...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mechanical systems and signal processing >A simulation model of Gerotor pumps considering fluid-structure interaction effects: Formulation and validation
【24h】

A simulation model of Gerotor pumps considering fluid-structure interaction effects: Formulation and validation

机译：考虑流固耦合效应的Gerotor泵的仿真模型：公式化和验证

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Gerotors are compact, inexpensive and robust pumps generally used in hydraulic systems. Owing to their characteristic operation at low pressure (up to 30 bar), these units can be modelled using relatively simple tools considering only their fluid dynamics aspects. However, some commercially available Gerotors operate at higher pressures so that material deformation effects cannot be neglected under such conditions. This paper presents an omni-comprehensive simulation approach for Gerotor units that considers the fluid-structure interaction effects at the lateral lubricating gaps and related to the contacts between the rotors. The numerical tool consists of different submodels which allow the evaluation of the fluid dynamic features of the flow through the pump considering micro-motion effects of the rotors. This paper particularly details the novel aspects of the simulation approach, which is the introduction of submodels that account for fluid-structure interaction effects: the lateral lubricating gap models and the rotor contact models, both based on the solution of the Reynolds equation considering the deformation of the solid parts. For the model validation, a commercially available pump able to operate above 100 bar was tested at the authors' research center. The comparison between the simulation results and the experimental data clearly show the good accuracy of the model, in terms of volumetric flow and port pressure pulsation. In particular, the model allows predicting both the volumetric and the torque efficiency of the unit. Furthermore, the simulation results permit to interpret the reasons for instances of wear present in the unit.
机译：Gerotor是紧凑，便宜且坚固的泵，通常用于液压系统。由于其在低压（最高30 bar）下的特性运行，可以使用相对简单的工具对这些单元进行建模，而仅考虑其流体动力学方面。但是，一些市售的Gerotor在较高的压力下工作，因此在这种条件下不能忽略材料变形的影响。本文提出了一种用于齿轮转子单元的综合模拟方法，该方法考虑了在侧向润滑间隙处的流体-结构相互作用效应，并且与转子之间的接触有关。数值工具由不同的子模型组成，这些模型允许考虑转子的微动效应来评估流经泵的流体的流体动力学特征。本文特别详细介绍了模拟方法的新颖方面，即引入了考虑流体-结构相互作用影响的子模型：侧向润滑间隙模型和转子接触模型，均基于考虑了变形的雷诺方程的求解固体零件。为了进行模型验证，在作者的研究中心测试了可在100 bar以上运行的市售泵。仿真结果与实验数据之间的比较清楚地表明了该模型在体积流量和端口压力脉动方面的良好准确性。特别地，该模型允许预测单元的体积和扭矩效率。此外，仿真结果可以解释单元中出现磨损实例的原因。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号