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Structural Analysis and Optimization of Heavy Vehicle Chassis Using Aluminium P100/6061 Al and Al GA 7-230 MMC. Processes (Basel) 2022. [DOI: 10.3390/pr10020320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A chassis is one of the vital parts of a heavy motor vehicle, which provides rigidity to the vehicle and improves structural stability and rigidity for accurate handling. The design and material of a chassis structure significantly affects its strength and weight. Optimization techniques can be used in systematic design improvement of chassis to meet industry requirements. The current research is intended to optimize the design of chassis using the Box–Behnken design scheme and the material tested is P100/6061 Al and Al GA 7-230 MMC. Different design points were generated using the design of the experiments. Equivalent stress, deformation and mass were evaluated for each design point. The variable selected for optimization using the Box–Behnken scheme was cross member width. The CAD modelling and FE simulation of the heavy motor vehicle chassis were conducted using ANSYS software. From the optimization conducted on the chassis design, response surface plots of equivalent stress, deformation and mass were generated, which enabled to determine the range of dimensions for which these parameters are maximum or minimum. The sensitivity plots of different variables were generated, which has shown that cross member 2’s width has a maximum effect on equivalent stress and cross member 3’s width has a minimum effect on equivalent stress, whereas for total deformation, cross member 3 shows the maximum sensitivity percentage, which signifies that cross member 3 has the maximum effect on total deformation, and vice versa. The use of the aluminium metal matrix composites P100/6061 Al and Al GA 7-230 MMC aided to reduce the weight of the chassis by 68% and 70%, respectively, without much reduction in the strength of the chassis.
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A critical review on the biomechanical study of cervical interbody fusion cage. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2021. [DOI: 10.1016/j.medntd.2021.100070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Acosta Santamaría VA, Daniel G, Perrin D, Albertini JN, Rosset E, Avril S. Model reduction methodology for computational simulations of endovascular repair. Comput Methods Biomech Biomed Engin 2018; 21:139-148. [DOI: 10.1080/10255842.2018.1427740] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- V. A. Acosta Santamaría
- SaInBioSE, INSERM, U1059, Saint Etienne, France
- SaInBioSE, Mines Saint-Etienne, Saint Etienne, France
- SaInBioSE, Université de Lyon, Saint Etienne, France
| | - G. Daniel
- SaInBioSE, INSERM, U1059, Saint Etienne, France
- SaInBioSE, Mines Saint-Etienne, Saint Etienne, France
- SaInBioSE, Université de Lyon, Saint Etienne, France
- Service de Chirurgie Vasculaire, Centre Hospitalier Régional Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - D. Perrin
- SaInBioSE, INSERM, U1059, Saint Etienne, France
- SaInBioSE, Mines Saint-Etienne, Saint Etienne, France
- SaInBioSE, Université de Lyon, Saint Etienne, France
| | - J. N. Albertini
- SaInBioSE, INSERM, U1059, Saint Etienne, France
- SaInBioSE, Université de Lyon, Saint Etienne, France
- Service de Chirurgie Vasculaire, Centre Hospitalier Universitaire de Saint-Etienne, Saint Etienne, France
| | - E. Rosset
- SaInBioSE, INSERM, U1059, Saint Etienne, France
- Service de Chirurgie Vasculaire, Centre Hospitalier Régional Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - S. Avril
- SaInBioSE, INSERM, U1059, Saint Etienne, France
- SaInBioSE, Mines Saint-Etienne, Saint Etienne, France
- SaInBioSE, Université de Lyon, Saint Etienne, France
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Lee CH, Hsu CC, Chaing L. An Optimization Study for the Bone-Implant Interface Performance of Lumbar Vertebral Body Cages Using a Neurogenetic Algorithm and Verification Experiment. J Med Biol Eng 2017. [DOI: 10.1007/s40846-017-0306-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Huang CK, Wu J, Cheng KY, Pan LK. Optimization of imaging parameters for SPECT scans of [99mTc]TRODAT-1 using Taguchi analysis. PLoS One 2015; 10:e0113817. [PMID: 25790100 PMCID: PMC4366084 DOI: 10.1371/journal.pone.0113817] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 10/31/2014] [Indexed: 11/19/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disease characterized by progressive loss of dopaminergic neurons in the basal ganglia. Single photon emission computed tomography (SPECT) scans using [99mTc]TRODAT-1 can image dopamine transporters and provide valuable diagnostic information of PD. In this study, we optimized the scanning parameters for [99mTc]TRODAT-1/SPECT using the Taguchi analysis to improve image quality. SPECT scans were performed on forty-five healthy volunteers according to an L9 orthogonal array. Three parameters were considered, including the injection activity, uptake duration, and acquisition time per projection. The signal-to-noise ratio (SNR) was calculated from the striatum/occipital activity ratio as an image quality index. Ten healthy subjects and fifteen PD patients were used to verify the optimal parameters. The estimated optimal parameters were 962 MBq for [99mTc]TRODAT-1 injection, 260 min for uptake duration, and 60 s/projection for data acquisition. The uptake duration and time per projection were the two dominant factors which had an F-value of 18.638 (38%) and 25.933 (53%), respectively. Strong cross interactions existed between the injection activity/uptake duration and injection activity/time per projection. Therefore, under the consideration of as low as reasonably achievable (ALARA) for radiation protection, we can decrease the injection activity to 740 MBq. The image quality remains almost the same for clinical applications.
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Affiliation(s)
- Cheng-Kai Huang
- Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung 406, Taiwan
| | - Jay Wu
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan
- * E-mail:
| | - Kai-Yuan Cheng
- Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung 406, Taiwan
| | - Lung-Kwang Pan
- Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung 406, Taiwan
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