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The operation of a helicopter with an externally slung load is highly demanding for the flight crew. Without having a direct view on the load, the pilot needs assistance by a crew member for load handling, e.g., load positioning. During helicopter hoist operations (HHO), the hoist operator gives instructions to the pilot and stabilizes the load motion. An automatic load positioning system for HHO is designed with the aim to reduce the workload of the flight crew and to improve the load handling performance. The control system consists of a multiloop architecture that is designed using multi-objective optimization. The system was designed to achieve best performance in load positioning for the entire cable length range of the rescue hoist. Load positioning performance is a function of the cable length; faster automatic load positioning can be achieved with the shorter cable lengths. This paper describes the overall design process covering the tools, the control law architecture and optimization, and the validation using DLR’s simulator.

Made available in DSpace on 2018-12-11T17:28:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-08-01 Purpose: This study investigated the effects of 12-week of specific futsal training on body composition, oxygen uptake (VO2max), anaerobic capacity, and agility of male semi-professional futsal players. Methods: Thirteen athletes were subjected to a 12-week program of specific training for futsal with the external load of sessions prescribed from rated perceived exertion. VO2max, agility, anaerobic index, and body composition were assessed before and after the 12-week training program. Results: The main findings were that the 12-week training period was able to significantly reduce the fat percentage of body composition (−7.5 %) and to improve the agility (3.9 %), aerobic capacity (>7 %), and anaerobic index (6–25 %). Conclusions: Based on these results, it can be concluded that a 12-week program of specific training for futsal with the external load of sessions prescribed from rated perceived exertion can significantly improve the body composition, agility and aerobic and anaerobic capacity of semi-professional futsal players. Department of Physical Education UNESP- Univ Estadual Paulista Department of Physical Education UNESP- Univ Estadual Paulista