Experimental and numerical study of Advanced Transfer Path Analysis applied to a box prototype

Aragonès, Àngels; Poblet-Puig, Jordi; Arcas, Kevin; Rodríguez, Pere Vicens; Magrans, Francesc Xavier; Ferran, Antonio Rodríguez

doi:10.1016/j.ymssp.2018.05.030

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…Compared with the Classical TPA, Operational TPA or Component-based TPA [7][8][9][10] , the acceleration TPA method proposed in this paper is high accuracy, convenient in theory and application. Thus this is a novelty of this paper.…”

Section: Critical Vibration Paths Identificationmentioning

confidence: 99%

Analysis and control of vehicle steering wheel vibration based on acceleration transfer path analysis method

Ye,

Wang,

Liu

et al. 2023

Preprint

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This paper is aimed to analyze and control the structure vibration of a vehicle steering wheel by using the acceleration transfer path analysis (TPA) method and vibration sensitivity method. A steering wheel vibration test is conducted to obtain the critical engine speed and corresponding to the frequency. The acceleration-acceleration transfer function from mounts body side to steering wheel is deducted and tested, in conjunction with the actual acceleration spectrums of mounts body side, the acceleration spectrum of steering wheel is synthesized and the accuracy of the synthetic results is evaluated high. Then the vibration transmitted by each path is investigated and the main vibration participation paths are picked out from numerous paths. The interaction mechanisms between the path transfer vibration, path vibration participation and the total vibration are further obtained. The critical parameters (mounting stiffnesses and vibration sensitivity) of the main vibration participation paths are matched, modified and the vibration control effect is experimental verified. The results indicate that, by pertinently matching the stiffness parameters of the mounts and reducing vibration sensitivity of structure, the dynamic force transmitted by the paths are decreased, the vibration transfer functions from mounts body side to steering wheel are decreased, and then the actual steering wheel vibration is controlled.

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Section: Critical Vibration Paths Identificationmentioning

confidence: 99%

Analysis and control of vehicle steering wheel vibration based on acceleration transfer path analysis method

Ye,

Wang,

Liu

et al. 2023

Preprint

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“…OTPA is a method for identifying and quantifying the vibra tion and noise transfer path of mechanical systems [3], which does not need frequency response function testing or load iden tification, and just uses the data of operating conditions to esti mate the transmissibility function. Therefore, OTPA can greatly reduce the modeling cycle of vibration and noise transfer paths, and is widely used in practical engineering [4].…”

Section: An Accurate and Reliable Operational Transfer Path Analysis ...mentioning

confidence: 99%

An accurate and reliable operational transfer path analysis for transfer path contribution evaluation based on Landweber iterative method

Cheng

Zhu

et al. 2019

Meas. Sci. Technol.

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To improve the accuracy and reliability of operational transfer path analysis (OTPA) in transfer path identification and path contribution evaluation, Landweber-iterative-method-based OTPA is proposed in this paper. Firstly, the vibration data at the reference points and the target points in the operating conditions are obtained. Secondly, the appropriate iteration model and the iterative termination criterion of the Landweber iterative method are designed to improve the fitting degrees of the transmissibility function matrix. Thirdly, the transmissibility function matrix is obtained using the data in experimental operating conditions. Finally, transfer path identification and contribution evaluation are carried out in practical operating conditions, and the major transfer paths are identified. Furthermore, the accuracy, reliability and noise tolerance capability of the proposed method are comparatively studied with truncated singular value decomposition and Tikhonov-regularization-based OTPA, according to typical numerical case studies and experimental case studies on a cylindrical test bed. Generally, the proposed method can obviously improve the accuracy and reliability of transfer path identification and path contribution evaluation, and provide significant evidence for vibration reduction and the control of mechanical systems.

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“…Te modifcations were made to reduce the interior noise level at a given location based on the contribution from some structural elements of the bogie or the engine. Aragones et al [15] used the ATPA method to the rectangular body model and developed a numerical model of the rectangular box based on fnite elements, which reconstructed the working condition signals through a direct transfer function. It presented a good agreement between measured and numerical results, which provided a reference for the numerical modeling study of the ATPA method.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Vibration Transmission Path in Packaging System and Design of Teaching Experiment

Gong,

Lin

2024

Shock and Vibration

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It is essential for realizing the most suitable product buffer packaging design to quantify the vibration transmission characteristics of the product packaging system. The experiment system for the vibration transmission path of protective packaging is designed in this paper. The practical system is used to analyze the vibration transfer path of the product packaging system and identify the critical transfer path. The concepts of the cushions’ contribution rate and the cushions’ weighted contribution rate are introduced. The product cushioning based on the weighted equal contribution rate of the cushions is proposed. It has been verified by experiments that the system can accurately identify the transfer path with the weighted contribution rate of the cushions as a reference for the design of product buffer packaging, which improves the utilization rate of buffer packaging materials and reduces the cost of packaging materials. The weighted equal contribution rates of buffer pads 1, 2, 3, and 4 are 40%, 27%, 22%, and 11%, respectively. For the needs of experiment teaching, the teaching content based on the protective packaging transfer path testing system is designed, which provides a reference for the practical education of the packaging specialty.

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Experimental and numerical study of Advanced Transfer Path Analysis applied to a box prototype

Cited by 10 publications

References 15 publications

Analysis and control of vehicle steering wheel vibration based on acceleration transfer path analysis method

Analysis and control of vehicle steering wheel vibration based on acceleration transfer path analysis method

An accurate and reliable operational transfer path analysis for transfer path contribution evaluation based on Landweber iterative method

Analysis of Vibration Transmission Path in Packaging System and Design of Teaching Experiment

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