Results 11 to 20 of about 123 (99)
A Novel Method for Identifying Tool–Holder Interface Dynamics Based on Receptance Coupling
MachinesThe structural dynamics of a machine tool play a significant role in chatter occurrence, which significantly deteriorates the metal-cutting performance.
Dingtang Zhao +4 more
doaj +2 more sources
Earthquake Engineering &Structural Dynamics, Volume 52, Issue 14, Page 4708-4732, November 2023., 2023 Abstract Connecting a flexible supporting element to an inerter arranged in parallel with a viscous element yields a tuned‐mass damper‐like system, designated as a tuned viscous mass damper (TVMD). The advantage of a TVMD is that it exploits the flexibility of the supporting member, which is usually considered to compromise the energy‐dissipating ...
Jianfei Kang, Kohju Ikago
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Structural Control and Health Monitoring, Volume 2023, Issue 1, 2023., 2023 Operational modal analysis (OMA) enables the identification of modal characteristics under operational loads and conditions. Traditional frequency‐domain methods cannot directly capture modal changes over time, while existing time‐frequency representations are not sufficiently interpretable due to spurious modes and implicit parameter design.
Yuanchen Zeng +6 more
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Shock and Vibration, Volume 2023, Issue 1, 2023., 2023 Regarding the vib‐acoustic performance of internal coupled structures, basically all relevant studies have been confined to the classic form of connections. In this investigation, the boundary and internal elastic constraint matrices of the coupled structure are established, the vibration and sound calculation model of the coupled structure is then ...
Yonggan Sun, Yong Xiao, Xiang Liu
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Nonlinear Dynamic Responses of a Rotor‐Bearing System with Eccentric Squeeze Film Dampers
International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 A squeeze film damper (SFD) is a commonly used component in aeroengine support structures. However, eccentric SFDs are often employed in practical applications. Existing research in this field has mainly focused on simple rotor models and frequency‐domain solution techniques.
Jiaqi Han +5 more
wiley +1 more source
Suppressing Milling Chatter of Thin‐Walled Parts by Eddy Current Dampers
Shock and Vibration, Volume 2023, Issue 1, 2023., 2023 Machining vibrations often occur when working with thin‐walled workpieces. One effective method to mitigate these vibrations is by using a damper, which can enhance machining accuracy, surface finish, and tool life. However, traditional contact dampers have a drawback in that they require direct contact with the workpiece, leading to friction, wear ...
Junming Hou +3 more
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Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 The use of slab tracks in lieu of ballast tracks has introduced new dimensions in track dynamics in high‐speed railways. To improve the performance of slab tracks under dynamic frequency responses caused by loads on the Shinkansen railway, the present study aimed to investigate the effect of mechanical properties of track components, including the ...
Majid Gholizadeh +3 more
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Interpolation‐Based Modeling Methodology for Efficient Aeroelastic Control of a Folding Wing
International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021 The aeroelastic model of a folding wing varies with different configurations, so it actually represents a parameter‐varying system. Firstly, a new approach based on interpolation of local models is proposed to generate the linear parameter‐varying model of a folding wing.
Chengyu Yue, Yonghui Zhao, Erdal Kayacan
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Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021 Due to material multiplicity, rigid‐flexible hybrid and environmental variations, and so forth, the properties of the tracks will be inevitably changed due to the cyclic loads temporally and spatially. In this paper, a theoretical study is conducted to clarify the influence of the longitudinal inhomogeneity of track stiffness on system responses and ...
Wen Bai, Lei Xu, Timothy O. Olawumi
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Discrete Dynamics in Nature and Society, Volume 2021, Issue 1, 2021., 2021 Urban rail corrugation on curved tracks with small radii causes strong howling during operation, which has been bothering subway operating companies for many years. Therefore, revealing its causes and growth is important for the comfort and safety of subway operation. Current studies believe that the occurrence of rail corrugation is largely due to the
Xianxian Yin +3 more
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