for analyzing the stability of neutral type LTI-time delayed systems

    Nejat Olgac;Rifat Sipahi

  • A unique methodology for the stability robustness of multiple time delay systems

    Rifat Sipahi;Nejat Olgac

  • Extended Kronecker Summation for Cluster Treatment of LTI Systems with Multiple Delays

    Ali Fuat Ergenc;Nejat Olgac;Hassan Fazelinia

  • A new perspective and analysis for regenerative machine tool chatter

    Nejat Olgac;Martin Hosek

  • An Exact Method for the Stability Analysis of Linear Consensus Protocols With Time Delay

    R. Cepeda-Gomez;N. Olgac

  • Dynamics and Stability of Variable-pitch Milling:

    Nejat Olgac;Rifat Sipahi

  • MODAL ANALYSIS OF FLEXIBLE BEAMS WITH DELAYED RESONATOR VIBRATION ABSORBER: THEORY AND EXPERIMENTS

    N. Olgac;N. Jalili

  • MULTIPLE DELAYED RESONATOR VIBRATION ABSORBERS FOR MULTI-DEGREE-OF-FREEDOM MECHANICAL STRUCTURES

    N. Jalili;N. Olgac

  • Tunable Active Vibration Absorber: The Delayed Resonator

    Nejat Olgac;Brian Holm-Hansen

  • Delayed resonator with acceleration feedback - Complete stability analysis by spectral methods and vibration absorber design

    Tomáš Vyhlídal;Nejat Olgac;Vladimír Kučera

  • A Unique Methodology for Chatter Stability Mapping in Simultaneous Machining

    Nejat Olgac;Rifat Sipahi

  • Theory and implementation of sliding mode control with perturbation estimation (SMCPE)

    H. Elmali;N. Olgac

Frequent Co-Authors

Rifat Sipahi
Rifat Sipahi Northeastern University
Nader Jalili
Nader Jalili University of Alabama
Richard W. Longman
Richard W. Longman Columbia University
John D. Biggers
John D. Biggers Harvard University
Vladimír Kučera
Vladimír Kučera Czech Technical University in Prague
Mehmet Toner
Mehmet Toner Harvard University
Kevin C K Lloyd
Kevin C K Lloyd University of California, Davis
Silviu-Iulian Niculescu
Silviu-Iulian Niculescu CentraleSupélec

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