Chen Yanyan,Li Ruixue,Jin Qinghua,et al. Research on precision analysis of finite element simplified modeling strategy for turntable framework[J]. Journal of Mechanical Strength,2026,48(7):176-182.
Chen Yanyan,Li Ruixue,Jin Qinghua,et al. Research on precision analysis of finite element simplified modeling strategy for turntable framework[J]. Journal of Mechanical Strength,2026,48(7):176-182.DOI: 10.16579/j.issn.1001.9669.2026.07.020.
Research on precision analysis of finite element simplified modeling strategy for turntable framework
To rapidly optimize and iterate the stiffness and dynamic characteristics of the main load-bearing frame during the early development stage of a flight simulation turntable
simplified modeling approaches for the turntable frame were investigated.
Methods
2
Firstly
the typical load-bearing O-shaped frame of a five-axis hardware-in-the-loop simulation turntable was taken as the research object
and consistency verification was carried out between the numerical results of the refined solid mesh model and test data. Using the computed results as the benchmark
finite element simplification modeling strategies for each key detailed structure of the frame were discussed. Finally
the influences of different combinations of simplification strategies on the modal analysis results of the frame were quantitatively analyzed
the rationality of these strategies was examined
and the optimal combination of simplification schemes was determined.
Results
2
The proposed simplified modeling method reduces the computation time to 1/7 of the original value (from 51 s to less than 7 s) while maintaining the analysis accuracy error within 8%. For the cylindrical structure at the load end and the thin-wall section of the thin-walled cylindrical structure
the simplification scheme with the minimum error is recommended
and the simplification method for stiffeners can be selected according to actual demands. Combining the determined simplification strategies with parametric modeling of the turntable frame effectively improves the design efficiency in the preliminary design phase.
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