@inproceedings{AltayButenwegKlinkel2013,
  author    = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven},
  title     = {Vibration control of slender structures by semi-active tuned liquid column dampers},
  series = {Conference of the ASCE Engineering Mechanics Institute , Evanston, IL , USA , EMI 2013 , 2013-08-04 - 2013-08-07},
  booktitle = {Conference of the ASCE Engineering Mechanics Institute , Evanston, IL , USA , EMI 2013 , 2013-08-04 - 2013-08-07},
  pages     = {1 Seite},
  year      = {2013},
  language  = {en}
}
@inproceedings{AltayButenwegKlinkel2014,
  author    = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven},
  title     = {Vibration mitigation of wind turbine towers by a new semiactive Tuned Liquid Column Damper},
  series = {6. Word Congress on Structural Control and Monitoring, 15 - 17 July, 2014 Barcelona,Spain},
  booktitle = {6. Word Congress on Structural Control and Monitoring, 15 - 17 July, 2014 Barcelona,Spain},
  year      = {2014},
  language  = {en}
}
@inproceedings{AltayButenwegKlinkeletal.2014,
  author    = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven and Taddei, Francesca},
  title     = {Vibration mitigation of wind turbine towers by tuned liquid column dampers},
  series = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)},
  booktitle = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)},
  address   = {Porto},
  organization    = {European Conference on Structural Dynamics, EURODYN <9, 2014, Porto>},
  isbn      = {978-972-752-165-4},
  pages     = {1531 -- 1538},
  year      = {2014},
  language  = {en}
}
@article{AltayButenwegTaddei2013,
  author    = {Altay, Okyay and Butenweg, Christoph and Taddei, Francesca},
  title     = {Effektivit{\"a}t von Schwingungsd{\"a}mpfern bei Windenergieanlagen},
  series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt},
  volume    = {Band 88},
  journal   = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt},
  number    = {Heft 10},
  publisher = {VDI Fachmedien},
  address   = {D{\"u}sseldorf},
  issn      = {1436-4867 (E-Journal); 0005-6650 (Print)},
  pages     = {S11 -- S17},
  year      = {2013},
  language  = {de}
}
@inproceedings{AltayKlinkelButenweg2014,
  author    = {Altay, Okyay and Klinkel, Sven and Butenweg, Christoph},
  title     = {Intelligente semiaktive D{\"a}mpfungssysteme zur Reduktion periodischer und stochastischer Bauwerksschwingungen},
  series = {Berichte der Fachtagung Baustatik - Baupraxis 12 am 24. und 25. Februar 2014 an der Technischen Universit{\"a}t M{\"u}nchen / Hrsg. Kai-Uwe Bletzinger ...},
  booktitle = {Berichte der Fachtagung Baustatik - Baupraxis 12 am 24. und 25. Februar 2014 an der Technischen Universit{\"a}t M{\"u}nchen / Hrsg. Kai-Uwe Bletzinger ...},
  publisher = {Lehrstuhl f{\"u}r Statik, Techn. Univ. M{\"u}nchen},
  address   = {M{\"u}nchen},
  organization    = {Fachtagung Baustatik - Baupraxis <12, 2014, M{\"u}nchen>},
  isbn      = {978-3-00-041256-1},
  pages     = {397 -- 404},
  year      = {2014},
  language  = {de}
}
@incollection{AltayTaddeiButenwegetal.2014,
  author    = {Altay, Okyay and Taddei, Francesca and Butenweg, Christoph and Klinkel, Sven},
  title     = {Vibration mitigation of wind turbine towers with tuned mass dampers},
  series = {Wind turbine control and monitoring. (Advances in industrial control)},
  booktitle = {Wind turbine control and monitoring. (Advances in industrial control)},
  publisher = {Springer},
  address   = {Cham ; Heidelberg ; New York ; Dordrecht ; London},
  isbn      = {978-3-319-08412-1 (Print) ; 978-3-319-08413-8 (E-Book)},
  doi       = {10.1007/978-3-319-08413-8_12},
  pages     = {337 -- 373},
  year      = {2014},
  abstract  = {Because of its minor environmental impact, electricity generation using wind power is getting remarkable. The further growth of the wind industry depends on technological solutions to the challenges in production and construction of the turbines. Wind turbine tower vibrations, which limit power generation efficiency and cause fatigue problems with high maintenance costs, count as one of the main structural difficulties in the wind energy sector. To mitigate tower vibrations auxiliary measures are necessary. The effectiveness of tuned mass damper is verified by means of a numeric study on a 5 MW onshore reference wind turbine. Hereby, also seismic-induced vibrations and soil-structure interaction are considered. Acquired results show that tuned mass damper can effectively reduce resonant tower vibrations and improve the fatigue life of wind turbines. This chapter is also concerned with tuned liquid column damper and a semiactive application of it. Due to its geometric versatility and low prime costs, tuned liquid column dampers are a good alternative to other damping measures, in particular for slender structures like wind turbines.},
  language  = {en}
}
@book{AltensenAltSchumny1983,
  author    = {Altensen, Frank and Alt, Helmut and Schumny, Harald},
  title     = {Kryptologie (HP-41 C/CV) : Chiffrierung, Textverschl{\"u}sselung, Datenschutz, Morsealphabet (Vieweg-Programmbibliothek Taschenrechner ; 7) / Helmut Alt ; Harald Schumny [Hrsg.]},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {3-528-04256-7},
