An extended machining error propagation network model for small-batch machining process control of aircraft landing gear parts

The complex structure and small-batch nature of aircraft landing gear parts lead to complex machining error propagation mechanism and manufacturing complexity. An Extended Machining Error Propagation Network model is presented to quantitatively analyze the complex coupling relationship in the Small-batch Multistage Machining Process of aircraft landing gear parts. Firstly, to depict the coupling relationship quantitatively, the Quality Features are defined to describe the machining precision information of Machining Form Features, and the State Elements are defined to describe the running state information of Machining Elements. Then, Machining Form Features, Machining Elements, Quality Features, and State Elements are identified as different network nodes, and the coupling relationships (such as evolving, locating, machining, and attribute) among these nodes are mapped into network edges. Based on the in-process measuring and sensing data of each machining stage, the topological and physical metrics of the network are explored to analyze the error propagation characteristics. Finally, the machining process of an outer cylinder part from aircraft landing gear is studied to verify the proposed methods.


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  • Accession Number: 01644515
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 6 2017 11:41AM