Buscar
Mostrando ítems 1-10 de 30
How to evaluate the postural balance in a more efficient and less expensive way?
(2018-01-01)
The assessment of postural control is important for the diagnosis and monitoring of balance disorder. Although there are qualitative and quantitative tools (Centre of pressure - CoP) for this evaluation. Some of them show ...
Influence of nonlinear effects on the acoustic levitation of small spheres
(IEEEChicago, Illinois, 2014-09-03)
This paper presents the nonlinear characterization of a single-axis acoustic levitator and the analysis of the influence of nonlinear effects on the acoustic levitation of small spheres. First, the nonlinear characterization ...
Simulation of dynamic pinion course using Runge-Kutta's method and impact modeling
(2011-12-01)
Once defined the relationship between the Starter Motor components and their functions, it is possible to develop a mathematical model capable to predict the Starter behavior during operation. One important aspect is the ...
Calibration uncertainty estimation for internal aerodynamic balance
(2008-12-01)
Aerodynamic balances are employed in wind tunnels to estimate the forces and moments acting on the model under test. This paper proposes a methodology for the assessment of uncertainty in the calibration of an internal ...
STEADY-STATE ANALYSIS OF NONLINEAR SYSTEMS BY THE RECEPTANCE HARMONIC BALANCE METHOD
(Int Inst Acoustics & Vibration, 2015-01-01)
If a system is comprised of linear and nonlinear elements then the receptance and harmonic balance methods may be combined to analyse the steady-state forced vibration of the system. This has huge advantages in that the ...
The Characteristics of Vibration Isolation System with Damping and Stiffness Geometrically Nonlinear
(2016-10-03)
The paper concerns an investigation into the use of both stiffness and damping nonlinearity in the vibration isolator to improve its effectiveness. The nonlinear damping and nonlinear stiffness are both achieved by horizontal ...
AERODYNAMIC LOADS MEASUREMENT OF A SOUNDING ROCKET VEHICLE TESTED IN WIND TUNNEL
(Imeko, 2009-01-01)
In wind tunnels, aerospace vehicle models are tested in order to analyze their performance in real flight situations. The forces and moments exerted by the airflow on the surface of the test article are measured using ...
Aerodynamic loads measurement of a sounding rocket vehicle tested in wind tunnel
(2009-12-01)
In wind tunnels, aerospace vehicle models are tested in order to analyze their performance in real flight situations. The forces and moments exerted by the airflow on the surface of the test article are measured using ...
Straightforward systematic approach for fuel efficiency and emissions assessment in automotive systems
(2011-12-01)
At this time, each major automotive market bares its own standards and test procedures to regulate the vehicle green house gases emissions and, thus, fuel consumption. Hence, much are the ways to evaluate the overall ...