منابع مشابه
Encapsulated ball bearings for rotary micro machines
We report on the first encapsulated rotary ball bearing mechanism using silicon microfabrication and stainless steel balls. The method of capturing stainless steel balls within a silicon race to support a silicon rotor both axially and radially is developed for rotary micro machines and MEMS ball bearing tribology studies. Initial demonstrations show speeds up to 6.8 krpm without lubrication, w...
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We investigate a phenomenon we call micro-productivity decrease, which is expected to be found in most development or maintenance projects and has a specific profile that depends on the project, the development model and the team. Micro-productivity decrease refers to the observation that the cumulative effort to implement a series of changes is larger than the effort that would be needed if we...
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This paper provides an overview oabout the design of the LinkMAV rotary wing autonomous Micro Aerial Vehicle. The paper describes the flying platform, the main problems related to aerodynamics and propulsion, the onboard avionics and the flight control system, including the autonomous navigation algorithms. We also describe the sensor chosen for the MAV05 competition, held in Garmisch Partenkir...
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1. Introduction Ultrasonic motor (USM) which has many useful features, such as high torque at low speed, precise position, quick response, and no electromagnetic interference, has been widely used in the fields of robotics, medicine and optics
متن کاملHigh Speed Railway Productivity :
Signature of A uthor........ ......................r.. . ........ .................................................... Department of Civil & Environmental Engineering May 11 th, 2012 C ertificated by............. . ........................... Joseph M. Sussman JR East Professor of Civil & Environmental Engineering and Engineering Systems 11 11 A ccepted by .........................................
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ژورنال
عنوان ژورنال: MATEC Web of Conferences
سال: 2018
ISSN: 2261-236X
DOI: 10.1051/matecconf/201819015002