Browsing AURA by Author "Ruderman, Michael"
Now showing items 1-20 of 59
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Adaptive time delay based control of non-collocated oscillatory systems
Ruderman, Michael (Chapter, 2024)Time delay based control, recently proposed for non-collocated fourth-order systems, has several advantages over an observer-based state-feedback compensation of the low-damped oscillations in output. In this paper, we ... -
Analysis of relay-based feedback compensation of Coulomb friction
Ruderman, Michael; Fridman, Leonid M. (Peer reviewed; Journal article, 2022)Standard problem of one-degree-of-freedom mechanical systems with Coulomb friction is revised for a relay-based feedback stabilization. It is recalled that a system with Coulomb friction is asymptotically stabilizable via ... -
Backlash Identification in Two-Mass Systems by Delayed Relay Feedback
Ruderman, Michael; Yamada, Shota; Fujimoto, Hiroshi (Journal article; Peer reviewed, 2019) -
Comparison of Fractional-Order and Integer-Order H-infinity Control of a Non-Collocated Two-Mass Oscillator
Voss, Benjamin; Ruderman, Michael; Weise, Christoph; Reger, Johann (Journal article, 2022)We consider the robust control of a two-mass oscillator with a dominant input delay. Our aim is to compare a fractional-order tuning approach including the partial compensation of non-minimum phase zeros with a classical ... -
Convergent dynamics of optimal nonlinear damping control
Ruderman, Michael (Peer reviewed; Journal article, 2021)Following the Demidovich’s concept and definition of convergent systems, we analyze the optimal nonlinear damping control which was recently proposed for the second-order systems. Targeting the problem of servo-regulation, ... -
Design and Analysis of non-linear Circuit with Tunnel Diode for Hybrid Control Systems
Pasolli, Philipp Thomas; Ruderman, Michael (Chapter; Peer reviewed, 2018) -
Discrete-time adaptive hysteresis filter for parallel computing and recursive identification of Preisach model
Ruderman, Michael; Rachinskii, Dmitrii (Chapter; Peer reviewed, 2018) -
Dissipation in suspension system augmented by piezoelectric stack: port-Hamiltonian approach
Tavares, Rafael Pinto; Ruderman, Michael (Chapter, 2020)Analysis of damping in semi-active and active suspension systems is prerequisite for an advanced control and, eventually, energy harvesting functions. This paper addresses the damping in suspension system augmented by the ... -
Dynamics of inertial pair coupled via frictional interface
Ruderman, Michael; Zagvozdkin, Andrei; Rachinskii, Dmitrii (Peer reviewed; Journal article, 2022)Understanding the dynamics of two inertial bodies coupled via a friction interface is essential for a wide range of systems and motion control applications. Coupling terms within the dynamics of an inertial pair connected ... -
Energy dissipation and hysteresis cycles in pre-sliding transients of kinetic friction
Ruderman, Michael (Peer reviewed; Journal article, 2023)The problem of transient hysteresis cycles induced by the pre-sliding kinetic friction is relevant for analyzing the system dynamics, e.g., of micro- and nano-positioning instruments and devices and their controlled ... -
Energy harvesting using piezoelectric transducers for suspension systems
Tavares, Rafael Pinto; Ruderman, Michael (Journal article; Peer reviewed, 2020) -
Estimating Sway Angle of Pendulum System Using Hybrid State Observer Incorporating Continuous and Discrete Sensing Signals
Ano, Shuta; Seki, Kenta; Ruderman, Michael; Iwasaki, Makoto (Peer reviewed; Journal article, 2020)This paper presents the design of a hybrid state observer that estimates the sway angle in trolley systems with a pendulum, such as overhead cranes. In the system, sway angle signals detected by angular sensors are generally ... -
Experimental Evaluation of Homogeneous Differentiators Applied to Hydraulic Stroke with Measurement Noise and Acceleration Disturbance
Calmbach, Benjamin; Ruderman, Michael; Reger, Johann (Chapter, 2024)The design and experimental evaluation of continuous homogeneous differentiators are considered. The differentiator gains follow the high-gain setup with variable gain-scaling parameter L. This parameter results from a ... -
Experimental framework of traveling trolley with swinging load for hybrid motion control
Karimi, Wais; Ruderman, Michael; Seki, Kenta; Iwasaki, Makoto (Chapter; Peer reviewed, 2018) -
A Fractional-Order Control Approach to Ramp Tracking with Memory-Efficient Implementation
Weise, Christoph; Tavares, Rafael Pinto; Wulf, Kai; Ruderman, Michael; Reger, Johann (Chapter, 2020)We investigate the fractional-order (FO) control of arbitrary order LTI systems. We show that, for ramp tracking or input disturbance rejection, it is advantageous to include an FO integrator to the open-loop if we have ... -
Fractional-Order Partial Cancellation of Integer-Order Poles and Zeros
Voss, Benjamin; Weise, Christoph; Ruderman, Michael; Reger, Johann (Chapter, 2022)The key idea of this contribution is the partial compensation of non-minimum phase zeros or unstable poles. Therefore the integer-order zero/pole is split into a product of fractional-order pseudo zeros/poles. The amplitude ... -
Fractional-Order System Identification of Viscoelastic Behavior: A Frequency Domain Based Experimental Study
Kapp, Daniela; Weise, Christoph; Ruderman, Michael; Reger, Johann (Chapter, 2020)In this work, the fractional-order modeling of viscoelastic behavior is investigated based on measurement data in the frequency domain. For the results of two different test setups we apply existing parameter estimation ... -
Frequency-domain experimental setup for mechatronic and suspension system components
Tavares, Rafael Pinto; Ruderman, Michael (Chapter, 2021)This paper presents a frequency-domain experimental setup for modal analysis of mechatronic and suspension system components. Design, instrumentation and dynamic behavior of the one degree-of-freedom (DOF) system, capable ... -
Full- and Reduced-order Model of Hydraulic Cylinder for Motion Control
Ruderman, Michael (Chapter; Peer reviewed, 2017) -
Hybrid modeling and control of mechatronic systems using a piecewise affine dynamics approach
Pasolli, Philipp (Doctoral Dissertation at the University of Agder; no. 273, Doctoral thesis, 2020)This thesis investigates the topic of modeling and control of PWA systems based on two experimental cases of an electrical and hydraulic nature with varying complexity that were also built, instrumented and evaluated. A ...