نتایج جستجو برای: time varying stiffness

تعداد نتایج: 2023539  

2011
M Contreras S Nagarajaiah S Narasimhan

Existing methods for structural health monitoring pose a formidable challenge to real time implementation due to the significantly large computational loads. The proposed algorithm is suitable for online applications because it maintains good pattern recognition capabilities while possessing a computationally compact network topology. This study employs the computational efficiency of single la...

2000
V. D. Tsiantos

In this paper we investigate stiffness in micromagnetic simulations in the ODE context. We introduce some pragmatic measures of stiffness based on the total number of time steps taken by a non stiff and a stiff method to solve the LLG equation, and the cost of each method per time step. We present a family of micromagnetic calculations that simulates materials with strong exchange coupling betw...

2010
Petar Kormushev Sylvain Calinon Darwin G. Caldwell

Humans employ varying stiffness in everyday life for almost all human motor skills, using both passive and active compliance. Robots have only recently acquired variable passive stiffness actuators and they are not yet mature. Active compliance controllers have existed for a longer time, but the problem of automatic determination of the necessary compliance to achieve a task has not been thorou...

Journal: :journal of advances in computer research 2013
mirsaeid hosseini shirvani mehran mohsenzadeh seyed majid hosseini shirvani

the large number of applications manages time varying data. existing databasetechnology seldom supports temporal database, tdb, according to time aspects.these intrinsic temporal database applications rely on such database which storesand retrieves time referenced data. moreover, applications need to be managed oncommon data items access simultaneously and to be precluded from inconsistencyas s...

2017
S. Ifqir N. Ait Oufroukh

This paper presents a new method for guaranteed and robust estimation of sideslip angle and lateral tire forces with consideration of cornering stiffness variations resulting from changes in tire/road and driving conditions. An interval LPV observer with both measurable and unmeasurable time-varying parameters is proposed. The longitudinal velocity is treated as the online measured time-varying...

Journal: :Journal of physics 2021

Abstract Modal property is the crucial factor that can influence vibration characteristics of planetary gear system. Previous studies used time invariant mesh stiffness (TIMS) to study natural characteristics. However, with rotation gear, meshing will change periodically which lead changes modal properties. Based on these properties are ignored in previous studies, a translational-torsional fre...

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