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    An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure by Ricardo Carvalhal, Vicente Lopes Júnior, Michael J. Brennan

    Published 2007-01-01
    “…In this paper an efficient modal control strategy is described for the active vibration control of a truss structure. …”
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    Article
  3. 263

    Comparative Analysis and Study of an Automobile Transmission Shell and Finished Product by Modal Test by Wu Wenxuan, Ma Weijin, Zhang Jipin, Wang Junyuan

    Published 2016-01-01
    “…Taking the type of automobile transmission shell as a research object,in order to analyze and judge the performance of an automobile transmission shell,the experimental modal analysis of the automobile transmission shell and finished product is carried out by using the experimental modal analysis technique,comparison the results of extracted the parameter of automobile transmission shell and finished product,the results show that,the automobile transmission shell and the finished product corresponding to each other under 1500 Hz,the modal frequency has a small change in a certain frequency band,the modal damping ratio of the finished product is higher than the auto transmission shell,this provides a revised proposal and an important technical support for the following research of automobile transmission shell.…”
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  4. 264
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    A hónap eseményei az EU belügyi együttműködése terén (július-augusztus) by Adrienn Szabó

    Published 2013-09-01
    “… A szerző a 2013. évi július-augusztus hónap eseményeit foglalja össze az EU belügyi együttműködése terén. …”
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    Development and Validation of a Questionnaire to Assess Students’ Perception of Hyflex Learning Modality by Edrian Peter Villanueva, Jayson Caalim

    Published 2024-12-01
    “…The HyFlex learning modality, a response to the need for inclusive and high-quality education, has introduced significant transformations in some aspects of the Philippine education system. …”
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  9. 269

    Contactless Modal Phenomena Based Approach to Detecting, Identifying, and Diagnosing of Electrical Connections by Pavel Orlov, Talgat Gazizov

    Published 2018-01-01
    “…This paper presents a unified description of a new approach for contactless detection, identification, and diagnostics of electrical connections and describes an idea and principles of using modal probing for these tasks. Simulation and experimental results on pulsed signal propagation through flat cables demonstrate the modal decomposition of a pulsed signal, which varies depending on the state of the probed wire. …”
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    Study on Preload of Bolted Connections in Pitch Bearing Based on Vibration Modal Analysis by Hongwei Zhang, Tao Chen, Kangkang Ji, Meng Zhu, Chengwei Ju

    Published 2023-01-01
    “…Hammer modal tests are conducted under various preloading forces. …”
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    Improved Continuous Wavelet Transform for Modal Parameter Identification of Long-Span Bridges by Mingjin Zhang, Xu Huang, Yongle Li, Hao Sun, Jingyu Zhang, Bin Huang

    Published 2020-01-01
    “…Accurate and timely identification of modal parameters of long-span bridges is important for bridge health monitoring and wind tunnel tests. …”
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  14. 274

    Vibrational Modal Frequencies and Shapes of Two-Span Continuous Timber Flooring Systems by Binsheng Zhang, Tony Kilpatrick

    Published 2019-01-01
    “…Based on classic vibrational bending theory on beams, this paper provides comprehensive analytical formulae for dynamic characteristics of two equal span continuous timber flooring systems, including frequency equations, modal frequencies, and modal shapes. Four practical boundary conditions are considered for end supports, including free, sliding, pinned, and fixed boundaries, and a total of sixteen combinations of flooring systems are created. …”
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  15. 275

    ROLLING BEARING FAULT DIAGNOSIS BASED ON VARIATIONAL MODAL DECOMPOSITION AND LFOA-RVM by CHEN Wan

    Published 2018-01-01
    Subjects: “…Variational modal decomposition…”
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  16. 276

    Online Modal Identification of Concrete Dams Using the Subspace Tracking-Based Method by Lin Cheng, Fei Tong, Jie Yang, Dongjian Zheng

    Published 2019-01-01
    “…To investigate the time-varying dynamic characteristics of concrete dams under the excitation of large earthquakes for online structural health monitoring and damage evaluation, an online modal identification procedure based on strong-motion records is proposed. …”
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  17. 277

    Output-Only Modal Analysis Based on Improved Empirical Mode Decomposition Method by Shiqiang Qin, Qiuping Wang, Juntao Kang

    Published 2015-01-01
    “…The output-only modal analysis for bridge structures based on improved empirical mode decomposition (EMD) is investigated in this study. …”
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    Lightweight Threshing Rack under Multisource Excitation Based on Modal Optimization Method by Haotian Zhang, Zhong Tang, Yu Li, Xin Liu, Hui Ren

    Published 2020-01-01
    “…Results showed that the 1st to 6th natural frequency of threshing rack after modal optimization could avoid the excitation frequency of the working part. …”
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