Results 1 to 5 of 5

Thread: Damping Factor of Conveyor Belts

  1. #1
    Dereck Guest

    damping factor the belts

    I need to know values of the factor of damping "c", of the belts reinforced with steel cables that are used for the material transport in the mining ones. I have a denomination that is 21CV1.
    If somebody has this value of "c"(damping factor) and he could give it serious very good for my.
    thank you.

  2. #2
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 58 Years / 8 Month Lawrence K. Nordell has 58 Years and 8 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

    Searching nothing specified

    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    Explain what your damping factor represents. Is this a vibratory factor? Is it longitudinal, transaxial, impact?

    What is the application?

    Are you trying to do elastic transient dynamic tension or shock wave analysis?

    Is the factor you seek time, velocity or accelereation dependent?

    Lawrence Nordell
    Conveyor Dynamics, Inc.

  3. #3
    Dereck Guest
    The factor or coefficient is a vibratory factor, one can obtain from the belt when carrying out a rehearsal of free vibrations.
    This coefficient, commonly denominated "C" it intervenes in the answers dynamic transientes.
    I need this coefficient to be able to evaluate their importance in the dynamic tensions that take place in the belts conveyors reinforced with steel cables during the detentions of a system transporter.
    I need the value of this coefficient to include it in the matrix damping of a system of differential equations of second order.This is to evaluate the longitudinal answers of the system.

  4. #4
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 58 Years / 8 Month Lawrence K. Nordell has 58 Years and 8 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

    Searching nothing specified

    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    I asume you are refering to the C in:

    F(t) = Mdx^2 + Cdx + Kx + Gx + H(dx,x); where C= velocity dep.
    from our paper:Transient Belt Stresses During Starting & Stopping
    Nordell, Ciozda in Bulk Solids Handling Vol. 4 No. 1 March 1984.

    Unfortunately, C is not single valued. This C damping property varies with belt construction, idlers, idler spacing, belt load crossection, and belt tension all along the conveyor's carry and return strands. Furthermore, the damping is a property of core gum and cover rubbers used and steel cord and/or fabric construction. Also the steel cord varies with cable construction, rubber penetration in the cable matrix and factory cable pretensioning.

    A lot of research has evolved on these points and certainly differs between specialist in this field. Conveyor Dynamics, Inc. developed the basic formulation structure in 1980-1983 and published this concept as noted above. We continue to enhance its details. Others have also made reference to the complexities in BSH in later issues. Refer to our latest publication for more field measurements demostrating the dynamic shock wave non-linearity in Bulk Solids Handling:
    "The Power of Field Measurements - Part I"
    Lodewijks, Kruse BSH Vol. 18, No. 3 July/September 1998

    Good Luck,
    Lawrence Nordell
    Conveyor Dynamics, Inc.
    web site: www.conveyor-dynamics.com
    emails: nordell@conveyor-dynamics.com
    phone: USA-360-671-2200

  5. #5
    Dereck Guest

    Nordell

    Thank you for their answers. But in their carried out works and their experiences the order of magnitude that level is approximately (I need to know that order is, you that it depends on several factors, but you imagines that he has some data of its works carried out in those that I can index this order of magnitude for the elements that compose this matrix of damping). for example... .10,100,1000 or but.
    The factor "C" it is measured in Kg/s by what I have understood.
    From already thank you

Similar Threads

  1. Higher Conveying Speeds with Steel Cord Belts
    By Kayem in forum Trough Belt Conveying
    Replies: 9
    Last Post: 23rd February 2003, 0:12
  2. Cord Configurations in Steel Cord Belts
    By Kayem in forum Trough Belt Conveying
    Replies: 6
    Last Post: 4th December 2002, 23:37
  3. Speed control of Conveyor Belts
    By leervandert in forum Mechanical Conveying
    Replies: 7
    Last Post: 15th November 2002, 5:10
  4. Inquiry for Twin Power Belts
    By Author in forum New Projects, Tenders, Inquiries
    Replies: 0
    Last Post: 10th July 2002, 7:44
  5. Discharge from conveyor belts
    By Peter Brown in forum Trough Belt Conveying
    Replies: 8
    Last Post: 5th July 2002, 11:23

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO