Vibration analysis and development of an ultrasonic elliptical vibration tool based on a portal frame structure

Yang, Yang; Gao, Shiming; Chen, Keyu; Pan, Yayue; Guo, Ping

doi:10.1016/j.precisioneng.2017.06.016

Cited by 29 publications

(5 citation statements)

References 15 publications

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“…Results showed that increasing system stiffness, increases the natural frequency, and natural frequencies of a T-shape frame are equal to a simply supported beam. Reference [18] analyzed the mode shapes and resonant frequencies of an ultrasonic elliptical vibration tool based on a portal frame structure by using a transfer matrix approach to solving the (EB) beam vibration equations. The dynamic behavior of the tool was successfully modelled and extended to analyze the dynamics of the tool during operation.…”

Section: B Euler-bernoulli Beam Theorymentioning

confidence: 99%

A Review of the Vibration Analysis Methods for Frame Structures

2022

BSETN-22 &Amp; L2hs2-22 Sept. 12-14, 2022 Budapest (Hungary)

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Frames are basic structural components that appear in civil engineering applications, as well as chemical, mechanical and aerospace fields. With the size and complexity of modern-day structures and machinery increasing, frames are now required to withstand much larger cyclic loads. This article attempts to review some of the literature from the past twenty-one years, on how researchers analysed the vibrations in structural frames. This review also places emphasis on the methods used to analyse frames with semi-rigid connections, due to their impact on structural response. The theories used by authors to model beam and column elements, along with the methods used to solve the equations of motion are covered. Sections outlining the vibration and damage monitoring methods are also presented in this article. Other sections cover the research into soil structure interactions, the use of shape memory alloys (SMAs) and piezoelectric devices, as well as physical experiments that were conducted.

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Section: B Euler-bernoulli Beam Theorymentioning

confidence: 99%

A Review of the Vibration Analysis Methods for Frame Structures

2022

BSETN-22 &Amp; L2hs2-22 Sept. 12-14, 2022 Budapest (Hungary)

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“…The symmetrical and asymmetrical vibration modes with a resonance frequency of 24 KHz can be achieved by UEMT: particularly, a vertical amplitude of 1.4 µm and a horizontal amplitude of 0.6 µm for the elliptical trajectory can be realized under a 90-degree phase difference. An analytical method for calculating the resonant frequency and mode for ultrasonic elliptical vibration devices was proposed by Yang et al [26]. Based on the analytical method, a gantry-frame structural ultrasonic elliptical vibration tool was developed.…”

Section: Introductionmentioning

confidence: 99%

Developmental and Experimental Study on a Double-Excitation Ultrasonic Elliptical Vibration-Assisted Cutting Device

Hu,

Xin,

Zhang

et al. 2024

Machines

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Ultrasonic elliptical vibration-assisted cutting (UEVC) has been successfully applied in the precision and ultra-precision machining of hard and brittle materials due to its advantages of a low cutting force and minimal tool wear. This study developed a novel double-excitation ultrasonic elliptic vibration-assisted cutting (D-UEVC) device by coupling ultrasonic vibrations in orthogonal dual paths. A two-degree-of-freedom vibration system of the D-UEVC was modeled, form which the elliptical trajectory of the end under different phase angle φ values was derived. The initial dimensions of the D-UEVC device were obtained through theoretical calculations. Subsequently, with the aid of finite element analysis methods, structural dynamic analysis of the device was conducted to obtain the elliptical vibration trajectory under different phase differences of the excitation source. In order to verify the cutting trajectory and cutting performance of the D-UEVC device, a prototype of the device was developed, and a series of vibration performance tests as well as the Inconel 718 cutting experiment were conducted. The experimental results illustrated that the D-UEVC device can achieve the elliptical vibration trajectory at the tool tip with a resonant frequency of 36.5 KHz. The adjustable elliptical vibration trajectories covered a range of ±4 μm in the axial and radial directions. Compared with the surface roughness Ra = 0.36 μm under the conventional cutting, the surface roughness of Inconel 718 under D-UEVC was Ra = 0.215 μm. Thus, the surface quality can be significant improved by utilizing the D-UEVC device.

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“…To enhance machining efficiency, researchers have recently developed the vibrationassisted machining technique by combining ultra-precision SPDC with vibration technology [34][35][36]. Compared to the conventional SPDC, this method can significantly reduce the cutting force and improve the BDT depth for brittle materials [37,38].…”

Section: Introductionmentioning

confidence: 99%

On a Novel Modulation Cutting Process for Potassium Dihydrogen Phosphate with an Increased Brittle–Ductile Transition Cutting Depth

Yang,

Chen,

Zhao

2023

Machines

Self Cite

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Potassium dihydrogen phosphate (KDP) has garnered considerable attention due to its diverse applications across various scientific and engineering domains. Although promising machining performance enhancements have been achieved in ultra-precision diamond cutting, the brittle–ductile transition (BDT) depth for KDP crystals is essentially at the nanometer range and limits the further improvement of machining efficiency. In this paper, a novel ultra-precision diamond cutting process based on tool trapezoidal modulation is proposed for the first time to investigate the BDT characteristics of KDP crystals. By intentionally designing the tool modulation locus, the uncut chip thickness and cutting direction in the cutting duty cycle are kept constant, which provides a new strategy for probing the BDT mechanism and enhancing the machining performance. The BDT depth is significantly increased compared to the conventional ultra-precision diamond cutting owing to its unique modulation machining advantages. The significance of this paper lies not only in the improvement of the machining efficiency of KDP crystals through the proposed modulation cutting process, but also in the possibility of extending the relevant research methods and conclusions to the machining performance enhancement of other brittle optical crystals.

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Vibration analysis and development of an ultrasonic elliptical vibration tool based on a portal frame structure

Cited by 29 publications

References 15 publications

A Review of the Vibration Analysis Methods for Frame Structures

A Review of the Vibration Analysis Methods for Frame Structures

Developmental and Experimental Study on a Double-Excitation Ultrasonic Elliptical Vibration-Assisted Cutting Device

On a Novel Modulation Cutting Process for Potassium Dihydrogen Phosphate with an Increased Brittle–Ductile Transition Cutting Depth

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