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Rifat Sipahi

2010

Stability

Articles 1 - 6 of 6

Full-Text Articles in Systems Engineering

Stability Analysis Of A High Dimensional Supply Network With 5 Delays, Rifat Sipahi Sep 2010

Stability Analysis Of A High Dimensional Supply Network With 5 Delays, Rifat Sipahi

Rifat Sipahi

No abstract provided.


Stability Analysis Of A Lti-Tds Dynamics With Four (4) Independent Delays, Rifat Sipahi Sep 2010

Stability Analysis Of A Lti-Tds Dynamics With Four (4) Independent Delays, Rifat Sipahi

Rifat Sipahi

No abstract provided.


Transportation Delays In Supply Networks: Stability Analysis & System Design, Rifat Sipahi, Stefan Lanmer, Silvia-Julian Niculescu, Dirk Helbing Sep 2010

Transportation Delays In Supply Networks: Stability Analysis & System Design, Rifat Sipahi, Stefan Lanmer, Silvia-Julian Niculescu, Dirk Helbing

Rifat Sipahi

No abstract provided.


Stability Of A Linear Time Invariant Dynamics With 3 Independent Delays, Rifat Sipahi Sep 2010

Stability Of A Linear Time Invariant Dynamics With 3 Independent Delays, Rifat Sipahi

Rifat Sipahi

No abstract provided.


Delay Modeling In Supply Network Dynamics: Performance, Synchronization, Stability, Rifat Sipahi Sep 2010

Delay Modeling In Supply Network Dynamics: Performance, Synchronization, Stability, Rifat Sipahi

Rifat Sipahi

Recent research results in Industrial Engineering and Business disciplines specifically emphasize the critical role of delays in the functionality of supply networks. Delays are inevitable and pervasive; they arise due to the time needed for material deliveries, information flow and human perception towards adjusting to new decisions. Delays are endangering as they contaminate decision-making which ultimately leads to poor performance, synchronization problems and fluctuating inventory levels resulting in major economical losses. It is critical to state that inventory regulation and synchronization in supply networks even without delays is an open problem today due to large scale of the network, nonlinearities, …


An Efficient Numerical Approach For The Stability Analysis Of A Class Of Lti Systems With Arbitrary Number Of Delays, Rifat Sipahi Sep 2010

An Efficient Numerical Approach For The Stability Analysis Of A Class Of Lti Systems With Arbitrary Number Of Delays, Rifat Sipahi

Rifat Sipahi

Abstract: A practical and numerically efficient algorithm is presented for determining the stability robustness map of a general class of higher order linear time invariant (LTI) systems in the parametric space of arbitrary number of independent delays. The stability of this class of dynamics is of particular interest in low-gain design and multi-agent control problems. The backbone of the new algorithm is inspired by a scaled frequency sweeping technique which enables the exhaustive determination of stability switching hypersurfaces in the parametric space of delays, without requiring nested loops. Two case studies are presented in order to demonstrate the strength of …