No announcement yet.

Moment of Inertia

This topic is closed.
  • Filter
  • Time
  • Show
Clear All
new posts

  • Moment of Inertia

    Dear Sirs,

    I am working on my PhD on the Control System Laboratory
    of the Mechanical Engineering Department of the National
    Technical Universoty of Athens, Greece.

    I am in the need of the moment of inertia value of the
    forearm-hand segment of the human uuper limb.

    I have computed this by using the equations provided in the
    book of David Winter : Biomechanics and Motor Control of Human Movement.
    But the value I have reached up is 0.23 Kgm^2, which I think is
    much greater than I have came up in other papers.

    I would like to ask you if you can inform me if this value
    it's ok , and if you can, send me the right value.

    If you can, I would be very gratefull to receive from you
    the above papers:

    Zatsiorsky, V. and Selujanov V. (1983) The mass and inertia
    characteristics of the man segments
    of the human body. Biomechanics YIII-B (Eds.=A0 Matsui, H., and Kobayashi K.)
    pp. 1151-1159. Human Kinetic Publishers, (Ok, I know its a book, but
    do you have it all or this portion (pp 1151-1159) in pdf format?)

    Walsh E. G. & Wright G. W. (1987a) 'Inertia, resonant frequency,
    stiffness and kinetic energy of the human forearm.' Quarterly Journal
    of Experimental Physiology, 72, 161-170.

    Finally I would like to ask another question.

    As I am building a dynamic model of the human forearm-hand,
    I would like to know if I have to add friction on the elbow
    joint (flexion-extension is the only degree of freedom I am
    interestd in for now). And if I must do it, is it like:
    Friction = K * q_dot, where q_dot is the angular velocity
    of the moving forearm-hand?
    And what is the value of the constant K?

    Thanks in advance for your help,

    Panagiotis Artemiadis

    Panagiotis K. Artemiadis
    PhD Candidate
    Control Systems Laboratory
    Mechanical Eng. Dept
    National Technical University of Athens
    9 Heroon Polytechniou Str.,
    Zografou Athens 15700, Greece
    Phone : ++30 - 210 - 7723656

    To unsubscribe send SIGNOFF BIOMCH-L to
    For information and archives:
    Please consider posting your message to the Biomch-L Web-based
    Discussion Forum: