Theoretical and experimental studies on the natural frequencies of fastener clips

Xie, Meng; Wei, Kai; Ren, Jiayu; Wang, Ping

doi:10.1007/s11071-022-08113-y

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…Li Yingjun [20] conducted a dynamic analysis of a six-dimension-force piezoelectric test system for large, load-bearing manipulators and obtained the natural frequency of the test system by using the hammering method. Meng Xie [21] conducted a study on the clip's natural frequencies of a DT-III fastener system with and without a train load and were compared and analyzed to study the respective effects of the above two factors, which were verified by the hammer test above.…”

Section: Detailed Simulation Analysis and Experimental Validationmentioning

confidence: 99%

Effect of Additional Mass on Natural Frequencies of Weight-Sensing Structures

Guo,

Zhong,

Zhang

et al. 2023

Sensors

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The phenomena of variability and interference in the natural frequencies of weight-sensing structures applied in complex working conditions must solve the problem of reducing or eliminating resonance under low-frequency vibrations to maximize stability, accuracy and reliability. The influence laws of the additional mass with relevant characteristics on the natural frequencies, which include the components of mass, stiffness and center-of-mass distribution, etc. Firstly, the theoretical formulas of the mathematical model are given based on different characteristics of the weight-sensing structure, and various combinations of additional masses on the weight-sensing structures are adjusted in the X-, Y-, and Z-directions. The key factors to be specifically considered in the theoretical formulas are discussed through simulation analysis and experimental validation. Secondly, the locking strength of the fastening screws of some components was changed, and another component was placed on the experimental platform in the experiment. The results show that the mass, center-of-mass, stiffness distribution and other factors of the additional mass have different effects on the natural frequencies, which are important for the demand for high-precision, high-stability weighing measurement. The results of this research can provide an effective scientific evaluation basis for the reliable prediction of natural frequencies.

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Section: Detailed Simulation Analysis and Experimental Validationmentioning

confidence: 99%

Effect of Additional Mass on Natural Frequencies of Weight-Sensing Structures

Guo,

Zhong,

Zhang

et al. 2023

Sensors

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“…The stiffness and damping of resilient elements are important parameters required for dynamic modelling of vibration isolation or the dynamic simulation of complex structures, e.g. [9], [10]. This paper mainly focuses on the concept of complex stiffness, which is commonly used to describe the dynamic properties of resilient elements, although an alternative is the use of four-pole parameters [11], [12], the measurement of which is restricted to a single direction.…”

Section: Introductionmentioning

confidence: 99%

Measurement, Modeling, and Analysis of the Dynamic Properties of Resilient Elements Used for Vibration Isolation

Sun,

Thompson

2023

Journal of Vibration and Acoustics

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Resilient elements are widely applied for vibration and noise control in many areas of engineering. Their complex dynamic stiffness gives fundamental information to describe their dynamic performance and is required for predicting structure-borne sound and vibration using dynamic modelling. Many laboratory measurement methods have been developed to determine the dynamic properties of resilient elements. This paper presents a review of recent developments of the measurement methods from the perspective of force-displacement relations of the resilient element assembly rather than of their material properties. To provide context, the review begins with an introduction to modelling methods for resilient elements, especially for rubber and rubber-like isolators, and three standardized measurement methods are introduced. Recent developments are then discussed including methods to extend the frequency range, which are mainly developments of the indirect method. Mobility methods, modal-based methods, recent active frequency-based substructuring (FBS) and inverse substructuring (IS) methods to study the dynamic properties of resilient elements are also described. Laboratory test rigs and the corresponding identification methods are outlined. Methods to evaluate nonlinear dynamic properties of resilient elements by laboratory measurements are also discussed. Finally, the review is concluded by discussing advantages and limitations of the existing methods and giving suggestions for future research.

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