Theoretical study of throttle valve system operation in the hydropneumatic shock absorber of the transport and technological machinery undercarriage

Repin, Sergei; Vasileva, Polina; Evtykov, Stanislav; Maksimov, Sergei; Ruchkina, Irina; Eremeev, A. E.

doi:10.1016/j.trpro.2021.09.085

Cited by 4 publications

(2 citation statements)

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“…In this paper, we investigated the impact of the damping hole diameter on suspension damping characteristics and determined the optimal damping hole diameter under both no-load and full-load conditions by introducing comprehensive evaluation criteria. Our study utilized a test bench to analyze the influence of the damping hole diameter on suspension output characteristics, aligning with previous research findings [3,4]. However, unlike other studies, which typically discuss the optimal damping aperture range under a single working condition [16], or only outline the variation trend of damping force with aperture [14], our paper introduced a novel approach.…”

Section: Discussionmentioning

confidence: 56%

“…Damping characteristics play a crucial role as a performance indicator for hydro-pneumatic suspension systems. Their nonlinear features are particularly well suited to meet the requirements of most construction vehicles [2,3]. As a result, the analysis and research on the damping characteristics of these suspension systems hold great significance and application value.…”

Section: Introductionmentioning

confidence: 99%

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Research on Damping Hole Optimization of Hydro-Pneumatic Suspension for Mining Trucks under Variable Load Conditions

Zhu,

Zhao,

Zhou

et al. 2024

Actuators

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The hydro-pneumatic suspension, known for enhancing vehicle ride comfort and stability, finds widespread use in engineering vehicles. Presently, the majority of mining trucks employ hydro-pneumatic suspension with a fixed damping hole, underscoring the critical importance of selecting appropriate damping hole parameters. Initially, an equilibrium mathematical model of the ¼ hydro-pneumatic suspension is established, and the influencing factors of the damping characteristics are analyzed. Subsequently, the simulation model and experimental bench for the hydro-pneumatic suspension are constructed. Sinusoidal signals with different frequencies and amplitudes serve as the excitation signals to analyze the variation trend of the force on the rod with displacement changes. The simulation and experimental results demonstrate a high degree of consistency, validating the rationality and validity of the simulation model. Building upon this foundation, various damping apertures are then selected to study the damping characteristics of the hydro-pneumatic suspension. The research indicates that as the damping aperture increases, the setting time of the hydro-pneumatic suspension system after excitation extends, accompanied by a decrease in the acceleration overshoot. As a result, a comprehensive evaluation index is developed, considering various factors, such as different weight setting times and peak longitudinal accelerations to assess the ride comfort of the suspension. This approach is then employed to determine the optimal damping aperture under both full-load and no-load conditions. The findings of this research offer valuable insights for the development of adaptive variable damping hydraulic suspensions, especially under variable load conditions.

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Section: Discussionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%