منابع مشابه
Helicopter Journals
The impact factor mania, also called impactitis, continues to play an improper role in the choices made by most investigators as to which journals to submit their research articles in the biomedical fields, and still worse, in the decisions taken by governing bodies and research grant allocators, as highlighted in a recent mBio editorial (1). Other factors, however, are threatening the scientif...
متن کاملAn Analysis of Maneuvering Effects on Transmission Vibrations in an AH-1 Cobra Helicopter
During the past several years, an AH-1 Cobra aircraft at the NASA Ames Research Center has been instrumented with tri-axial accelerometers and a data acquisition system to support the experimental study of in-flight transmission vibration patterns. This paper describes the on-board HealthWatch system and presents important statistical analyses of the collected data sets. These analyses provide ...
متن کاملHelicopter Rotor Unsteady Aerodynamics
Unsteady helicopter rotor aerodynamics are complicated. This paper reviews some of the fundamentals and newer developments of unsteady helicopter aerodynamics. Rotor flow is beautiful and complex. Visualizing rotor flow allows for an appreciation of the following theories and solution attempts as well as nature’s complexities. The flow through a helicopter rotor with forward motion is shown in ...
متن کاملThe RMAX Helicopter UAV
.............................................................2 INTRODUCTION.....................................................2 BACKGROUND OF DEVELOPMENT OF INDUSTRIAL –USE-UNMANNED HELICOPTERS........................................................2 PROTOTYPE MODEL OF 'RCASS' COUNTERREVOLUTION DUAL-ROTOR HELICOPTER ....3 DEVELOPMENT OF FIRST MODEL 'R50' ..........3 ATTITUDE CONTROL DEVICE,' ...
متن کاملHelicopter combat survivability
Of all modern aircraft, helicopters are the least survivable due to their low altitude and relatively low speed flight profiles compared with jet aircraft, and their high acoustic and radar signatures. These are inherent limitations of rotary wing aircraft, which cannot be easily or affordably designed out. Formal survivability analysis is centred on two components: the first being susceptibili...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 1992
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.58.1281