Abstract
The atmospheric cutterhead is a new type of cutterhead with high technical difficulty. Compared with the conventional cutterhead, the spatial structure of the atmospheric cutterhead is more complicated, and a mature design theory has not yet been formed. This paper presents an atmospheric cutterhead design method for slurry shield machines. The method was divided into three steps: (i) design load analysis; (ii) multiobjective topology optimization; and (iii) evaluation and selection of cutterhead structures. Based on topology optimization theory, four types of cutterhead structures with different numbers of radial arms are obtained. The performance of the cutterhead was evaluated by stress, deformation, vibration mode, opening situation and space complexity, and the five-radial arm cutterhead was determined to be the best solution. Analysing the actual tunnelling parameter data shows good engineering adaptability. This paper provides a reference for the optimal design of the atmospheric cutterhead of slurry shield machine.
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Acknowledgments
This work was supported by the Science and Technology Major Project of Hunan Province, China (Granted No. 2014FJ1002), Postgraduate Scientific Research Innovation Project of Hunan Province (Granted No. CX20210211) and Independent Exploration and Innovation Program of Central South University (Granted No. 2021zzts0135).
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Feixiang Liu was born in Xiangyin Hunan Province in 1963. He graduated from Southwest Jiaotong University in 1983, majored in Engineering Machinery with a Bachelor’s degree. He is a Senior Engineer. And his research interests are in the development of planning of intelligent equipment for tunnel construction.
Qingyang Wang is a Ph.D. Student in Mechanical and Electrical Engineering, Central South University, Changsha, China. He received his M.S. in Mechanical Engineering from Ocean University of China in 2019. His research interests include structural design, numerical analysis for design, and simulation of mechanical systems.
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Liu, F., Wang, Q., Ji, Z. et al. Performance assessment and structural design of the atmospheric cutterhead of slurry shield machine. J Mech Sci Technol 36, 5611–5624 (2022). https://doi.org/10.1007/s12206-022-1024-7
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DOI: https://doi.org/10.1007/s12206-022-1024-7