Spatial Information in Autonomous Modal Parameter Estimation [PDF]
Shock and Vibration, 2014 Recent work with autonomous modal parameter estimation has shown great promise in the quality of the modal parameter estimation results when compared to results from traditional methods by experienced users.
Randall J. Allemang, Allyn W. Phillips
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Methods for modal parameters identification applied to CNC machine tool feed drives [PDF]
The paper presents a critical appraisal of existing methods for the identification of modal parameters (natural frequencies, damping ratios and mode shapes) for CNC machine tool feed drives.
Widiyarto, Muhammad Helmi Nur +3 more
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Characterizing the Dynamic Response of a Chassis Frame in a Heavy-Duty Dump Vehicle based on an Improved Stochastic System Identification [PDF]
, 2015 This paper presents an online method for the assessment of the dynamic performance of the chassis frame in a heavy-duty dump truck based on a novel stochastic subspace identification (SSI) method. It introduces the use of an average correlation signal as
Chen, Zhi +3 more
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Damage monitoring in sandwich beams by modal parameter shifts: a comparative study of burst random and sine dwell vibration testing [PDF]
, 2010 This paper presents an experimental study on the effects of multi-site damage on the vibration response of honeycomb sandwich beams, damaged by two different ways i.e., impact damage and core-only damage simulating damage due to bird or stone impact or ...
Morlier, Joseph +2 more
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Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]
, 2010 This paper presents a basic experimental technique and simplified FE based models for the detection, localization and quantification of impact damage in composite beams around the BVID level.
Niemann, Hanno +7 more
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Modal testing and FE model tuning of a lively footbridge structure [PDF]
, 2006 Despite huge advances in numerical modelling of civil engineering structures in recent decades, finite element models for footbridges should still be developed and used with caution when evaluating modal properties of these structures.
Pavić, Aleksandar +2 more
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Damage localization using experimental modal parameters and topology optimization [PDF]
, 2010 This work focuses on the developement of a damage detection and localization tool using the Topology Optimization feature of MSC.Nastran. This approach is based on the correlation of a local stiness loss and the change in modal parameters due to damages ...
Niemann, Hanno +3 more
core +1 more source
IEEE Access, 2018 In order to facilitate the performance prediction of solar array drive system (SADS) using the scaled-down model approach, a non-proportionally scaled-down model of an SADS is proposed in this paper.
Hong Guo, Tong Zhou, Jinquan Xu
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TMD Damping for Structures with Uncertain Modal Parameters
Applied SciencesThe optimum tuning of the natural frequency and damping ratio of TMDs for structural modal parameters and various optimization criteria are well-known from the literature.
Felix Weber
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Shock and Vibration, 2015 Real-time estimation of modal parameters of time-varying structures can conduct an obvious contribution to some specific applications in structural dynamic area, such as health monitoring, damage detection, and vibration control; the recursive algorithm ...
Si-Da Zhou, Li Liu, Wu Yang, Zhi-Sai Ma
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