Investigation of energy losses in hydraulic shock absorbers of the BTR-4 armored personnel carrier suspension and assessment of the feasibility of using its recovery system

Dushchenko, Vladislav; Vorontsov, Serhii; Nanivsky, R.

doi:10.33577/2312-4458.23.2020.40-49

Cited by 1 publication

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is characterized by a mileage reserve (specific fuel consumption and the amount of fuel on board), the resource of nodes, and the frequency of their maintenance. The impact factors of the suspension that limit autonomy are the large losses in DD, which, depending on the type of suspension and modes of movement, could be up to 30 % of the engine power [4,11,14]. That leads to poor fuel efficiency, reduces the running reserve, and, accordingly, reduces autonomy.…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Comparing the physical principles of action of suspension damping devices based on their influence on the mobility of wheeled vehicles

Dushchenko

Vorontsov

Masliyev

et al. 2021

EEJET

View full text Add to dashboard Cite

This paper reports the comparison of two physical principles of action of suspension damping devices based on their influence on the mobility indicators for an 8×8 wheeled machine. A radical difference between these principles of action is the dependence of resistance forces on the speed of the relative movement of working bodies (internal friction: hydraulic shock absorbers) or on the relative movement of working bodies (external friction: friction shock absorbers). Widespread hydraulic shock absorbers have certain disadvantages that do not make it possible to further increase the mobility of wheeled or tracked vehicles without the use of control and recuperation systems. In turn, in friction shock absorbers, the use of new materials has eliminated many of their shortcomings and thus can provide significant advantages. It was established that the application of friction shock absorbers for a given wheeled vehicle did not significantly affect the speed compared to hydraulic ones. The main factor that prevented the implementation of the advantages of friction shock absorbers was the insufficient suspension travel. However, friction shock absorbers absorbed 1.76...2.3 times less power, which reduced the load on nodes and increased efficiency (autonomy). In addition, a more uniform load on suspensions was ensured, which improved their resource, and, due to the prevailing vertical oscillations of the suspended body over the longitudinal-angular ones, the geometric passability improved as well. The comparison of two physical principles of action of damper suspension devices in a wheeled vehicle has shown that the use of friction shock absorbers could provide significant advantages in resolving the task relates to improving the mobility and would fundamentally affect the choice of the suspension energy recuperation system if it is applied.

show abstract

Section: The Study Materials and Methodsmentioning

confidence: 99%

“…Work [11] investigated energy losses in the HSA of suspension in the armored personnel carrier BTR-4 when driving over ground roads of varying severity. It has been shown that starting at a speed of 20 km/h those losses increase sharply under all road conditions.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%