{"title":"Report on the rehabilitation of the roof structure over the tennis stadium at Hamburg Rothenbaum","authors":"A. Rein","doi":"10.23967/membranes.2021.047","DOIUrl":"https://doi.org/10.23967/membranes.2021.047","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123444015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development and Analysis of Pre-Stressed Cable Roof with Stiffening Girder and Polymer Membrane Cladding","authors":"V. Mikhailov, A. Chesnokov, I. Dolmatov","doi":"10.23967/membranes.2021.065","DOIUrl":"https://doi.org/10.23967/membranes.2021.065","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123627167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Faraj, B. Popławski, D. Gabryel, T. Kowalski, K. Hinc
{"title":"Development of a new type of inflatable structure – the adaptive rescue cushion","authors":"R. Faraj, B. Popławski, D. Gabryel, T. Kowalski, K. Hinc","doi":"10.23967/membranes.2021.027","DOIUrl":"https://doi.org/10.23967/membranes.2021.027","url":null,"abstract":"The contribution concerns a special type of an inflatable structure, which can be classified within the group of airbag systems. Airbags are often applied in different types of protective structures and systems, their most common application is crash protection of people [1]. Besides automotive industry the airbags are considered for such systems as offshore turbines [2], unmanned aerial vehicles [3] or even Martian landers [4]. Another impressive application of them and simultaneously the main subject of this contribution is evacuation of people from heights. In such application airbags are used as so-called rescue cushions, which are operated by fire brigades in case the conventional evacuation is unavailable. Although relatively high number of patents can be found, the scientific literature in this field is very limited. Nevertheless, importance of the problem and appearing accidents motivated the authors to start the research on development of a new, safer type of rescue cushion system, which will guarantee high performance and adaptive capabilities. The preliminary study [5] revealed possibility of significant improvement of the system response for a range of excitation conditions. Further research is conducted in order to provide a solution ensuring successful adaptation of the rescue cushion to the evacuation height, as well as the mass of landing person. The general design methodology and objective of optimization are presented within exemplary case study. Constraints resulting from legal, functional and economic requirements are discussed in detail. Main challenges and directions of further research are indicated.","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121774712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Bucher, Máté Péntek, K. Sautter, R. Wüchner, K. Bletzinger
{"title":"Detailed FSI modeling and HPC simulation of the Olympic stadium roof in Munich under wind loading","authors":"P. Bucher, Máté Péntek, K. Sautter, R. Wüchner, K. Bletzinger","doi":"10.23967/membranes.2021.039","DOIUrl":"https://doi.org/10.23967/membranes.2021.039","url":null,"abstract":"The Olympic stadium in Munich was built for the Olympic Games in 1972. Its architecture was inspired by freefrom shapes and led to the construction of ”hanging” cable nets covered with acrylic glass plates, which constitute the main part of the roof. The main structure additionally includes pylons, masts, and cables to hold up this complex geometry. Details of the construction are described in [1]. The main focus of this work is to improve the numerical models and showcase the simulation potential for such a complex geometry, with a specific focus on the realistic modeling of the wind field (atmospheric boundary layer flow and consideration of some crucial elements of topography) as well as fluid-structure interaction (FSI, i.e. enabling the interaction between the deformations of the structure and the wind forces adapting to these changes). For the fluid domain, only the roof is explicitly captured by the mesh, in addition to the chosen topography elements. Other parts of the supporting structure are deemed to have a minimal role in the aerodynamics. Careful considerations are taken regarding the modeled geometry of the structure, these being based upon [2], data extracted from a Google Earth model, on-site measurements, and city archives. This shape represents the target geometry under self-weight and prestress. The membrane, as well as cable elements (modeled as trusses, being purely under tension), need a detailed investigation such that the correct prestress values can be determined. Initial values are based upon archive and publication data ([1]). Optimization algorithms are used in a sequential way to determine the actual necessary prestress (on an element level in the FEM context). This is to be seen as an inverse of the fromfinding procedure. An","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123287003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SIRQUE: a new permanent circus tent with insulated double layer membrane in Nexon - France","authors":"N. Pauli","doi":"10.23967/membranes.2021.022","DOIUrl":"https://doi.org/10.23967/membranes.2021.022","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131896628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulating the Bending Behavior of Inflatable Drop-Stitch Fabric Panels","authors":"W. Davids","doi":"10.23967/membranes.2021.060","DOIUrl":"https://doi.org/10.23967/membranes.2021.060","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133837375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Beyond NURBS – Efficient CAD-integrated isogeometric analysis","authors":"T. Oberbichler, R. Wüchner, K. Bletzinger","doi":"10.23967/membranes.2021.021","DOIUrl":"https://doi.org/10.23967/membranes.2021.021","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132886123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Wall Modeled Immersed Boundary Lattice Boltzmann Method for the Fluid-Structure Interaction of Ram-Air Parachutes and Paragliders","authors":"T. Lolies, N. Gourdain, M. Charlotte, H. Belloc","doi":"10.23967/membranes.2021.037","DOIUrl":"https://doi.org/10.23967/membranes.2021.037","url":null,"abstract":"Ram-Air wings, or parafoils, are now used in various applications such as autonomous aerial delivery systems, kiteboats or paragliders. Developing reliable simulation tools to design these wings is a challenging task. Indeed, the structural integrity is not ensured by stiff mechanical parts within the canopy, but by the aerodynamic forces acting on itself. Fathoming such problems requires the use of fluid-structure interactions (FSI), where the deformation of the solid membrane forces the surrounding fluid to move accordingly, which in turn adjusts the pressure and friction forces on the solid in an iterative scheme. The immersed boundary method (IBM), a well-suited technique for FSI with large deformations, is used with a cartesian grid. Moreover, a highly efficient FSI framework is obtained coupling the IBM with the lattice-Boltzmann method (LBM), as presented in [1]. The LBM proved to be one of the most efficient and promising strategy to perform large eddy simulations of weakly compressible flows [2]. A major challenge when using a carte-sian grid without dynamic remeshing procedures is that the entire geometry and its displacements need to be encapsulated in a large volume of constant mesh size. Therefore resolving the strong gradients pertaining to the turbulent boundary layer would involve unacceptable simulation costs. To deal with this issue, an IBM specific wall model based on an integral boundary layer is developed. Using a conventional serial staggered procedure, the fluid solver is coupled to a mass-spring damper system, a suitable cost-efficient alternative to finite element methods for largely deformable non linear thin membranes [3]. An aerodynamic validation test case","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133646278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fluid-structure Interaction of a 3D Finn Dinghy Sail Membrane with Surrounding Viscous Air Flow","authors":"C. Corte","doi":"10.23967/membranes.2021.023","DOIUrl":"https://doi.org/10.23967/membranes.2021.023","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130283031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Replacement of the retractable roof at the Bad Hersfeld monastery","authors":"W. Froehlich","doi":"10.23967/membranes.2021.040","DOIUrl":"https://doi.org/10.23967/membranes.2021.040","url":null,"abstract":"","PeriodicalId":395358,"journal":{"name":"10th edition of the conference on Textile Composites and Inflatable Structures","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129329883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}