Vibration-Isolating Materials

Usage example

Usage example Top floor Vibration isolation in cooling towers Vibration isolation in outdoor units Vibration isolation in cooling water horizontal piping Vibration isolation in water supply horizontal piping Vibration isolation in air blowers Intermediate floors Vibration isolation in floor-mounted packaged air conditioners Vibration isolation in hanger air conditioners Vibration isolation in floor-mounted fans Vibration isolation [...]

Recommended Vibration Isolation Grade Table/Vibration Isolation Grade Diagram/Vibration Isolation Grade Chart

Recommended Vibration Isolation Grade Table/Vibration Isolation Grade Diagram/Vibration Isolation Grade Chart 1.Vibration isolation The Vibration Isolation Grade estimates shown in Table 1 are determined based on the type of equipment installed Table 1: Vibration Isolation Grade Table (estimated values) Building structure Machine installation locations Allowable noise from vibration in rooms near machinery rooms Installed equipment [...]

Documentation necessary for studying vibration isolation of building installed equipment

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 [...]

Examples of vibration and noise tolerance

Examples of vibration and noise tolerance Vibration VL(dB) 45 50 55 60 65 Annoyance Indifference・・・・・・・・・・・・・・・・・Vague sense of vibration・・・・・・・・・・・・・・・Does not bother people・・・・・・・・・・・・・・・・・People feel that it is annoying Noise dB(A) 20 25 30 35 40 45 50 55 60 NC 10~15 15~20 20~25 25~30 30~35 35~40 40~45 45~50 50~55 Loudness Perceived silence・・・・・・・・・・・・・・・Extremely quiet・・・・・・・・・・・・・・・・・・Does not bother people・・・・・・・・・・・・・・Perceive noise・・・・・・・・・・Noise [...]