Scientific publications without theses

Results: 829
Created on: Wed, 17 Jul 2024 23:04:53 +0200 in 0.0611 sec


Fiedler, Patrique; Haueisen, Jens; Griebel, Stefan; Fonseca, Carlos; Vaz, Felipe; Zentner, Lena; Zanow, Frank
Rapid, dry multichannel electroencephalography. - In: Scientific & social program, (2014), S. 34-35

Haueisen, Jens; Fiedler, Patrique; Griebel, Stefan; Fonseca, Carlos; Vaz, Felipe; Zentner, Lena; Zanow, Frank
Electroencephalography with dry electrode caps. - In: Scientific & social program, (2014), S. 34

Behn, Carsten;
Modeling the adjustment of receptor cells via adaptive [lambda]-stabilizing control. - In: Journal of Mechatronics, ISSN 2326-2893, Bd. 2 (2014), 4, S. 275-290

This paper deals with the (adaptive) control of a sensory system. It is inspired by biological ideas concerning the behavior of animal receptor cells for the processing of information of the tactile sense. The equations of motion fall into the category of quadratic, finite-dimensional, nonlinearly perturbed, multi-input, multi-output systems (MIMO-systems) of relative degree two. Then, the typical adjustment of the receptor cells to continuing signals (described as perturbations from the environment) is realized via a universal adaptive control strategy, which also allows system parameter uncertainties, i.e., lack of precise knowledge. We present three control strategies, analytical proofs and simulations.



http://dx.doi.org/10.1166/jom.2014.1069
Fiedler, Patrique; Haueisen, Jens; Jannek, Dunja; Griebel, Stefan; Zentner, Lena; Vaz, Filipe; Fonseca, Carlos
Comparison of three types of dry electrodes for electroencephalography. - In: Acta IMEKO, ISSN 2221-870X, Bd. 3 (2014), 3, S. 33-37

https://doi.org/10.21014/acta_imeko.v3i3.94
Fremerey, Max; Köhring, Sebastian; Nassar, Omar; Schöne, Manuel; Weinmeister, Karl; Becker, Felix; Џorџeviâc, Goran; Witte, Hartmut
Design of a phase-shifting double-wheg-module for quadruped robots. - In: Shaping the future by engineering, (2014), insges. 10 S.

http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2014iwk-037:5
Griebel, Stefan; Feierabend, Martin; Bojtos, Attila; Zentner, Lena
Characteristics of a compliant fluid-mechanical actuator for creating a screw motion - comparison of simulation and measurement results. - In: Shaping the future by engineering, (2014), insges. 13 S.

http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2014iwk-009:1
Milojeviâc, Andrija; Linß, Sebastian; Zentner, Lena; Pavloviâc, Nenad T.; Pavloviâc, Nenad D.; Petroviâc, Tomislav; Miloševiâc, Miloš; Tomiâc, Miša
Optimal design of adaptive compliant mechanisms with inherent actuators comparing discrete structures with continuum structures incorporating flexure hinges. - In: Shaping the future by engineering, (2014), insges. 12 S.

http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2014iwk-141:4
Issa, Mirna; Zentner, Lena
Sensor elements made of conductive silicone rubber for a compliant gripper. - In: Shaping the future by engineering, (2014), insges. 9 S.

http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2014iwk-130:9
Issa, Mirna; Hügl, Silke; Rau, Thomas S.; Majdani, Omid; Zentner, Lena
Specific curvature behavior of compliant mechanism with hydraulic activation used for medical instruments or implants. - In: Shaping the future by engineering, (2014), insges. 8 S.

http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2014iwk-129:3

   

... until 2022 from the Technical Mechanics Group

Results: 519
Created on: Wed, 17 Jul 2024 23:04:36 +0200 in 0.0862 sec


Behn, Carsten; Zimmermann, Klaus; Steigenberger, Joachim
Biologically inspired locomotion systems - improved models for friction and adaptive control. - In: Multibody dynamics 2007, (2007), insges. 20 S.

