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2018年“暑期学校—国际学堂” 航空航天学院分校学术报告

文章来源:教务科           添加时间:2018/7/20 14:44:39

 

Subject: Experimental Design of an Energy Absorption System for Dropping supplies from Moving Aircraft
Time
July 24th 14:00---15:30

PlaceResearch Institute Building 202

Expert Introduction:

>> Haim Baruh, Ph.D.
>> Mechanical and Aerospace Engineering 
>> Rutgers, the State University of New Jersey

2009 present, Director, NASA/New Jersey Space Grant Consortium

2008 2012, Associate Dean, Graduate Education in Engineering, Rutgers School of Engineering

2002 2009, Graduate Program Director, Dept. of Mechanical and Aerospace Engineering, Rutgers School of Engineering

1983 present, Assistant, Associate and Full Professor, Department of Mechanical and Aerospace Engineering, Rutgers School of Engineering 

Main Content:
>> This talk describes the design and analysis of an energy-absorption-system container made of chevron-pattern folded paper for the purpose of encasing supplies to be &67bs2d2dropped from moving aircraft without using a parachute. A mathematical model of the energy absorption system is developed. The constitutive properties of the system are ascertained experimentally, and the system is tested by &67bs2d2dropping containers with different types of cargo and from the different altitudes and aircraft speeds without a parachute. Test results in a laboratory and actual &67bs2d2drop tests from moving aircraft demonstrate that this energy-absorption system manufactured using the paper-folding machine, built at the Rutgers University, absorb the impact energy of the &67bs2d2drop and protect the cargo from the collision forces that are encountered when the &67bs2d2dropped container impacts the ground and tumbles. It is shown that the design can successfully protect items with different fragilities inside containers &67bs2d2dropped from different altitudes up to 30 m with aircraft speeds up to 70 KIAS.

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