| Hydraulic tubes play an important role in various fields such as the aerospaceindustry. In order to guarantee their high reliability and efficiency, the analysis on theirvibration is an essential process. However, the present mode of tubing design can hardlymake CAD software’ functionality combine with CAE software’ well. Besides, thecomplication of CAE software requires tubing designers to have systematic knowledgeof finite element method and more experienced operation skill of CAE. In response tothis situation, this thesis researches the key technologies of the secondary developmentof CAD and CAE software for hydraulic tubes design and analysis, develops a specialstructural analysis system which integrates CAD and CAE, and realizes the automationin the structural analysis on hydraulic tubes.Firstly, based on the feasibility of secondary development of CATIA, theapplication and development techniques of the tubing design module have been studied.By the automation technique, the parameters of the components in tube systems havebeen extracted. Thus the foundation for building finite element modes is laid.Secondly, the APDL programming technique of ANSYS has been researched indepth. By programming effective ANSYS macro files, the procedures of building finiteelement models, simulation analysis and post-processing have been achieved in aparametric way.Finally, by programming VB codes, CATIA and ANSYS are integrated together,and a simulation analysis software platform for the vibration of hydraulic tubes isachieved. In addition, the modal analysis, transient analysis and spectrum analysis of anexperimental hydraulic tube are carried out by this simulation system. By checking theanalysis results and contrasting them with the test dates, the effectiveness of thissimulation system is confirmed. |
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