Rifat Sipahi

Professor,  Mechanical and Industrial Engineering
Associate Chair for Undergraduate Affairs,  Mechanical and Industrial Engineering
Program Director,  Master of Science in Robotics
Faculty Advisor,  Master of Science in Mechatronics concentration

Contact

Social Media

Office

  • 334J SN
  • 617.373.6011

Lab

  • 243 FR

Research Focus

Control systems and mechatronics; stability analysis and control synthesis of dynamical systems with delays; interplay between stability, delays, and graphs; control-systems-aided human-machine systems; engineering education research; disability research; systems biology

About

Sipahi received his BS from Technical University of Istanbul in 2000, and MS and PhD degrees respectively in 2002 and 2005 from University of Connecticut, all in mechanical engineering. Awarded with a Chateuabriand scholarship by the French government, he has been a postdoctoral fellow at Universite de Technologie de Compiegne, HeuDiaSyC Labs (CNRS) in France. He joined the Department of Mechanical and Industrial Engineering at Northeastern University in August 2006 where he is currently a Professor and Associate Chair for Undergraduate Affairs.

Sipahi is the recipient of the 2015 ASME Dynamic Systems and Control Division Outstanding Young Investigator Award, a 2011 DARPA Young Faculty Award, 2011 College of Engineering Martin W. Essigmann Outstanding Teaching Award, and 2014 College of Engineering Faculty Fellow Award. He has also been actively involved in ASME Dynamic Systems and Control (DSC) Division, taking editorial duties in division newsletter and recently in division-led ASME DSC Magazine. His scholarly activities include publication of 67 journal articles and 95 peer-reviewed conference papers, as well as 10 book chapters and additional 32 conference presentations including invited session talks. His research has been funded primarily by US National Science Foundation and DARPA. He (co-)edited four book volumes with Springer, each with a collection of invited chapters totaling around 400 pages (2009, 2012, 2014, 2019), total of which received over 150,000 chapter downloads to date according to Springer. His Google Scholar h index is 31.

Sipahi has been actively involved as associate editor, associate editor at large, publicity chair, finance chair, exhibits/sponsors chair, outreach chair, program committee member, session chair/co-chair in many conferences organized by ASME, IEEE, and IFAC, including Editor of the Conference Editorial Board of the ASME Dynamic Systems and Control Conference (2018-2019) and the 2012 IFAC Workshop on Time Delay Systems, which he co-organized at Northeastern University, and of which he was the Program Editor. He is also the co-creator of e-delay newsletter together with Prof. Niculescu. He was the lead organizer of three one-full-day educational workshops with Professors Hitay Ozbay, Silviu-Iulian Niculescu, Wim Michiels, Dimitri Breda, and Fatihcan M. Atay in the field of Time Delay Systems at three major control systems conferences (2013, 2014 European Control Conference, and 2013 IEEE Conference on Decision and Control) as well as the sole organizer of a similar workshop held preceding the ASME Dynamic Systems and Control Conference in 2015. He is the lead author of the article entitled Stability and Stabilization of Systems with Time Delay, Limitations and Opportunities that was published in 2011 in IEEE Control Systems Magazine, with S.-I. Niculescu, C.T. Abdallah, W. Michiels and K. Gu as co-authors; the author of the book entitled Mastering Frequency Domain Techniques for the Stability Analysis of LTI Time Delay Systems (2019, Society of Industrial and Applied Mathematics); and co-author in an article in Nature Human Behaviour (2019).

Sipahi is a Fellow of ASME since 2014 and was elevated to IEEE Senior member grade in 2016. He currently serves as Associate Editor for Automatica.

