{"title":"复合材料机翼静态气动弹性计算分析的 DG-VLM 框架","authors":"Dario Campagna , Vincenzo Gulizzi , Ivano Benedetti","doi":"10.1016/j.compstruct.2024.118697","DOIUrl":null,"url":null,"abstract":"<div><div>A computational framework for static aeroelastic analysis of composite laminated plates is proposed, whose novelty is the conjoined use of a structural discontinuous Galerkin (DG) formulation and an aerodynamic vortex lattice method (VLM), suitably coupled for the monolithic solution of the aeroelastic problem. The structural method is built on variable-order generalized kinematics, which allows the seamless adoption of either beam or plate modeling strategies, with on-demand order of polynomial approximation over the transverse and in-plane dimensions of the structural elements. The underlying DG formulation also simplifies the coupling between the structural and aerodynamic grids, thus providing a versatile tool for the aeroelastic analysis of either low or high aspect-ratio composite wings. Several numerical tests have been performed to assess the convergence features of the proposed framework as well as its accuracy with respect to available computational and experimental benchmark data. The obtained results confirm its robustness and highlight its potential for aeroelastic assessments in early aircraft conceptual design.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"353 ","pages":"Article 118697"},"PeriodicalIF":6.3000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A DG-VLM framework for computational static aeroelastic analysis of composite wings\",\"authors\":\"Dario Campagna , Vincenzo Gulizzi , Ivano Benedetti\",\"doi\":\"10.1016/j.compstruct.2024.118697\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A computational framework for static aeroelastic analysis of composite laminated plates is proposed, whose novelty is the conjoined use of a structural discontinuous Galerkin (DG) formulation and an aerodynamic vortex lattice method (VLM), suitably coupled for the monolithic solution of the aeroelastic problem. The structural method is built on variable-order generalized kinematics, which allows the seamless adoption of either beam or plate modeling strategies, with on-demand order of polynomial approximation over the transverse and in-plane dimensions of the structural elements. The underlying DG formulation also simplifies the coupling between the structural and aerodynamic grids, thus providing a versatile tool for the aeroelastic analysis of either low or high aspect-ratio composite wings. Several numerical tests have been performed to assess the convergence features of the proposed framework as well as its accuracy with respect to available computational and experimental benchmark data. The obtained results confirm its robustness and highlight its potential for aeroelastic assessments in early aircraft conceptual design.</div></div>\",\"PeriodicalId\":281,\"journal\":{\"name\":\"Composite Structures\",\"volume\":\"353 \",\"pages\":\"Article 118697\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2024-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composite Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0263822324008250\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composite Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263822324008250","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
A DG-VLM framework for computational static aeroelastic analysis of composite wings
A computational framework for static aeroelastic analysis of composite laminated plates is proposed, whose novelty is the conjoined use of a structural discontinuous Galerkin (DG) formulation and an aerodynamic vortex lattice method (VLM), suitably coupled for the monolithic solution of the aeroelastic problem. The structural method is built on variable-order generalized kinematics, which allows the seamless adoption of either beam or plate modeling strategies, with on-demand order of polynomial approximation over the transverse and in-plane dimensions of the structural elements. The underlying DG formulation also simplifies the coupling between the structural and aerodynamic grids, thus providing a versatile tool for the aeroelastic analysis of either low or high aspect-ratio composite wings. Several numerical tests have been performed to assess the convergence features of the proposed framework as well as its accuracy with respect to available computational and experimental benchmark data. The obtained results confirm its robustness and highlight its potential for aeroelastic assessments in early aircraft conceptual design.
期刊介绍:
The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials.
The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.