CFD Analysis of the Effect of a Ball Throttle on the Hydraulic Drive Stability

Abstract

This paper investigates the impact of a ball throttle on the stability of a vehicle's hydraulic drive system. To do so, a simulation model of the hydraulic system was developed in MATLAB/Simulink, and a 3D computational fluid dynamics (CFD) analysis of the working fluid flow was conducted in SolidWorks Flow Simulation. Additionally, experimental studies were performed on a KI-4815M hydraulic test bench, utilizing SS302 pressure sensors and an Arduino-based data acquisition system. The findings indicate that implementing a ball throttle helps reduce pressure fluctuations and dynamic loads within the hydraulic system. The differences between the CFD results, Simulink simulations, and experimental data do not exceed 5,67% at a load of 700 N. These results confirm the effectiveness of the proposed method for enhancing the stability of hydraulic drives. ABSTRAK: Kajian ini menyelidiki kesan pendikit bola terhadap kestabilan sistem pemacu hidraulik kenderaan. Bagi mencapai tujuan ini, satu model simulasi sistem hidraulik telah dibangun menggunakan MATLAB/Simulink, manakala analisis dinamik bendalir pengiraan (CFD) 3D bagi aliran bendalir kerja telah dilakukan mengguna pakai simulator SolidWorks Flow. Selain itu, kajian eksperimen telah dilaksanakan pada bangku ujian hidraulik KI-4815M dengan penderia tekanan SS302 serta sistem pemerolehan data berasaskan Arduino. Dapatan kajian menunjukkan bahawa pelaksanaan pendikit bola membantu mengurangkan turun naik tekanan dan beban dinamik dalam sistem hidraulik. Perbezaan antara keputusan CFD, simulasi Simulink, dan data eksperimen tidak melebihi 5.67% pada beban 700 N. Dapatan ini mengesahkan keberkesanan kaedah yang dicadangkan dalam meningkatkan kestabilan pemacu hidraulik.