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Utjecaj vertikalnih vibracija rotora na silu kopanja rotornog bagera

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  • Author(s): Golubović, Zoran; Lekić, Zlatibor; Jović, Srdjan
  • Source:
    Tehnički vjesnik; ISSN 1848-6339 (Online); ISSN 1330-3651 (Print); ISSN-L 1330-3651; Volume 19; Issue 4
  • Document Type:
    Electronic Resource
  • Online Access:
    https://hrcak.srce.hr/93540
    https://hrcak.srce.hr/file/137692
    https://hrcak.srce.hr/file/137693
  • Additional Information
    • Additional Titles:
      Influence of bucket wheel vertical vibration on bucket-wheel excavator (BWE) digging force
    • Publisher Information:
      University of Slavonski Brod, Faculty of Mechanical Engineering Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek 2012
    • Abstract:
      Ovaj rad daje postupak određivanja sile kopanja rotornog bagera uzimajući u obzir karakteristike kopanog materijala, reznu ivicu lopatice, brzinu rezanja i vertikalne vibracije radnog kotača (rotora). Sila kopanja ovisi o specifičnom otporu kopanju (SOK) i ukupnoj duljini reznih rubova lopatice koje su istovremeno u zahvatu s kopanim materijalom. SOK je uvjetovan karakteristikama kopanog materijala, brzine rezanja i slučajna je veličina, dok ukupna duljina reznih rubova lopatice ovisi o broju lopatica koje su istovremeno u zahvatu s kopanim materijalom i vertikalnim vibracijama radnog kotača. Funkcija promjene ukupne duljine reznih rubova lopatica u ovisnosti od vremena dobivena je na osnovu dinamičkog modela rotornog bagera u vertikalnoj ravni, uzimajući u obzir pomak središta radnog kotača.
      This paper provides a method of determining the BWE digging force considering the characteristics of soil which needs to be excavated, bucket cutting contour, cutting speed and vertical vibration of the bucket wheel. Digging force depends on the specific force resistance to excavation (SFRE) and the total length of buckets cutting contours that are simultaneously in mesh with the material. The SFRE is conditioned by the characteristics of material, cutting speed and it is random variable, while the total length of buckets cutting contours depends on the number of buckets that are simultaneously in mesh with the soil and vertical oscillations of the bucket wheel. Total length of buckets cutting contours time function is determined considering moving of bucket wheel center point, based on a dynamic model of BWE in the vertical plane.
    • Subject Terms:
      rotorni bager; vertikalne vibracije; sila kopanja; dinamički model; bucket-wheel excavator; vertical vibration; digging force; dynamic model; text; info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion
    • Availability:
      Open access content. Open access content
      info:eu-repo/semantics/openAccess
      TEHNIČKI VJESNIK - TECHNICAL GAZETTE is an Open Access journal. All content is made freely available. Users are allowed to copy and redistribute, and alter, transform, or build upon the material as long as they attribute the source in an appropriate manner.
    • Note:
      application/pdf
      Croatian
      English
    • Other Numbers:
      HRCAK oai:hrcak.srce.hr:93540
      1496982090
    • Contributing Source:
      HRCAK PORTAL ZNANSTVENIH CASOPISA REPUB
      From OAIster®, provided by the OCLC Cooperative.
    • Accession Number:
      edsoai.on1496982090
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