Analysis of contact force characteristics of vibratory finishing within pipe-cavity

Hao, Yupeng; Yang, Shengqiang; Li, Xiuhong; Li, Wenhui; Wang, Xiuzhi

doi:10.1007/s10035-021-01089-3

Cited by 13 publications

(5 citation statements)

References 30 publications

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“…Notably, both signals present a dominant peak at the container driving frequency of 35 Hz and several smaller peaks at its frequency-multiplied frequencies (70 Hz, 105 Hz, 140 Hz, etc.). The frequency multiplication characteristic of contact force was also discovered in other related study [29]. Moreover, the amplitude at 20 Hz of the vertical vibration frequency of the workpiece is very small, less than 10% of the peak value at 35 Hz.…”

Section: Comparison Of Experimental and Simulation Dynamic Forces 331...supporting

confidence: 66%

Simulation and experimental study on the bidirectional composite vibratory finishing characteristics

Yang,

Li,

Wang

et al. 2023

Preprint

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As a novel high efficiency collaborative surface finishing technology of structure shape and surface integrity, bidirectional composite vibratory finishing (BCVF) can be applied to finish various complex components. The movement behavior of abrasive particles is closely related to the machined part performance. The flow characteristics of particles were analyzed based on the discrete element method (DEM), which reveals that the granular temperature can explain the changes in the normal and tangential cumulative contact energy on the workpiece surface. In addition, the normal contact force on the container sidewall and the pressure distribution on the workpiece surface were tested under different process parameters and the results were compared with DEM simulations. The results show that DEM model accurately predicted the particle-wall normal contact force frequency content, and the dominant frequencies are the container driving frequency and its multiplication. Meanwhile, the pressure-sensitive film can clearly and intuitively demonstrate the integrated action behavior of the particles on the workpiece surface. The overall trends of the measured pressure were comparable to the simulation results, in that the pressure increased significantly with vibration frequency and amplitude. Dimensionless vibration velocity amplitude has been verified effective in analyzing the combined effect of vibration frequency and amplitude. Therefore, it is shown that spherical particle in simulation can predict some critical properties in non-spherical processing, which provides a reference for the extended application of the BCVF process.

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Section: Comparison Of Experimental and Simulation Dynamic Forces 331...supporting

confidence: 66%

Simulation and experimental study on the bidirectional composite vibratory finishing characteristics

Yang,

Li,

Wang

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The DEM simulation of BCVF was performed using the commercial software EDEM. The Hertz-Mindlin (no-slip) model has been confirmed to be suitable to explain the "media-component" interaction in vibratory finishing [12,[14][15][16][17]20]. In this model, the normal force component is based on Hertzian contact theory [21], and the tangential force model is based on the work of Mindlin-Deresiewicz [22].…”

Section: Simulation Parametersmentioning

confidence: 99%

“…It is worth noting that the values of these variables obtained in the data bins are not exerted by a single particle, but the area of the part surface surrounded by the data bins is subjected to the comprehensive effect of all particles during the simulation time [17]. In an effect to quantify these variables, e.g., average normal contact energy can be expressed by:…”

Section: Extraction Of Media-component Interaction Datamentioning

confidence: 99%

“…In our simulation, the time step was taken as 20% of the critical Rayleigh time step [17,20]. The total simulation time was set to 2 s, and the data saving interval was 0.001 s. The related DEM parameters are given in Table 1.…”

Section: Simulation Parametersmentioning

confidence: 99%

“…The results showed that contact forces increased with the media depth and the normal wall velocity. Hao et al [17] conducted a series of simulations for vibratory finishing within restricted space and discovered the frequency multiplication phenomenon of the normal contact force between particles and the treated surface. Most studies mainly focused on describing the contact force and relative velocity rather than contact energies in vibratory finishing.…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation of a novel bidirectional composite vibratory finishing

Yang¹,

Wang³

et al. 2022

Preprint

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Given the poor accessibility of the current finishing process for parts with complicated geometries, a novel bidirectional composite vibratory finishing (BCVF) approach is presented, which combines the power actions on abrasive particles and processed workpieces. The discrete element method (DEM) was used to obtain a fundamental understanding of the BCVF process. By comparing different processes, it has been demonstrated that the BCVF promotes the mobility of abrasive particles to improve the finishing results and efficiency further. The characteristics of normal and tangential contact on the surface of the workpiece involved in the BCVF process were analyzed. Meanwhile, the effects of container size (or wall effects), media amount, workpiece position, and vibration parameters (including vibration amplitude and frequency) on the media-component interactions were systematically studied. The results show that the distance between the workpiece and the container wall in the y-direction can be reduced to 4d (d is the abrasive particle diameter) without affecting the finishing effect. In addition, with the enhancing vibration in the x-direction, particle impact and shear effects are subsequently strengthened. In contrast, the media amount above the workpiece and the z-directional vibration is mainly effective for the shear effect. Overall, the process can enhance the impact and shear effects simultaneously through composite vibration.

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Wave Nature of the Abrasive Granules Action on the Surface of Parts During Vibration Processing

Mitsyk

Fedorovich

Грабченко

2022

Lecture Notes in Mechanical Engineering

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Analysis of contact force characteristics of vibratory finishing within pipe-cavity

Cited by 13 publications

References 30 publications

Simulation and experimental study on the bidirectional composite vibratory finishing characteristics

Simulation and experimental study on the bidirectional composite vibratory finishing characteristics

Numerical investigation of a novel bidirectional composite vibratory finishing

Wave Nature of the Abrasive Granules Action on the Surface of Parts During Vibration Processing

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