NONLINEAR VIBRATIONS OF HYDRAULIC
SHOCK ABSORBERS

N. A. Dokukova,a} M. D. Martynenko,b}
and E. N. Kaftaikinac}

UDC 517.9

A method of equivalent linearization for a nonlinear dynamic 
system of vibrations with a hydraulically elastic shock absorber is 
presented. An integral estimation of the exact and approximate solutions 
is obtained. It is shown that with an appropriate choice of the parameter 
 the linearized dynamic system differs insignificantly 
from the nonlinear one. The influence of nonlinear factors on the 
coefficients of the dynamic rigidity and transmission has been established. 
These results agree well with the experimental curves published in 
the foreign scientific literature.

a}International Institute of Labor and Social Relations,
21/1 Kazinets Str., Minsk, 220099, Belarus; email: dokukova@ mail.ru; 
b}Belarusian State University, 4 Nezavisimost' Ave., Minsk, 
220050, Belarus; c}Joint Institute of Machine Building, National 
Academy of Sciences of Belarus, Minsk. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 81, No. 6, pp. 1154-1157, November-December, 
2008. Original article submitted September 26, 2007; revision submitted 
November 13, 2007.