TY JOUR TI DIFFERENTIAL EQUATION OF OSCILLATION OF THE ELEMENTS OF THE BASE CHASSIS FIRE-RESCUE VEHICLE WHEN DRIVING ON THE ROADS KW fire-rescue vehicle KW oscillatory system KW unsprung mass KW differential equation of oscillation KW coefficient of elastic resistance JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Ivanov, K.S. AU Shiroukhov, A.V. PY 2015 IS 2015 PB Saint-Petersburg University of State Fire Service of Emercom of Russia