(of an oscillating system) having unrestricted motion; not damped
2.
not repressed, discouraged, or subdued; undiminished
undamped in American English
(ʌnˈdæmpt)
adjective
not damped
; specif.,
a.
not disheartened or discouraged
b. Electricity
not decreasing in amplitude
undamped in American English
(unˈdæmpt)
adjective
1.
not damped or dampened; undiminished, as in energy, vigor, etc
undamped spirits
2. Physics(of an oscillation)
having constant or increasing amplitude
Word origin
[1735–45; un-1 + damp + -ed2]This word is first recorded in the period 1735–45. Other words that entered Englishat around the same time include: boxer, butternut, loggia, tandem, washboardun- is a prefix meaning “not,” freely used as an English formative, giving negative oropposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able), and less freely used in certain other nouns (unrest; unemployment); -ed is a suffix forming the past participle of weak verbs (he had crossed the river), and of participial adjectives indicating a condition or quality resulting fromthe action of the verb (inflated balloons). Other words that use the affix -ed include: classified, connected, frosted, sheltered, unattended
Examples of 'undamped' in a sentence
undamped
The damper head sometimes turns round on its wire, leaving one or two strings undamped.
J. Cree Fischer Piano Tuning (1907). Retrieved in 2019 from Project Gutenberg (https://www.gutenberg.org/ebooks/)
Then the undamped natural mode was studied.
Zhong Wang, Lei Zhang, Yuan-Qing Luo, Chang-Zheng Chen 2017, 'Dynamic Model of Spur Gear Pair with Modulation Internal Excitation', International Journal of Rotating Machineryhttp://dx.doi.org/10.1155/2017/1264904. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Undamped transverse-only as well as two-degrees-of-freedom oscillations are considered.
K. Sourav, S. Sen 2017, 'On the Response of a Freely Vibrating Thick Elliptic Cylinder of Low Mass Ratio',Journal of Applied Fluid Mechanicshttp://jafmonline.net/JournalArchive/download?file_ID=42505&issue_ID=240. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Then, the undamped and damping forced vibration response were studied.
Congfang Hu, Cheng'gong Shen, Ruitao Peng, Rui Chen 2017, 'Dynamics analysis of the pitch control reducer for MW wind turbine', Journal of Vibroengineeringhttps://www.jvejournals.com/article/19146. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Both undamped and damped conditions were considered.
Mya Nan Aye, Akira Kasai, Mitsuhiro Shigeishi 2018, 'An Investigation of Damage Mechanism Induced by Earthquake in a Plate Girder BridgeBased on Seismic Response Analysis: Case Study of Tawarayama Bridge under the 2016Kumamoto Earthquake', Advances in Civil Engineeringhttp://dx.doi.org/10.1155/2018/9293623. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The instantaneous characteristics of nonlinear torsion pendulum are analyzed by instantaneous undamped natural frequency and instantaneous damping coefficient.
Yan Zhao, Baofeng Zhang, Fangfang Han, Huan Tian, Xiao Yu, Junchao Zhu 2018, 'Instantaneous Characteristics of Nonlinear Torsion Pendulum and Its Application inParameter Estimation of Nonlinear System', Mathematical Problems in Engineeringhttp://dx.doi.org/10.1155/2018/7858403. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The theoretical results are accompanied by graphical representations illustrating the behavior of the damped and undamped oscillators.
C. Fabry 2000, 'Behavior of forced asymmetric oscillators at resonance', Electronic Journal of Differential Equationshttp://ejde.math.txstate.edu/Volumes/2000/74/abstr.html. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The system damps most of the oscillations, but a few undamped oscillations may remainwhich may lead to system collapse.
Papia Ray 2017, 'Power system low frequency oscillation mode estimation using wide area measurementsystems', Engineering Science and Technology, an International Journalhttp://www.sciencedirect.com/science/article/pii/S2215098616305146. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The free undamped infinitesimal transverse vibrations of a thin straight beam are modelled by a forth-order differential equation.
Kazem Ghanbari 2005, 'On the isospectral beams', Electronic Journal of Differential Equationshttp://ejde.math.txstate.edu/conf-proc/12/g1/abstr.html. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)