Characteristic Analysis of Seal Type Hydraulic Dumper Based on AMESim

摘要

Seal type hydraulic dumper is frequently used in helicopter rotor system to prevent ground resonance and air resonance. In this paper, we modeled the seal type hydraulic dumper with the Hydraulic Component Design database in AMESim and analyzed the impact of driving frequency and gas content of the hydraulic oil. The area surrounded by the power diagram extends with the increase of the driving frequency and shrinks with the increase of the gas content in hydraulic oil. These conclusions may do benefit to the design and selection of hydraulic damper.