Thermal-hydraulic modeling and simulation of high power hydro-motor

Li, Yonglin; Su, Xinbing; Xu, Haojun; Li, Dawei

doi:10.1109/asc-icsc.2008.4675479

Cited by 4 publications

(2 citation statements)

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“…The another method to build thermal-hydraulic models of hydraulic systems was by lumped-parameter method [8]. The lumped-parameter method had been widely applied to build thermal-hydraulic models of hydraulic components, such as accumulators [9], hydraulic motors [10] and piston pumps [11,12]. The characteristic of the two methods could be summarized as below:…”

Section: Introductionmentioning

confidence: 99%

“…In [4], a thermal-hydraulic model of double press axial piston pump was established in AMESim, and a thermal analysis was made to compare the temperature-rise between the double press axial piston pump and constant pressure axial piston pump. In [5], the thermalhydraulic modular modeling and simulation was implemented by Dymola. In [6,7], heat generation in EHA was analysed by HOPSAN.…”

Section: Introductionmentioning

confidence: 99%

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Thermal-hydraulic Modeling and Simulation of the Hydraulic System based on the Electro-hydrostatic Actuator

Lü

et al. 2014

Procedia Engineering

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Electro-hydrostatic actuator (EHA) was a typical power-by-wire (PBW) actuator, which was widely-used in large commercial aircrafts, such as Airbus A380. The electro-hydrostatic actuator(EHA) had the advantages of small sizes, light weight, high power density, high reliability and maintainability. With the application of EHA in large commercial airplanes, the airworthiness certification of EHA became an new problem. The precondition of the airworthiness certification of EHA was to understand its operating principle and characteristic. Because of no centralized hydraulic oil tank and short cycle oil circuit, the temperature-rise of the hydraulic system in EHA always kept high during operation. Therefore, it was important to build the thermal-hydraulic models of the hydraulic system in EHA, and to do the thermal analysis of the EHA by this model. In this paper, a lumped-parameter thermalhydraulic model of the hydraulic part in EHA was proposed. The model was built based on the detailed analysis of the heat transfer of the hydraulic part in EHA. By the simulation of a practical system and the comparison with the traditional hydraulic system, the accuracy and practicality of this model was verified.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%