作者: Throttle 時間: 2025-3-21 23:51
Semi Hyper-Reduction for Nonlinear Surface Loads on Finite Element Structures by the Use of Stress ostly task in dynamic simulations. While for time integration an enormous reduction of the FE models number of degrees of freedom (DOFs) can be achieved by subspace projection, the computation of nonlinear surface loads usually depends on the non-reduced physical DOFs. In order to overcome this issu作者: Free-Radical 時間: 2025-3-22 02:12
Parameter Identification of a Linear Substitution Model for Nonlinear Contact and Damping Inside La In this work, a simple linear substitution model for the joint contact is proposed and the parameters are identified. Subsequently, it is numerically examined whether this model is predictive and transferable. The identified parameters are the tangential stiffness, normal stiffness, tangential damp作者: 臨時抱佛腳 時間: 2025-3-22 06:18
Flexible Multibody Dynamics: Which Terms of the Equations of Motion Have to Be Considered for Which is sometimes necessary to implement a simple and problem-oriented multibody simulation code in programs like Matlab or Scilab. The question then arises, which terms of the equation of motion have to be considered when the flexible body is modelled along the Floating Frame of Reference Formulation. 作者: Etching 時間: 2025-3-22 09:35
Application of the Bouc-Wen Model to Bolted Joint Dynamics, is the Bouc-Wen model, which relates the input displacement to the output restoring force in a hysteretic way. This formulation is intended for any form of hysteresis and was originally applied to force – deflection and flux – current diagrams of mechanical and ferromagnetic hysteresis. Built-up st作者: fatty-acids 時間: 2025-3-22 14:33
Some Aspects of Using the Random Decrement Technique for Nonlinear Systems,entation of RD for this purpose is usually done by simply applying the technique at multiple amplitudes in the measured response signal. Modal parameters are then estimated based on RD signatures using well known time domain modal parameter estimation methods. This analysis procedure originates from作者: 人類學(xué)家 時間: 2025-3-22 18:10
Investigation of String Motions of Bowed String Instruments: A Finite Element Approach,whereas the bow is one single node. The cause of the sound is the stick-slip effect, which occurs at steady bowing of a string. The contact area between the bow node and one string node is modeled as nodal contact. This work aims at investigating the Schelleng Diagram as well as the Guettler diagram作者: 陰謀 時間: 2025-3-22 21:18 作者: 簡潔 時間: 2025-3-23 02:16
Force Probing to Access Potential Energy,n measure the force required to maintain equilibrium, then the extraction of potential energy is relatively straightforward, since the force is the negative vector gradient of the potential. In this paper we apply this approach to a small mass that is placed on various shapes under the action of gra作者: ineffectual 時間: 2025-3-23 08:50 作者: SOW 時間: 2025-3-23 10:33
Comparison Between Control-Based Continuation and Phase-Locked Loop Methods for the Identification parametric identification of key nonlinear dynamic features such as nonlinear frequency responses and backbone curves. Both CBC and PLL exploit stabilizing feedback control to steer the dynamics of the tested system towards the responses of interest and overcome important difficulties experienced wh作者: 季雨 時間: 2025-3-23 15:59
Implementing the Restoring Force Surface Method to Fit Experimentally Measured Modal Coupling Effecing and modeling this response, it is typically assumed that modes are uncoupled, in that each responds independently of the excitation level of other modes. This assumption is derived from the belief that, while modal coupling generally exists in physical structures, its effects are relatively smal作者: 占卜者 時間: 2025-3-23 18:08 作者: 一再遛 時間: 2025-3-23 22:52 作者: 包租車船 時間: 2025-3-24 02:39 作者: Offset 時間: 2025-3-24 07:01 作者: Vital-Signs 時間: 2025-3-24 12:13 作者: neutral-posture 時間: 2025-3-24 15:34