In this paper we consider finite DOF worm-like locomotion systems which contact the ground with Couloumb dry friction. Using both a rough and an improved mathematical friction law the system is shown to belong to a system class that allows adaptive control. Two different controllers for lambda-tracking are presented and used in simulations.



Kolev, Emil; Chirikov, Victor; Behn, Carsten
Reduced method for dynamic equations of motion of a flexible worm in a tube. - In: Proceedings, (2007), Seite VI-33-VI-36

The paper presents an analytical method for derivation of the dynamic equations of motion of a continuous body with distributed parameters. So called reduced method is implemented to a worm motion in a tube. The method neglects less important degrees of freedom of the object. Final results of worm motion, as well as all necessary formulation and explanations are available.



Behn, Carsten;
Adaptive tracking of gaits for worm-like locomotion systems. - In: Proceedings, (2007), Seite VI-29-VI-32

This paper is another contribution to the (adaptive) control of a mechanical system, which is inspired by biological ideas (earthworm as a living prototype). We introduce a certain type of a mathematical model of a worm-like locomotion system (WLLS), sketch the corresponding theory, and present numerical simulations. The investigations are aimed at 1) gaining insight into how such systems move, 2) finding kinematic gaits, which can be tracked dynamically by means of adaptive [lambda]-trackers, and 3) finding hints for implementation as a hardware object (artificial worm).



Behn, Carsten;
Adaptive [lambda]-tracking-control for relative degree two systems with application to bio-inspired sensors. - In: Nonlinear dynamics, ISSN 1573-269X, Bd. 50 (2007), 4, S. 817-828

This paper deals with the (adaptive) control of a sensory system, which is inspired by biological ideas concerning the behaviour of a tactile hair or sensillum. The cells for reception of vibrations adjust their sensibility to a continuing excitement, such that this permanent excitation of the whole system tends to the rest position. Hence, this biological paradigm demonstrates a fundamental principle: adaption. In general, one cannot expect to have complete information about a sophisticated mechanical or biological system, but instead only structural properties (e.g. minimum phase condition, strict relative degree) are known. Therefore, the method of adaptive control is chosen in this paper. The aim is to design a universal adaptive controller, which learns from the behaviour of the system, so automatically adjusts its parameters and achieves a pre-specified control objective. Since we deal with a nonlinearly perturbed multi-input, multi-output system, which is not necessarily autonomous, particular attention is paid to the lambda-tracking control objective. Simple adaptive servomechanisms, which achieve tracking of a given reference signal for any pre-specified accuracy (tracking-error) lambda, are introduced. We stress that the introduced adaptive controllers consist of very simple feedback mechanisms and adaptation rules. These controllers are only based on information about the output of the system - no knowledge of system parameters is required.



https://doi.org/10.1007/s11071-007-9227-0
Gerlach, Erik; Zimmermann, Klaus; Oberthür, Siegfried; Tröbs, Anita
Simulating the dynamics of nanopositioning and nanomeasuring machines using methods of multi-body system dynamics. - In: Book of Abstracts, (2007), S. 77

Gerlach, Erik; Zimmermann, Klaus; Oberthür, Siegfried; Tröbs, Anita
Simulating the dynamics of nanopositioning and nanomeasuring machines using methods of multi-body system dynamics. - In: Full papers, (2007), insges. 6 S.

Jatsun, Sergey F.; Bolotnik, Nikolai N.; Zimmermann, Klaus; Zeidis, Igor
Modeling of motion of vibrating robots. - In: Twelfth World Congress in Mechanism and Machine Science, (2007), insges. 6 S.

Franitza, Daniel;
Theorie zur Modellbildung und Simulation räumlicher nichtlinear verformbarer Mechanismen in konvektiver Metrik. - 116, 31 S. Ilmenau : Techn. Univ., Habil.-Schr., 2007

Tröbs, Anita; Gerlach, Erik; Oberthür, Siegfried; Zimmermann, Klaus; Zeidis, Igor
Simulation einer Bewegungseinheit mit hybriden Modellelementen. - In: Mechatronik 2007, Innovative Produktentwicklung, (2007), S. 751-758