Silicon-MEMS gyroscope is an important part of MEMS ( Micro Electrical Mechanical System). There are some disturb ignored in traditional gyroscope that must be evaluated newly because of its smaller size (reach the level of micron). In these disturb, the air pressure largely influences the performance of the MEMS gyroscope. Different air pressure causes different gas damping coefficient for the...

Introduction: The NASA Glenn Research Center (GRC) is conducting in-house research on linear alternators (LA’s) to assist in developing free-piston Stirling convertors for radioisotope space power systems. This abstract intends to summarize the existing and potential types of LA’s that may be used with Stirling power convertors. Many of the existing LA types have been tested at NASA GRC and wor...

Abstract In the present paper, dynamical response of a cantilever beam with fractional damping excited by moving mass load is studied. First, vibration equation established adopting Euler-Bernoulli theory. Then, discretized using Galerkin discretization. The discrete difficult to solve due damping. Based on generalized harmonic function technology, force approximated and conservative force. an ...

There have been considered solving direct problem of deforming isotropic, elastic and hingedly supported beam finite length. A roller moving at a constant speed along the axis acts on beam. The has cylindrical shape certain radius length that is greater than or equal to width differential equations motion are analyzed from point view influence their components especially right-hand parts dynami...