Parametric Modeling of Aircraft Families for Load Calculation Support

Cerulli, Chiara; Meijer, Peter; Tooren, Michel van; Hofstee, J.

doi:10.2514/6.2004-2019

Cited by 13 publications

(10 citation statements)

References 1 publication

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“…A change in thickness in the radial direction, determined by function (2) for certain values of parameter n≤0, is represented in Fig. 3.…”

Section: Methods For Designing the Shape Of Uniformly Stressed Nodementioning

confidence: 99%

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Optimization of uniformly stressed structures of cylindrical tanks in CAD

Saveleva

Khomyak

Stanovska

et al. 2016

EEJET

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“…A change in thickness in the radial direction, determined by function (2) for certain values of parameter n≤0, is represented in Fig. 3.…”

Section: Methods For Designing the Shape Of Uniformly Stressed Nodementioning

confidence: 99%

“…It is manifested most vividly in the parts, intended for transport objects hence, for example, there are complex shapes of the parts of aircraft and rocket fuselage [2] and automobile bodies [3]. Reliability of the critical parts -turbine blades [4] and of many others -depends on the correctly calculated shape.…”

Section: Literature Analysis and Problem Statementmentioning

confidence: 99%

Optimization of uniformly stressed structures of cylindrical tanks in CAD

Saveleva

Khomyak

Stanovska

et al. 2016

EEJET

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“…Sexstone 3 introduced ELAPS, an equivalent-plate modeling tool, into conceptual trade studies and found it to be an efficient means to generate mass properties at an early stage. Röhl 4 demonstrated the use of automatically-generated finite element models for optimization of a high-speed civil transport, while Cerulli, et al 5 have automated this process for a particular family of Airbus transports. The objective of the present effort is to move towards development of automatic structural layout and finite element model-generation algorithms suitable for designing a wide variety of aircraft families, including revolutionary concepts.…”

Section: Conceptual and Preliminary Design Processesmentioning

confidence: 99%

Automatic Aircraft Structural Topology Generation for Multidisciplinary Optimization and Weight Estimation

Sensmeier¹,

Samareh

2005

46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

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An approach is proposed for the application of rapid generation of moderate-fidelity structural finite element models of air vehicle structures to allow more accurate weight estimation earlier in the vehicle design process. This should help to rapidly assess many structural layouts before the start of the preliminary design phase and eliminate weight penalties imposed when actual structure weights exceed those estimated during conceptual design. By defining the structural topology in a fully parametric manner, the structure can be mapped to arbitrary vehicle configurations being considered during conceptual design optimization. A demonstration of this process is shown for two sample aircraft wing designs.

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“…In previous projects 4,5 , FEM-tables were stored as fixed format ASCII files. A better solution is to use the extensible mark-up language (XML).…”

Section: B Addressing the Issue Of Element Independent Product Attrimentioning

confidence: 99%

Automated Finite Element Analysis in a Knowledge Based Engineering Environment

Nawijn

Tooren

Berends

et al. 2006

44th AIAA Aerospace Sciences Meeting and Exhibit

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Efficient use of finite element based analysis in a knowledge based automated design environment requires the solution of two problems. First, it must be ensured that for every instantiation of a parametric product model, the geometry is segmented (discretized) in such a way that proper element connectivity can be assured. Second, since changes in product variables (dimensional changes) and changes in product parameters (configuration changes) will lead to changes in the mesh topology, the product attributes (e.g. material and supports) must be linked to the product geometry and not to element meshing. This paper shows that the segmentation process normally carried out by FEM experts manually, can be implemented with Knowledge Based Engineering (KBE). As a result it is guaranteed that the geometry associated to any instantiation of the product model is properly segmented and the connectivity issue is handled in a robust way. This paper shows that the dependency of the FEM model definition on the underlying mesh can be solved by adding information and/or knowledge to the geometric data from the KBE tool. In a traditional CAD based design environment, the knowledge generated in the geometric design stage is inaccessible to the FEM pre-processing process due to the fact that data transfer formats are incapable of capturing this knowledge. It is shown that in a KBE environment information/knowledge stored in the product model can be extracted and made accessible. Finally, it is shown by an elaborate example of a rudder design case that the combination of properly segmented geometry and the knowledge extracted from the product model together with a newly developed, Python based Knowledge Based Engineering Finite Element Analysis tool allows for the flexible incorporation of automated FEM analysis in a multi-disciplinary design environment.

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Parametric Modeling of Aircraft Families for Load Calculation Support

Cited by 13 publications

References 1 publication

Optimization of uniformly stressed structures of cylindrical tanks in CAD

Optimization of uniformly stressed structures of cylindrical tanks in CAD

Automatic Aircraft Structural Topology Generation for Multidisciplinary Optimization and Weight Estimation

Automated Finite Element Analysis in a Knowledge Based Engineering Environment

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