Design and optimization of a novel throttling-inside-piston multi-stage hydraulic cylinder

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Abstract

In order to improve the performance of multi-stage cylinder to achieve rapid and steady extension, a novel throttlinginside-piston multi-stage hydraulic cylinder is proposed without changing physical size and piston working strokes of the traditional sequential multi-stage hydraulic cylinder. Based on internal structure optimal design and basic size parameter calculation, the mathematical model of the proposed throttling-inside-piston multi-stage hydraulic cylinder is studied using multi-rigid-body and impact-recovery dynamic theory. Then, the diameters of the orifices within the pistons are optimized using constraint optimization technique. Comparative simulation results show that the new type of throttlinginside-piston multi-stage hydraulic cylinder can significantly enhance the rapidity and steadiness for the erecting system.

Original languageEnglish
Article number15622904
JournalAdvances in Mechanical Engineering
Volume7
Issue number12
DOIs
StatePublished - Dec 2015

Keywords

  • Multi-stage hydraulic cylinder
  • erecting system
  • parameter optimization
  • throttling-inside-piston

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