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    Amplitude–Frequency Characteristics During the Volume-Pulsatile Packing Process

    Source: Journal of Manufacturing Science and Engineering:;2021:;volume( 143 ):;issue: 011::page 0111007-1
    Author:
    Qin, Sen
    ,
    Zhang, Huan-huan
    ,
    Jiang, Hao-wei
    ,
    Xu, Wen-hua
    ,
    Qu, Jin-ping
    DOI: 10.1115/1.4051007
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: To obtain high-quality plastic products, an industrial volume-pulsatile injection-molding (VPIM) machine is developed to achieve high screw displacement amplitude. However, it is difficult for engineers to optimize vibration parameters and improve equipment due to lack of a comprehensive understanding of the coupling correlation between amplitude and frequency, which seriously hinders the development of VPIM technology and machine. To address the challenge, this paper investigates the amplitude–frequency characteristics during the volume-pulsatile packing process. According to the working principle of this machine, the dynamics model of injection screw is established and equivalent to a mass-spring-damper system. Based on the dynamics equivalent model, we deduce the forced vibration response of screw displacement, and the vibration responses of screw displacement and oil pressure under the hydraulic system. An oil pressure control model is proposed and numerically solved. Experimental and theoretical results reveal the effects of material properties, machine components, and control system on the amplitude–frequency characteristics during the volume-pulsatile packing process. For injection-molding grade materials, the reductions in oil pressure amplitude and screw displacement amplitude are attributed to the inertial delay of the hydraulic system in this paper, rather than the viscous resistance of materials in the previous perception. The response speed of the servo control system to pressure should be improved to enhance oil pressure amplitude and screw displacement amplitude. This paper enriches the basic theories of polymer vibration processing and points out the direction of equipment improvement.
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      Amplitude–Frequency Characteristics During the Volume-Pulsatile Packing Process

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    contributor authorQin, Sen
    contributor authorZhang, Huan-huan
    contributor authorJiang, Hao-wei
    contributor authorXu, Wen-hua
    contributor authorQu, Jin-ping
    date accessioned2022-02-06T05:43:48Z
    date available2022-02-06T05:43:48Z
    date copyright6/11/2021 12:00:00 AM
    date issued2021
    identifier issn1087-1357
    identifier othermanu_143_11_111007.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4278635
    description abstractTo obtain high-quality plastic products, an industrial volume-pulsatile injection-molding (VPIM) machine is developed to achieve high screw displacement amplitude. However, it is difficult for engineers to optimize vibration parameters and improve equipment due to lack of a comprehensive understanding of the coupling correlation between amplitude and frequency, which seriously hinders the development of VPIM technology and machine. To address the challenge, this paper investigates the amplitude–frequency characteristics during the volume-pulsatile packing process. According to the working principle of this machine, the dynamics model of injection screw is established and equivalent to a mass-spring-damper system. Based on the dynamics equivalent model, we deduce the forced vibration response of screw displacement, and the vibration responses of screw displacement and oil pressure under the hydraulic system. An oil pressure control model is proposed and numerically solved. Experimental and theoretical results reveal the effects of material properties, machine components, and control system on the amplitude–frequency characteristics during the volume-pulsatile packing process. For injection-molding grade materials, the reductions in oil pressure amplitude and screw displacement amplitude are attributed to the inertial delay of the hydraulic system in this paper, rather than the viscous resistance of materials in the previous perception. The response speed of the servo control system to pressure should be improved to enhance oil pressure amplitude and screw displacement amplitude. This paper enriches the basic theories of polymer vibration processing and points out the direction of equipment improvement.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAmplitude–Frequency Characteristics During the Volume-Pulsatile Packing Process
    typeJournal Paper
    journal volume143
    journal issue11
    journal titleJournal of Manufacturing Science and Engineering
    identifier doi10.1115/1.4051007
    journal fristpage0111007-1
    journal lastpage0111007-11
    page11
    treeJournal of Manufacturing Science and Engineering:;2021:;volume( 143 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian