Control-structure integrated design

AIAA Journal ◽  
1992 ◽  
Vol 30 (8) ◽  
pp. 2124-2131 ◽  
Author(s):  
Achille Messac ◽  
Kamal Malek
Keyword(s):  
Control Structure ◽  
Integrated Design

Control-Structure Integrated Design of Flexible Spacecraft Using MOEA/D

2013 ◽  
Vol 651 ◽  
pp. 619-624
Author(s):  
Zhi Wei Feng ◽  
Qing Bin Zhang ◽  
Qian Gang Tang
Keyword(s):  
Interaction Design ◽  
Control Structure ◽  
Integrated Design ◽  
Space Structure ◽  
Space Structures ◽  
Control Cost ◽  
Flexible Space Structures ◽  
Lagrange’S Equation ◽  
Conflicting Objectives ◽  
And Control

A framework has been developed to identify control-structure interaction design of flexible space structures that are Pareto optimal with respect to multiple conflicting objectives. The objectives and constraints of multiobjective optimization problem are derived from structure and control performances. The equation of motion of the flexible space structure are based on Lagrange’s equation. Multiobjective evolutionary algorithm based on decomposition (MOEA/D) is employed for optimization. This framework has been applied to a controlled idealized rotating structure to quantify tradeoffs in control-strcutrue design. The control-strcutrue design is optimized based on two conflicting objectives with minimize total mass and minimize control cost using MOEA/D. To solve the equality constraint of the above problem, an improvement is proposed in the implementation of MOEA/D. The improvement is based on the modification of new solution on each step of evolution. The numerical results obtained suggest that the MOEA/D and its improvement have the potential of practical applicability.

Integrating Safety and Crew Resource Management (CRM) Aspects in the Recurrent Training of Cabin Crew Members

2011 ◽  
Vol 1 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Sandrina Ritzmann ◽  
Annette Kluge ◽  
Vera Hagemann ◽  
Margot Tanner
Keyword(s):  
Resource Management ◽  
Integrated Design ◽  
Crew Resource Management ◽  
Training Module ◽  
Cabin Crew ◽  
Training Cycle ◽  
Aviation Training ◽  
Training Format ◽  
Instructional Design Principles ◽  
Practical Instruction

Recurrent training of cabin crew should include theoretical and practical instruction on safety as well as crew resource management (CRM) issues. The endeavors of Swiss International Air Lines Ltd. and Swiss Aviation Training Ltd. to integrate CRM and safety aspects into a single training module were evaluated. The objective of the integration was to make CRM more tangible and ease acquisition of competencies and transfer of CRM training content to practice by showing its relevance in relation to safety tasks. It was of interest whether the integrated design would be mirrored in a more favorable perception by the trainees as measured with a questionnaire. Participants reacted more positively to the integrated training than to stand-alone CRM training, although the integrated training was judged as being slightly more difficult and less oriented toward instructional design principles. In a range of forced-choice questions, the majority of participants opted for an integrated training format because it was seen as livelier and more interesting and also more practically relevant. For the forthcoming training cycle, a better alignment of training with instructional principles and an even higher degree of training integration by using simulator scenarios are striven for.

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