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

Number Name

① Girders

② Thickness(m)

③ Lx・Ly

④ 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