| People | Locations | Statistics |
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| Seuring, Stefan |
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| Nor Azizi, S. |
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| Pato, Margarida Vaz |
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| Kölker, Katrin |
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| Huber, Oliver |
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| Király, Tamás |
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| Spengler, Thomas Stefan |
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| Al-Ammar, Essam A. |
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| Dargahi, Fatemeh |
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| Mota, Rui |
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| Mazalan, Nurul Aliah Amirah |
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| Macharis, Cathy | Brussels |
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| Arunasari, Yova Tri |
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| Nunez, Alfredo | Delft |
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| Bouhorma, Mohammed |
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| Bonato, Matteo |
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| Fitriani, Ira |
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| Autor Correspondente Coelho, Sílvia. |
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| Pond, Stephen |
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| Okwara, Ukoha Kalu |
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| Toufigh, Vahid |
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| Campisi, Tiziana | Enna |
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| Ermolieva, Tatiana |
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| Sánchez-Cambronero, Santos |
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| Agzamov, Akhror |
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Lankarani, H. M.
in Cooperation with on an Cooperation-Score of 37%
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Publications (23/23 displayed)
- 2011Numerical and experimental investigation on multibody systems with revolute clearance jointscitations
- 2010Development of a planar multibody model of the human knee jointcitations
- 2009Lubricated revolute joints in rigid multibody systemscitations
- 2008Study of the influence of the revolute joint model on the dynamic behavior of multibody mechanical systems: Modeling and simulationcitations
- 2008Modeling expected wear in revolute joints with clearance in multibody mechanical systemscitations
- 2008Multibody systems formulation
- 2008Translational joints with clearance in rigid multibody systemscitations
- 2008Spatial joints with clearance: Dry contact models
- 2008Contact-impact force models for mechanical systems
- 2008Lubricated joints for mechanical systems
- 2008Planar joints with clearance: Dry contact models
- 2008Introduction
- 2007Dynamic behaviour of planar rigid multi-body systems including revolute joints with clearancecitations
- 2006Spatial revolute joints with clearances for dynamic analysis of multi-body systemscitations
- 2006A study on dynamics of mechanical systems including joints with clearance and lubricationcitations
- 2006Dynamics of multibody systems with spherical clearance jointscitations
- 2006Influence of the contact-impact force model on the dynamic response of multi-body systemscitations
- 2005Dynamics of multibody systems with spherical clearance joints
- 2004Modelling lubricated revolute joints in multibody mechanical systemscitations
- 2003A modern aerospace modeling approach for evaluation of aircraft fuselage crashworthinesscitations
- 2003Modeling lubricated revolute clearance joints in multibody mechanical systems
- 2003Dynamic behavior of a revolute clearance joint in multibody mechanical systems
- 2003Finite element analysis of impacts on water and its application to helicopter water landing and occupant safetycitations
Places of action
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document
Finite element analysis of impacts on water and its application to helicopter water landing and occupant safety
Abstract
The study of hydrodynamic impact between a body in motion and a free water surface finds applications, in aeronautical fields, in splashdown and ditching problems. The effect of this impact is often prominent in the design phase of the project and, therefore, the importance of studying the event with more accuracy than in the past is imperative. Usually the study of the phenomenon is dealt with experiments, empirical laws, and lately, with finite element simulations. These simulations are performed by means of special codes that allow the fluid-structure coupling; these codes have their origin in Lagrangian finite element programs developed for crash analysis improved with possibility of interfacing with Eulerian spatial description, typical of fluids. Critical points in this type of modelling are the fluid-structure interaction algorithms, constitutive modelling of the fluid and time efficiency of the computation. This study describes an effort that focuses on the development of a crash modelling and simulation approach utilizing a non-linear explicit finite-element code (LSDYNA 960) to demonstrate the potential for helicopter water impact analysis in the development of crash design criteria and concepts. Initially, the water model shall be developed and validated using default Lagrangian techniques. Subsequently, more accurate Arbitrary Lagrangian Eulerian analyses will be conducted to obtain finer results for the ball impact scenario and helicopter impact. Finally, the response of an occupant for the above helicopter crash test shall be analyzed using the MADYMO code, utilizing accelerations obtained from the LSDYNA output. Lumbar load, the most crucial mode of injury in these types of crashes will be investigated and discussed.
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