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Hedmer M, Lovén K, Martinsson J, Messing ME, Gudmundsson A, Pagels J. OUP accepted manuscript. Ann Work Expo Health 2022; 66:878-894. [PMID: 35297480 PMCID: PMC9357347 DOI: 10.1093/annweh/wxac015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 10/27/2021] [Accepted: 02/18/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Maria Hedmer
- Author to whom correspondence should be addressed. Tel: +46-46173193; e-mail:
| | - Karin Lovén
- NanoLund, Center for Nanoscience, Lund University, 22100 Lund, Sweden
- Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, SE-22100 Lund, Sweden
| | - Johan Martinsson
- Medical Radiation Physics, Department of Translational Medicine, Lund University, SE-22100 Lund, Sweden
| | - Maria E Messing
- NanoLund, Center for Nanoscience, Lund University, 22100 Lund, Sweden
- Solid State Physics, Department of Physics, Lund University, SE-22100 Lund, Sweden
| | - Anders Gudmundsson
- NanoLund, Center for Nanoscience, Lund University, 22100 Lund, Sweden
- Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, SE-22100 Lund, Sweden
| | - Joakim Pagels
- NanoLund, Center for Nanoscience, Lund University, 22100 Lund, Sweden
- Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, SE-22100 Lund, Sweden
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Dynamic Performance Optimization of Circular Sawing Machine Gearbox. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9204458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To optimize the rigidity and dynamic mechanical properties of a sawing machine and improve its processing quality and stability, a design method for the sawing machine’s gearbox was proposed. First, a lightweight design of the gearbox was realized by topology optimization. Second, the sensitivity of different design variables of the new gearbox was determined via sensitivity analysis of the objective function. Finally, multi-objective optimization was used to obtain the optimal solution for the gearbox. Considering the complexity of the internal structure of the gearbox assembly and the accuracy of the numerical calculation process, a modeling method with mass points was proposed. A comparison between the numerical calculation results and the operation mode analysis revealed that the former was accurate and can be applied to the verification of the optimized gearbox. By optimizing the vibration signals before and after, and the analysis of the end face quality of the workpiece, the results revealed that the optimized gearbox has a significantly reduced amplitude under various operating conditions. In addition, the vibration stability was improved, and the end face quality of the workpiece was significantly enhanced compared to that before optimization. This study serves as a theoretical reference for multi-body dynamics modeling and optimization of machine tools, and also outlines technical solutions for high-speed stable cutting with sawing machines.
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