Education

  • PhD (2005), Mechanical Engineering,
    University of Connecticut
  • MSc (2002), Mechanical Engineering,
    University of Connecticut
  • BSc (2000), Mechanical Engineering,
    Istanbul Technical University

Honors & Awards

  • 2017 Associate Editor, Automatica
  • 2016 IEEE Senior Member
  • 2015 ASME Dynamic Systems and Control Division Young Investigator Award
  • 2014 COE Faculty Fellow
  • 2014 ASME Fellow
  • 2011 DARPA Young Faculty Award.
  • 2011 Martin W. Essigmann Outstanding Teaching Award of the College of Engineering, Northeastern University.
  • 2011 Nominated for the Excellence for Teaching Award of Northeastern University.
  • Lead author of the review article published and featured as cover in IEEE Control Systems Magazine February 2011 issue.
  • 2005 Chateaubriand Scholarship to conduct post-doctoral research in France, awarded by the French Government.
  • 2003 Best Master’s Thesis Award of School of Engineering, University of Connecticut.
  • 2002 Best Student Paper Award from Dynamic Systems and Control Division at ASME-IMECE Conference, New Orleans, LA.

Teaching Interests

  • ME 3460 Robot Dynamics and Control
  • ME 4550 Mechanical Engineering Design
  • ME 4555 System Analysis and Control
  • ME 5659 Control Systems Engineering
  • ME 5245 Mechatronics
  • Time Delay Systems, Stability and Control (graduate level)
  • HONR 3310 Introduction to System Dynamics (Honors Program)
  • MEIE 4701, 4702: ME Capstone (senior design)

Professional Affiliations

  • American Society of Mechanical Engineers International
  • Institute of Electrical and Electronics Engineers

Research Overview

Control systems and mechatronics; stability analysis and control synthesis of dynamical systems with delays; interplay between stability, delays, and graphs; control-systems-aided human-machine systems; engineering education research; disability research; systems biology

Complex Dynamic Systems and Control Laboratory

The main area of our research is in control systems and mechatronics, with particular focus on

(i) stability analysis and control synthesis of dynamical systems with delays

(ii) interplay between stability, delays, and graphs

(iii) control-systems-aided human-machine systems

(iv) engineering education research

Complex Dynamic Systems and Control Laboratory

Selected Research Projects

Selected Publications

Most recent journal publications:

  • Ramirez, A., Sipahi, R., Méndez-Barrios, C.F., Leyva, J., 2021, Derivative-Dependent Control of a Fuel Cell System with a Safe Implementation: An Artificial Delay Approach, accepted, Journal of Systems and Control Engineering, Special Issue CoDIT 2020, available online May 2021. https://doi.org/10.1177/09596518211012784
  • Tzounas, G., Sipahi, R., Milano, F., 2021, Damping Power System Electromechanical Oscillations Using Time Delays, IEEE Transactions on Circuits and Systems I, 68(6), 2725-2735. 10.1109/TCSI.2021.3062970
  • Ramirez, A., Breda, D., Sipahi, R., 2021, A scalable approach to compute delay margin of a class of neutral-type time delay systems, SIAM Control and Optimization, 59(2), 805-824.
  • Lehotzky, D., Sipahi, R., Zupanc, G.K.H., 2021, Cellular automata modeling suggests symmetric stem-cell division, cell death, and cell drift as key mechanisms driving adult spinal cord growth in teleost fish, Journal of Theoretical Biology, 509, 110474 available online (Sep 2020).
  • Wang, D., Sipahi, R., 2021, Stability of a Large-Scale Connected Vehicle Network under Communication, Sensor, and Human Reaction Delays, IEEE Transactions on Intelligent Transportation Systems, available online.
  • Sipahi, R., Porfiri, M., 2020, Improving on Transfer Entropy-based Network Reconstruction using Time-delays, Chaos: An Interdisciplinary Journal of Nonlinear Science, available online https://doi.org/10.1063/1.5115510.
  • Sohn, W. J., Sipahi, R., Sanger, T.D., Sternad, D., 2019, Portable Motion-Analysis Device for Upper-Limb Research, Assessment and Rehabilitation in Non-Laboratory Settings, available online, IEEE Journal of Translational Engineering in Health & Medicine, 7, 2800314.
  • Porfiri, M., Sattanapalle, R.R., Nakayama, S., Macinko, J., Sipahi, R., 2019, Firearm Acquisition in the Aftermath of a Mass Shooting: the Role of Media Coverage, 3, 913-921, Nature Human Behaviour, cover of the September issue.
  • Ramirez, A., Sipahi, R., Mondie, S., Garrido, R., 2019, Fast Consensus in a Large-Scale Multi-Agent System with Directed Graphs Using Time-Delayed Measurements, Philosophical Transactions A, 377, 20180130.
  • Zupanc, G.K.H., Zupanc, F.B., Sipahi, R., 2019, Stochastic Cellular Automata Model of Tumorous Neurosphere Growth: Roles of Developmental Maturity and Cell Death, Journal of Theoretical Biology, 467, 100-110.
student sitting on wall at Northeastern University

