Technology

Documentation necessary for studying vibration isolation of building installed equipment

  • Installed equipment-related items
    Shape, weight, and rotation speed (RPM) of the vibration source, attachment diagram, and center of gravity, as well as type and number of pieces of vibration-isolating material
    When using component manufacturer standard vibration-isolating material, the overall spring constant. In addition, for air conditioners, the weight on top of the vibration-isolating material
  • Installed equipment positional relationship
    Plan diagram of where the components are installed (locations of stories and base lines)
  • Building construction-related items
    Specifications of the floor where the components are installed. Type of concrete, slab thickness, and joist dimensions

    Specifications of the floor where the components are installed.
    Number Name
    Girders
    Thickness(m)
    Lx・Ly
    Floor plates

  • Amount of damping based on the relationship between the machinery room and the evaluation space
Solid matter sound field:-8dB
Bodily sensation field  :-8dB
Solid matter sound field:-8dB
Bodily sensation field  :-8dB
Solid matter sound field:-8dB
Bodily sensation field  :-8dB
Solid matter sound field:-5dB
Bodily sensation field  :-5dB
Machinery room Solid matter sound field:-5dB
Bodily sensation field  :-5dB
Solid matter sound field:-5dB
Bodily sensation field  :-8dB
Solid matter sound field:0dB
Bodily sensation field  :-8dB
Solid matter sound field:-5dB
Bodily sensation field  :-8dB

※Extracted from Building Sound Insulation Performance Standards and Design Guidelines, 2nd Edition, Architectural Institute of Japan

Please contact us for more details