Towards an Understanding of the Transient Behavior of the Five-Parameter Iwan-Type Model, change in effective stiffness and change in effective damping of the model as vibration amplitude changes. Several experimental studies on bolted-joint structures have experienced difficulty in fitting a traditional Iwan model to match measurements, so this advantage is sorely needed. However, Mign作者: Ceremony 時間: 2025-3-24 21:12 作者: 天賦 時間: 2025-3-25 01:59 作者: 珍奇 時間: 2025-3-25 04:37
Mitchell Wall,Seyed Iman Zare Estakhraji,Matthew S. Allenhocyte agonist (1) produced by a wide variety of cells in different tissues upon stimulation either by major inflammatory cytokines interleukin-1 (IL-1) and tumor necrosis factor (TNF) or by microorganisms and their products (1,2). When injected into humans and experimental animals NAP-1/IL-8 was sh作者: FILLY 時間: 2025-3-25 10:24 作者: Enliven 時間: 2025-3-25 15:21 作者: fertilizer 時間: 2025-3-25 19:13
Robert M. Lacayo,Matthew S. Allend of the Qin Dynasty (221–204 BC) and the First Emperor, popularly known as Qin Shi Huangdi, China has been a united and prosperous empire. History credits Emperor Qin Shi Huangdi for initiating a sophisticated government structure that outlasted him for two millennia. For the major part of this per作者: Fulsome 時間: 2025-3-25 23:04 作者: Custodian 時間: 2025-3-26 03:44 作者: dendrites 時間: 2025-3-26 05:23 作者: 追蹤 時間: 2025-3-26 10:00
https://doi.org/10.1007/978-3-030-47626-7Structural Mechanics; Nonlinearity; Society for Experimental Mechanics; Modal Analysis; Conference Proce作者: 披肩 時間: 2025-3-26 15:57
Force Probing to Access Potential Energy,n measure the force required to maintain equilibrium, then the extraction of potential energy is relatively straightforward, since the force is the negative vector gradient of the potential. In this paper we apply this approach to a small mass that is placed on various shapes under the action of gravity.作者: morale 時間: 2025-3-26 18:42
Kyusic Park,Matthew S. Allenety (Maddison, 1998). However, China lacked the entrepreneurial prowess and military muscle that the European countries and Japan succeeded in cultivating. A time came when its economic affluence went into a sharp decline and it was reduced to dismal poverty. In 1978, the economy began to make its now-celebrated U-turn作者: 特別容易碎 時間: 2025-3-26 22:26 作者: 異教徒 時間: 2025-3-27 01:39 作者: Pastry 時間: 2025-3-27 07:18 作者: hypnogram 時間: 2025-3-27 10:04
Stefan P?chacker,Thomas Lau?,Florian Pichler,Stefan Oberpeilsteiner,Wolfgang Witteveen作者: cravat 時間: 2025-3-27 16:09
Drithi Shetty,Matthew S. Allen,Joseph D. Schoneman作者: incisive 時間: 2025-3-27 20:30
Wolfgang Witteveen,Lauss Thomas,Oberpeilsteiner Stefan作者: LUDE 時間: 2025-3-28 00:50
Connor Ligeikis,Adam Bouma,Justin Shim,Simone Manzato,Robert J. Kuether,Daniel R. Roettgen作者: TAIN 時間: 2025-3-28 04:19 作者: HILAR 時間: 2025-3-28 08:25
Benjamin Moldenhauer,Daniel R. Roettgen,Benjamin Pacini作者: browbeat 時間: 2025-3-28 13:12
Ga?tan Abeloos,Ludovic Renson,Christophe Collette,Gaetan Kerschen作者: 柱廊 時間: 2025-3-28 18:31 作者: debris 時間: 2025-3-28 22:01 作者: Morose 時間: 2025-3-29 02:43
Parameter Identification of a Linear Substitution Model for Nonlinear Contact and Damping Inside Laibuted optimization method is investigated. This decentralized method accelerates the optimization process almost by the factor of the used computers. The determined parameters are used in a modified setting and compared with a corresponding reference solution. The aim is to use the obtained substit作者: 可以任性 時間: 2025-3-29 03:50