  pages     = {V, 92 S.},
  year      = {1983},
  language  = {de}
}
@book{Altherr2016,
  author    = {Altherr, Lena},
  title     = {Algorithmic System Design under Consideration of Dynamic Processes},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {978-3-8440-4848-3},
  pages     = {94},
  year      = {2016},
  abstract  = {Nach Stand von Wissenschaft und Technik werden Komponenten hinsichtlich ihrer Eigenschaften, wie Lebensdauer oder Energieeffizienz, optimiert. Allerdings k{\"o}nnen selbst hervorragende Komponenten zu ineffizienten oder instabilen Systemen f{\"u}hren, wenn ihr Zusammenspiel nur unzureichend ber{\"u}cksichtigt wird. Eine Systembetrachtung schafft ein gr{\"o}ßeres Optimierungspotential - dem erh{\"o}hten Potential steht jedoch auch ein erh{\"o}hter Komplexit{\"a}tsgrad gegen{\"u}ber. Die vorliegende Arbeit ist im Rahmen des Sonderforschungsbereichs 805 entstanden, dessen Ziel die Beherrschung von Unsicherheit in Systemen des Maschinenbaus ist. Die Arbeit zeigt anhand eines realen Systems aus dem Bereich der Hydraulik, wie Unsicherheit in der Entwicklungsphase beherrscht werden kann. Hierbei ist neu, dass die durch den sp{\"a}teren Betrieb zu erwartende Systemdegradation eines jeden m{\"o}glichen Systemvorschlags antizipiert werden kann. Dadurch k{\"o}nnen Betriebs- und Wartungskosten vorausgesagt und minimiert werden und durch eine optimale Betriebs- und Wartungsstrategie die Verf{\"u}gbarkeit des Systems garantiert werden. Wesentliche Fragen bei der optimalen Auslegung des betrachteten hydrostatischen Getriebes sind dessen physikalische Modellierung, die Darstellung des Optimierungsproblems als gemischt-ganzzahliges lineares Programm, und dessen algorithmische Behandlung zur L{\"o}sungsfindung. Hierzu werden Heuristiken zum schnelleren Auffinden sinnvoller Systemtopologien vorgestellt und mittels mathematischer Dekomposition eine Bewertung des dynamischen Verschleiß- und Wartungsverlaufs m{\"o}glicher Systemvorschl{\"a}ge vorgenommen. Die Arbeit stellt die Optimierung technischer Systeme an der Schnittstelle von Mathematik, Informatik und Ingenieurwesen sowohl gr{\"u}ndlich als auch anschaulich und nachvollziehbar dar.},
  language  = {en}
}
@article{AltherrBroetzDietrichetal.2018,
  author    = {Altherr, Lena and Br{\"o}tz, Nicolas and Dietrich, Ingo and Gally, Tristan and Geßner, Felix and Kloberdanz, Hermann and Leise, Philipp and Pelz, Peter Franz and Schlemmer, Pia and Schmitt, Andreas},
  title     = {Resilience in mechanical engineering - a concept for controlling uncertainty during design, production and usage phase of load-carrying structures},
  series = {Applied Mechanics and Materials},
  volume    = {885},
  journal   = {Applied Mechanics and Materials},
  publisher = {Trans Tech Publications},
  address   = {B{\"a}ch},
  isbn      = {1662-7482},
  doi       = {10.4028/www.scientific.net/AMM.885.187},
  pages     = {187 -- 198},
  year      = {2018},
  abstract  = {Resilience as a concept has found its way into different disciplines to describe the ability of an individual or system to withstand and adapt to changes in its environment. In this paper, we provide an overview of the concept in different communities and extend it to the area of mechanical engineering. Furthermore, we present metrics to measure resilience in technical systems and illustrate them by applying them to load-carrying structures. By giving application examples from the Collaborative Research Centre (CRC) 805, we show how the concept of resilience can be used to control uncertainty during different stages of product life.},
  language  = {en}
}
@inproceedings{AltherrConzenElsenetal.2023,
  author    = {Altherr, Lena and Conzen, Max and Elsen, Ingo and Frauenrath, Tobias and Lyrmann, Andreas},
  title     = {Sensor retrofitting of existing buildings in an interdisciplinary teaching project at university level},
  series = {Tagungsband AALE 2023 : mit Automatisierung gegen den Klimawandel},
  booktitle = {Tagungsband AALE 2023 : mit Automatisierung gegen den Klimawandel},
  editor    = {Reiff-Stephan, J{\"o}rg and J{\"a}kel, Jens and Schwarz, Andr{\´e}},
  publisher = {le-tex publishing services GmbH},
  address   = {Leipzig},
  isbn      = {978-3-910103-01-6},
  doi       = {10.33968/2023.04},
  pages     = {31 -- 40},
  year      = {2023},
  abstract  = {Existing residential buildings have an average lifetime of 100 years. Many of these buildings will exist for at least another 50 years. To increase the efficiency of these buildings while keeping costs at reasonable rates, they can be retrofitted with sensors that deliver information to central control units for heating, ventilation and electricity. This retrofitting process should happen with minimal intervention into existing infrastructure and requires new approaches for sensor design and data transmission. At FH Aachen University of Applied Sciences, students of different disciplines work together to learn how to design, build, deploy and operate such sensors. The presented teaching project already created a low power design for a combined CO2, temperature and humidity measurement device that can be easily integrated into most home automation systems},
  language  = {en}
}