Research on the Optimization of Automobile Plastic Front Frame Structure
Plastic instead of steel technology is one of the important means of automotive lightweighting, which can greatly reduce the weight of the car while ensuring the same performance of the product. For the lightweighting of the automotive all-plastic front-end frame structure, the initial structural de...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2022-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2340342 |
| _version_ | 1811183272477065216 |
|---|---|
| author | Lu Wang Lingfeng Tang Peng Wu Jiaqi CHEN |
| author_facet | Lu Wang Lingfeng Tang Peng Wu Jiaqi CHEN |
| author_sort | Lu Wang |
| collection | DOAJ |
| description | Plastic instead of steel technology is one of the important means of automotive lightweighting, which can greatly reduce the weight of the car while ensuring the same performance of the product. For the lightweighting of the automotive all-plastic front-end frame structure, the initial structural design of the front-end frame was carried out by HyperMesh; based on the compromise planning method and entropy weight method, the compromise planning method with weight coefficients was used to unify the planning of each subobjective to obtain the integrated response function, and the minimization of the integrated response function was the objective. The main considerations were the lock limit crash load, the cushion area load, and the pedestrian protection impact load under typical operating conditions, the shape optimization, and topology optimization, respectively. The mass of the sheet metal front-end frame was reduced from the original 10.5 kg to 6.8 kg—a weight reduction of 35.24%. The front-end frame was extracted and the mid-plane was repaired by HyperMesh, the complete mid-plane was meshed, loads and properties were added to the mesh, the front-end frame was subjected to static and modal analysis in the OptiStruct module, and the stiffness and intrinsic frequency were verified. The results show that the smallest first-order mode in the modal analysis is 57.38 Hz, which is much larger than the 30 Hz required before design. The fatigue analysis of the front-end frame was then performed using N-code to derive the damage results; it is concluded that its life is 6122 s, much larger than the specified 1200 s. Through the verification of the relevant resonance test, it is judged that the performance of the test part meets the actual requirements comprehensively by checking the status after the test. |
| first_indexed | 2024-04-11T09:45:17Z |
| format | Article |
| id | doaj.art-4b03548a682f43c3b9722792de40c527 |
| institution | Directory Open Access Journal |
| issn | 1687-8442 |
| language | English |
| last_indexed | 2024-04-11T09:45:17Z |
| publishDate | 2022-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj.art-4b03548a682f43c3b9722792de40c5272022-12-22T04:31:06ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/2340342Research on the Optimization of Automobile Plastic Front Frame StructureLu Wang0Lingfeng Tang1Peng Wu2Jiaqi CHEN3School of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringPlastic instead of steel technology is one of the important means of automotive lightweighting, which can greatly reduce the weight of the car while ensuring the same performance of the product. For the lightweighting of the automotive all-plastic front-end frame structure, the initial structural design of the front-end frame was carried out by HyperMesh; based on the compromise planning method and entropy weight method, the compromise planning method with weight coefficients was used to unify the planning of each subobjective to obtain the integrated response function, and the minimization of the integrated response function was the objective. The main considerations were the lock limit crash load, the cushion area load, and the pedestrian protection impact load under typical operating conditions, the shape optimization, and topology optimization, respectively. The mass of the sheet metal front-end frame was reduced from the original 10.5 kg to 6.8 kg—a weight reduction of 35.24%. The front-end frame was extracted and the mid-plane was repaired by HyperMesh, the complete mid-plane was meshed, loads and properties were added to the mesh, the front-end frame was subjected to static and modal analysis in the OptiStruct module, and the stiffness and intrinsic frequency were verified. The results show that the smallest first-order mode in the modal analysis is 57.38 Hz, which is much larger than the 30 Hz required before design. The fatigue analysis of the front-end frame was then performed using N-code to derive the damage results; it is concluded that its life is 6122 s, much larger than the specified 1200 s. Through the verification of the relevant resonance test, it is judged that the performance of the test part meets the actual requirements comprehensively by checking the status after the test.http://dx.doi.org/10.1155/2022/2340342 |
| spellingShingle | Lu Wang Lingfeng Tang Peng Wu Jiaqi CHEN Research on the Optimization of Automobile Plastic Front Frame Structure Advances in Materials Science and Engineering |
| title | Research on the Optimization of Automobile Plastic Front Frame Structure |
| title_full | Research on the Optimization of Automobile Plastic Front Frame Structure |
| title_fullStr | Research on the Optimization of Automobile Plastic Front Frame Structure |
| title_full_unstemmed | Research on the Optimization of Automobile Plastic Front Frame Structure |
| title_short | Research on the Optimization of Automobile Plastic Front Frame Structure |
| title_sort | research on the optimization of automobile plastic front frame structure |
| url | http://dx.doi.org/10.1155/2022/2340342 |
| work_keys_str_mv | AT luwang researchontheoptimizationofautomobileplasticfrontframestructure AT lingfengtang researchontheoptimizationofautomobileplasticfrontframestructure AT pengwu researchontheoptimizationofautomobileplasticfrontframestructure AT jiaqichen researchontheoptimizationofautomobileplasticfrontframestructure |