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Computer aided synthesis method for the configuration of the mechanical arm of face-shovel hydraulic excavator based on contracted graph and open loop kinematic chains

Ding, Jisong ; Li, Xiaoxiong ; Ding, Huafeng ; Yang, Wenjian

Mechanism and machine theory, 2024-07, Vol.197, Article 105627 [Periódico revisado por pares]

Elsevier Ltd

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  • Título:
    Computer aided synthesis method for the configuration of the mechanical arm of face-shovel hydraulic excavator based on contracted graph and open loop kinematic chains
  • Autor: Ding, Jisong ; Li, Xiaoxiong ; Ding, Huafeng ; Yang, Wenjian
  • Assuntos: Computer aided ; Configuration synthesis ; Face-shovel excavator ; Plane multi-loop mechanism ; Topological graph
  • É parte de: Mechanism and machine theory, 2024-07, Vol.197, Article 105627
  • Descrição: •A new computer aided design method for excavator MA mechanism is proposed.•A method for automatically detecting the interference of the active pair is proposed.•The positions of the base and end effector are directly determined during the design.•Complete MA configuration synthesis results are provided. The design of the mechanical arm (MA) is one of the main factors that determine the performance of a face-shovel hydraulic excavator. In this paper, a new design method for the excavator MA mechanism is proposed. By analyzing the existing excavator MA configuration and simplifying it to the contracted graph (CG) topology graph, the two-dimensional points on all edges of the CG are synthesized to meet the comprehensive rules of the excavator working mechanism. Firstly, an international typical excavator's MA is introduced, and the MA topology is simplified into the CG and the open loop kinematic chains (KCs). Then, by analyzing the structural characteristics of the MA, the insertion rules of the components on the edge of the MA topology graph are established. Secondly, according to the rules, several CGs and basic components are combined to obtain a preliminary excavator MA. Finally, the MAs are judged to remove the configuration scheme that does not meet the excavator function. As a result, 364 excavator MA configuration schemes were synthesized, including some existing excavator configurations and a large number of new models. Moreover, this method can also be used for the configuration synthesis of other planar multi-loop multi-link mechanisms.
  • Editor: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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