Comparisons of apparent mass responses of human subjects seated on rigid and elastic seats under vertical vibration

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      <subfield code="a">Comparisons of apparent mass responses of human subjects seated on rigid and elastic seats under vertical vibration</subfield>
      <subfield code="c">K.N. Dewangan...[et.al]</subfield>
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      <subfield code="a">The apparent mass (AM) responses of human body seated on elastic seat, without and with a vertical back support, are measured using a seat pressure sensing mat under three levels of vertical vibration (0.25, 0.50 and 0.75 m/s2 rms acceleration) in 0.5020 Hz frequency range. The responses were also measured with a rigid seat using the pressure mat and a force plate in order to examine the validity of the pressure mat. The pressure mat resulted in considerably lower AM magnitudes compared to the force plate. A correction function was proposed and applied, which resulted in comparable AM from both measurement systems for the rigid seat. The correction function was subsequently applied to derive AM of subjects seated on elastic seat. The responses revealed lower peak magnitude and corresponding frequency compared to those measured with rigid seat, irrespective of back support and excitation considered.</subfield>
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      <subfield code="w">MAP20100019818</subfield>
      <subfield code="t">Ergonomics : the international journal of research and practice in human factors and ergonomics</subfield>
      <subfield code="d">Oxon [United Kingdom] : Taylor & Francis, 2010-</subfield>
      <subfield code="x">0014-0139</subfield>
      <subfield code="g">02/12/2013 Volumen 56 Número 12 - diciembre 2013 </subfield>
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