RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD
The variable density method has become an effective method to solve the topology optimization problem of continuum structure due to its advantages such as few design variables and high efficiency. Aiming at the problem of the gray unit and sawtooth boundary in the optimization process of the variabl...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.04.013 |
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| _version_ | 1841536005977407488 |
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| author | ZHANG GuoFeng XU Lei WANG Xin XIAO NaiXin |
| author_facet | ZHANG GuoFeng XU Lei WANG Xin XIAO NaiXin |
| author_sort | ZHANG GuoFeng |
| collection | DOAJ |
| description | The variable density method has become an effective method to solve the topology optimization problem of continuum structure due to its advantages such as few design variables and high efficiency. Aiming at the problem of the gray unit and sawtooth boundary in the optimization process of the variable density method, a post-processing method of variable density method for continuum topology optimization is proposed in this paper. The topology optimization model is binarized and the sawtooth shape boundary line is extracted, and the target discrete corner point set is obtained, used as the sample point for curve fitting to obtain the optimized structure with smooth boundary. Experimental results show that this method effectively avoids the zigzag boundary and intermediate density of the optimization result, and improves the manufacturability of the optimization result under the premise of ensuring that the structural performance is within the allowable range. |
| format | Article |
| id | doaj-art-38ec0b117572475485d01e16b657cb0f |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-38ec0b117572475485d01e16b657cb0f2025-01-15T02:23:57ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-014484585129913727RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHODZHANG GuoFengXU LeiWANG XinXIAO NaiXinThe variable density method has become an effective method to solve the topology optimization problem of continuum structure due to its advantages such as few design variables and high efficiency. Aiming at the problem of the gray unit and sawtooth boundary in the optimization process of the variable density method, a post-processing method of variable density method for continuum topology optimization is proposed in this paper. The topology optimization model is binarized and the sawtooth shape boundary line is extracted, and the target discrete corner point set is obtained, used as the sample point for curve fitting to obtain the optimized structure with smooth boundary. Experimental results show that this method effectively avoids the zigzag boundary and intermediate density of the optimization result, and improves the manufacturability of the optimization result under the premise of ensuring that the structural performance is within the allowable range.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.04.013ContinuumVariable density methodPost-processingCurve fitting |
| spellingShingle | ZHANG GuoFeng XU Lei WANG Xin XIAO NaiXin RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD Jixie qiangdu Continuum Variable density method Post-processing Curve fitting |
| title | RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD |
| title_full | RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD |
| title_fullStr | RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD |
| title_full_unstemmed | RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD |
| title_short | RESEARCH ON POST-PROCESSING METHOD OF CONTINUUM STRUCTURE TOPOLOGY OPTIMIZATION BASED ON VARIABLE DENSITY METHOD |
| title_sort | research on post processing method of continuum structure topology optimization based on variable density method |
| topic | Continuum Variable density method Post-processing Curve fitting |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.04.013 |
| work_keys_str_mv | AT zhangguofeng researchonpostprocessingmethodofcontinuumstructuretopologyoptimizationbasedonvariabledensitymethod AT xulei researchonpostprocessingmethodofcontinuumstructuretopologyoptimizationbasedonvariabledensitymethod AT wangxin researchonpostprocessingmethodofcontinuumstructuretopologyoptimizationbasedonvariabledensitymethod AT xiaonaixin researchonpostprocessingmethodofcontinuumstructuretopologyoptimizationbasedonvariabledensitymethod |