TY  - JOUR
T1  - Performance Assurance of Hydraulic Shock-Absorbers at Subzero Temperatures
AU - Domnyshev, Dmitriy AU - Dolgushin, Aleksey AU - Voronin, Dmitriy AU - Blynskiy, Yuriy AU - Kurnosov, Anton 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 24
SP  - 9608
EP  - 9612
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.9608.9612
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.9608.9612
KW  - Hydraulic shock-absorbers
KW  -suspension
KW  -modified test shock-absorber fluid
KW  -performance of
hydraulic shock-absorbers
KW  -resistance force
KW  -compression
AB  - The use of production vehicles often takes place at extreme low temperatures which leads to increase
in operational costs. Thermal abuse of main units and nodes is caused primarily by the change in
viscosity-temperature properties of power fluids. Performance of a suspension hydraulic shock-absorber is
tightly connected with viscosity properties of the power fluid. One of the basic criteria of hydraulic
shock-absorber performance at subzero temperatures is resistance force. Based on the performed studies,
resistance forces of hydraulic shock-absorbers in temperature range from 30°C below zero to 10°C below zero
change from 3230-4500 N at rebound with the max allowable value of 4022 N and from 830-1410 N at compression
with the max allowable value of 1226 N. The above figures indicate performance deterioration. In this research,
we suggest assuring performance of hydraulic shock-absorbers by using a modified shock-absorber fluid.
Adding 25 % of diesel fuel by total volume helped to decrease dynamic viscosity of the shock-absorber fluid
two times compared to a standard fluid at a given temperature. The use of the designed test fluid will help to
increase performance of the suspension and ensure the performance of hydraulic shock-absorbers at subzero
temperatures.
ER  -