Results 21 to 30 of about 531 (135)

Structural Stiffness Identification Based on the Extended Kalman Filter Research

Abstract and Applied Analysis, 2014
For the response acquisition of the structure section measuring points, the method of identifying the structural stiffness parameters is developed by using the extended Kalman filter.
Fenggang Wang, Xianzhang Ling, Xun Xu, Feng Zhang   +3 more
doaj   +1 more source

Numerical Study on Unbalance Response of Dual-Rotor System Based on Nonlinear Bearing Characteristics of Active Magnetic Bearings

Actuators, 2023
The magnetic suspended dual-rotor system (MSDS) has the advantage of a high power density. The system can be used in high-speed rotating machinery. The major purpose of this study is to predict the unbalance response of the MSDS considering the nonlinear
Nianxian Wang, Mingzheng Liu, Junfu Yao, Pingping Ge, Huachun Wu   +4 more
doaj   +1 more source

Dynamic Response Analysis of Structures Using Legendre–Galerkin Matrix Method

Applied Sciences, 2021
The solution of the motion equation for a structural system under prescribed loading and the prediction of the induced accelerations, velocities, and displacements is of special importance in structural engineering applications.
Mohammad Momeni, Mohsen Riahi Beni, Chiara Bedon, Mohammad Amir Najafgholipour, Seyed Mehdi Dehghan, Behtash JavidSharifi, Mohammad Ali Hadianfard   +6 more
doaj   +1 more source

How digital platforms affect local entrepreneurial activities: Evidence from the staggered entry of craigslist

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Access to markets is critical for entrepreneurial success, yet many face significant barriers. This study argues that digital platforms functioning as peer‐to‐peer marketplaces can facilitate entrepreneurial activity by improving market access for new ventures.
Daehyun Kim, Yongwook Paik, Namil Kim
wiley   +1 more source

A Method for Dynamic Response Analysis of Offshore Substation Platform Foundations Based on Modal Truncation

Journal of Marine Science and Engineering
The foundation structure of offshore substation platforms is complex and has numerous degrees of freedom. The computational efficiency of dynamic response analysis using traditional time-domain methods is often relatively low.
Jiefeng Chen, Hongchao Lu, Enjin Zhao
doaj   +1 more source

The numerical calculation method based on equivalent frequency-independent time-domain damping model

Journal of Low Frequency Noise, Vibration and Active Control, 2022
In order to realize the time-domain analysis based on hysteretic damping model, the frequency-independent time-domain damping model of single degree of freedom (SDOF) system is constructed.
Panxu Sun, Shuxia Wang, Dongwei Wang
doaj   +1 more source

Sherman traps, bucket cameras, eDNA—oh, my: A comparative study of small mammal monitoring methods

Wildlife Society Bulletin, EarlyView.
Comparison of Sherman live trapping, bucket camera traps, and airborne environmental DNA (eDNA) for assessing small mammal communities in restored prairies. Bucket cameras detected the highest species richness, live trapping provided the most precise species identifications, and airborne eDNA detected unique taxa.
Bianca M. Saftoiu, Mark D. Johnson, Patrick J. Wolff, Aron D. Katz, Catherine E. Dana, Jinelle H. Sperry   +5 more
wiley   +1 more source

NONLINEAR DYNAMIC ANALYSIS OF THE STEEL-RUBBER VIBRATION ISOLATORS WITH PERFORATION

International Journal for Computational Civil and Structural Engineering
The paper presents a comparative study of nonlinear dynamic analyses of perforated and non-perforated steel–rubber vibration isolators. Particular emphasis is placed on the nonlinear response of rubber, incorporating hyperelasticity (via the Mooney ...
Vladimir Mondrus, Dmitry Sizov
doaj   +1 more source

Influence of Fir-Tree Tenon Blade Parameters on Blade Dynamic Characteristics

Shock and Vibration, 2023
In this paper, based on the theory of elastic structure analysis, considering the rotational softening and centrifugal stiffening of the blade, the dynamic model of the fir-tree rotating blade and the macroslip hysteresis model of the dry friction on the
Zhenya Yang, Chaofeng Li
doaj   +1 more source

Nonlinear Response‐History Analyses of Masonry and Mixed Structures With HybriDFEM

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 8, Page 1694-1709, 10 July 2026.
ABSTRACT The hybrid discrete‐finite element (HybriDFEM) method, previously developed to perform static and modal analysis in discrete and coupled discrete‐finite element models, is extended to nonlinear response‐history analyses. The equations of motion for the HybriDFEM model are solved through various numerical time‐integration schemes, both explicit
Igor Bouckaert, Michele Godio, João Pacheco de Almeida   +2 more
wiley   +1 more source