Vibro-SM – Dynamic Characteristics - Brochure

ALPHA ACOUSTIKI Ltd. 19 Kambouroglou Str-11525 Athens TEL.:+30 210 6779875 - FAX: +30 210 6779269 www.vibro.gr e-mail: info@vibro.gr 90% -20dB98% -34dB70% -10dB25% -2dB101001 10 100Natural frequency fn (Hz)Excitation frequency (Hz) DYNAMIC CHARACTERISTICS Vibro SM 1. LOAD - DEFLECTION CURVES * 2. LOAD – NATURAL FREQUENCY CURVES 3. VIBRATION REDUCTION CHART SELECTION METHOD We check the deflection (mm), for different number of layers, in combination with the assessed load (Kg) per mounting point (chart 1). Then we calculate (chart 2) the natural frequency of the antivibration pad for every number of layers. MSfn?21? From chart 3, with the assessed excitation frequency of the machine (fe = rpm / 60) and the natural frequency from chart 2, we calculate the % theoretical vibration reduction (efficiency, n). For achieving optimum results in special applications, we recommend to contact our technical department for selecting the best antivibration solution. * (The tests were measured according the EN 826-97 at National State Laboratories ) 9 - 2005 SM 1500 SM1500