Spotlight Story

Nov 06, 2020

Making the Shoe Fit

In many ways, mechanical engineers are like superheroes. They look like you or me out on the street, but when they get to work they can solve almost any problem, big or small. Gabrielle Whittle, E’21, a senior majoring in mechanical engineering at Northeastern, comes by her interest in mechanical engineering naturally. Her father is […]

Rifat Sipahi

Faculty

Apr 21, 2020

Patent for Validating MRAC for Human-in-the-Loop Control Systems

MIE Professor Rifat Sipahi was awarded a patent for “Validating and computing stability limits of human-in-the-loop adaptive control systems”.

cover of Nature Human Behavior journal

Faculty

Sep 16, 2019

Media Coverage and Firearm Acquisition in the Aftermath of a Mass Shooting

The article entitled “Media coverage and firearm acquisition in the aftermath of a mass shooting” and authored by Porfiri (NYU), Sattanapalle (NYU), Nakayama (NYU), Macinko (UCLA) and MIE Professor Rifar Sipahi was featured on the cover of Nature Human Behaviour.

Faculty

Jun 24, 2019

Linking Media Coverage of Gun Control to Gun Purchases

MIE Professor Rifat Sipahi and co-authors from NYU and UCLA published the article “Media coverage and firearm acquisition in the aftermath of a mass shooting” in Nature Human Behaviour, which was also featured in the NYU article “Mathematics Ties Media Coverage of Gun Control to Upticks in Gun Purchases”.

Faculty

May 23, 2019

Sipahi's book on Time Delay Systems published

MIE Professor Rifat Sipahi published “Mastering Frequency Domain Techniques for the Stability Analysis of LTI Time Delay Systems” with the Society of Industrial and Applied Mathematics (SIAM).

Faculty

Feb 26, 2019

Understanding Tumor Regrowth

MIE Professor Rifat Sipahi is working with biology professor Gunther Zupanc to determine why certain cancer tumors grow back. This might be why some tumors grow back aggressively after cancer treatments Many of the commonly used cancer treatments, such as radiation or chemotherapy, kill tumor cells. But sometimes, after those cells have died and been […]

Faculty

Jan 17, 2018

Creating Better Communication Between Robots

MIE Associate Professor Rifat Sipahi is designing algorithms to allow robots, such as drones and self-driving cars, to connect better with other robots despite communication delays. Source: News @ Northeastern Fully autonomous robots, such as drones and self-driving cars, are no longer a thing of the future. But hurdles remain before they completely integrate into […]

Jun 28, 2017

Young Scholar Program Provides Experience-Based Learning for Future Scientists and Engineers

The Center for STEM Education kicked off its 2017 Young Scholars Program on June 26, 2017, with 26 budding scientists and engineers from high schools at a variety of cities and towns in the Greater Boston area.

Faculty

Dec 09, 2016

Sipahi Elevated to Senior Member of IEEE

MIE Associate Professor Rifat Sipahi has achieved the rank of Senior Member of the IEEE, an honor bestowed only to those who have made significant contributions to the profession. Only about 8% of over 400,000 members attain this membership grade.

Oct 23, 2015

Sipahi Receives ASME/DSCD Young Investigator Award

MIE Associate Professor Rifat Sipahi was selected to receive the 2015 ASME Dynamic Systems and Control Division Outstanding Young Investigator Award.

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