A novel detailed analytical approach for determining the optimal design of FRP pressure vessels subjected to hydrostatic loading: Analytical model with experimental validation

2020 ◽  
Vol 183 ◽  
pp. 107732 ◽  
Author(s):  
Mohammad Hadi Hajmohammad ◽  
Ali Tabatabaeian ◽  
Ahmad Reza Ghasemi ◽  
Fathollah Taheri-Behrooz
Keyword(s):  
Optimal Design ◽  
Analytical Model ◽  
Analytical Approach ◽  
Experimental Validation ◽  
Pressure Vessels ◽  
Hydrostatic Loading

scholarly journals Analytical model for the depth progress of percussion drilling with ultrashort laser pulses

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
Daniel Holder ◽  
Rudolf Weber ◽  
Thomas Graf ◽  
Volkher Onuseit ◽  
David Brinkmeier ◽  
...  
Keyword(s):  
Analytical Model ◽  
Experimental Validation ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Picosecond Pulses ◽  
Hole Depth ◽  
Laser Percussion Drilling ◽  
Pulse Energies ◽  
Ultrashort Laser ◽  
Percussion Drilling

AbstractA simplified analytical model is presented that predicts the depth progress during and the final hole depth obtained by laser percussion drilling in metals with ultrashort laser pulses. The model is based on the assumption that drilled microholes exhibit a conical shape and that the absorbed fluence linearly increases with the depth of the hole. The depth progress is calculated recursively based on the depth changes induced by the successive pulses. The experimental validation confirms the model and its assumptions for percussion drilling in stainless steel with picosecond pulses and different pulse energies.

Potenziale der Mehrmaschinenbedienung*/Potentials of multiple-machine operation

2016 ◽  
Vol 106 (04) ◽  
pp. 211-217
Author(s):  
M. Thurm ◽  
S. Horler ◽  
D. Oehme ◽  
A. Opitz ◽  
E. Prof. Müller
Keyword(s):  
Analytical Model ◽  
Production System ◽  
Analytical Approach ◽  
Software Tool ◽  
New Approach ◽  
Machine Operation ◽  
Resource Input

Die prozess- und kostenorientierte Auslegung der Mehrmaschinenbedienung soll mithilfe eines neuen analytischen Modellansatzes die Ressourcennutzung effizienter gestalten. Dabei steht die Integration von Mitarbeiterqualifikation und Maschinenpriorität im Fokus. Durch die später geplante Implementierung des neu entwickelten Ansatzes in das Softwaretool SmartPlanner der CAPPcore GmbH gelingt es, die Planung und Optimierung von Produktionssystemen zu verbessern.   A new approach for process and cost-related designing of multiplemachine operation is developed to optimize the resource input. Skills of employees and priority of machines have to be considered in the analytical model. The new analytical approach of multiple machine operation will be integrated in the software tool Smart Planner of the enterprise CAPPcore GmbH later on to improve the planning and optimization of the production system as a whole.

Optimal design and experimental validation of sound absorbing multilayer microperforated panel with constraint conditions

2019 ◽  
Vol 146 ◽  
pp. 334-344 ◽  
Author(s):  
Xiaocui Yang ◽  
Panfeng Bai ◽  
Xinmin Shen ◽  
Sandy To ◽  
Liang Chen ◽  
...  
Keyword(s):  
Optimal Design ◽  
Experimental Validation

Optimal Winding Conditions of Flat Steel Ribbon Wound Pressure Vessels With Controllable Stresses

2008 ◽  
Vol 75 (4) ◽  
Author(s):  
Chuanxiang Zheng ◽  
Shaohui Lei
Keyword(s):  
Optimal Design ◽  
Stress Analysis ◽  
Design Method ◽  
Pressure Vessels ◽  
Layer By Layer ◽  
Shell Layer ◽  
Discrete Structure ◽  
Flat Steel ◽  
Optimal Design Method ◽  
Steel Ribbon

Stress analysis of flat steel ribbon wound pressure vessels (FSRWPVs) is very difficult because they have a special discrete structure and complex pretensions exit in the flat steel ribbons, which are wound around the inner shell layer by layer. An analytical multilayered model for stress analysis is presented in this paper, which involves the effect of prestress in every flat steel ribbon layer as well as in the inner shell. Based on this model, an optimal design method for FSRWPV is suggested, which can assure a reasonable stress level and distribution along the wall thickness during the operation. A practical example of a large FSRWPV is finally given for illustration.

Finite element analysis for optimal design of fuel cell pressure vessels

2020 ◽  
Vol 2020.28 (0) ◽  
pp. 104
Author(s):  
Riku SUZUKI ◽  
Noboru KATAYAMA ◽  
Kiyoshi DOWAKI ◽  
Shinji OGIHARA
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fuel Cell ◽  
Optimal Design ◽  
Pressure Vessels ◽  
Element Analysis
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