Application of the Bouc-Wen Model to Bolted Joint Dynamics,slow decrease in stiffness with vibration amplitude exhibited by bolted interfaces, numerical integration of the same is currently computationally expensive. Time integration of the Bouc-Wen model, on the other hand, is much more efficient, thus warranting the proposed study.作者: 有特色 時間: 2025-3-29 08:56
Investigation of String Motions of Bowed String Instruments: A Finite Element Approach,on curves of the rosin are modeled and simulated as well, which has been tested and investigated extensively in the literature mainly experimentally, see e.g (Smith, Woodhouse, J Mech Phys Solids 48(8):1633–1681, 2000)..An overall research of the finite-element modeling of bowed strings is started w作者: 正面 時間: 2025-3-29 15:09
FreeDyn: A Free, Flexible and State of the Art Multibody Simulation Package for Education, Researchcilab or self-written codes. The C-interface provides control functions for time integration and access to model data, which are normally hidden (e.g. mass matrix, constraint forces, Jacobi matrices etc.). Beside industrial applications, FreeDyn can be used in education and research..In Education: B作者: Sciatica 時間: 2025-3-29 17:04 作者: FUSC 時間: 2025-3-29 22:16 作者: 成份 時間: 2025-3-30 03:43
Implementing the Restoring Force Surface Method to Fit Experimentally Measured Modal Coupling Effeceach mode and record its nonlinear dynamic response. The Restoring Force Surface (RFS) method is then implemented to fit a nonlinear model to each isolated modal response. Sine beats are then done on multiple modes simultaneously, in which the response is assumed to be a combination of the nonlinear作者: evaculate 時間: 2025-3-30 04:35
Model Correlation to a Nonlinear Bolted Structure Using Quasi-Static Modal Analysis,he amplitude dependent damping and natural frequency predicted by QSMA. Specifically, the effect of the friction coefficient and the curvature of the contact interface on the QSMA predictions is found and quantified. The results so far show that some of these effects could improve model agreement.作者: FLING 時間: 2025-3-30 08:48 作者: flamboyant 時間: 2025-3-30 14:53
Tuning of Finite Element Model Parameters to Match Nonlinear Reduced Order Models,E model were in error, and so it is difficult to transfer the lessons learned to future FE models. This work explores the feasibility of updating a FE model to correlate with a ROM with a set of known parameters. The target ROM parameters consist of the linear stiffness and the nonlinear stiffness c作者: 滑動 時間: 2025-3-30 17:36
Towards an Understanding of the Transient Behavior of the Five-Parameter Iwan-Type Model,reaches a maximum steady-state displacement after a ring-up response (such as occurs when the system is excited at resonance by a shaker), the stiffness and damping it exhibits is consistent with those formulated by Mignolet. When the vibration decays below the maximum-achieved displacement, however作者: 誘使 時間: 2025-3-30 21:56
Ludovic Rensonsystem was creating some confusion in the area, especially as new factors continue to be discovered and classified as family members. In the past, these inflamm978-1-4613-6283-8978-1-4615-2952-1Series ISSN 0065-2598 Series E-ISSN 2214-8019 作者: 內(nèi)向者 時間: 2025-3-31 02:31
Seyed Iman Zare Estakhraji,Matthew S. Allen,Drithi Shettysystem was creating some confusion in the area, especially as new factors continue to be discovered and classified as family members. In the past, these inflamm978-1-4613-6283-8978-1-4615-2952-1Series ISSN 0065-2598 Series E-ISSN 2214-8019 作者: 楓樹 時間: 2025-3-31 05:10
2191-5644 uctures: Identification, Mechanics, Dynamics.Experimental Nonlinear Dynamics.Nonlinear Model & Modal Interactions.Nonlinear Damping.Nonlinear Modeling & Simulation.Nonlinearity & System Identification??.978-3-030-47628-1978-3-030-47626-7Series ISSN 2191-5644 Series E-ISSN 2191-5652 作者: CODA 時間: 2025-3-31 12:12 作者: Carbon-Monoxide 時間: 2025-3-31 17:19 作者: 陶醉 時間: 2025-3-31 18:18
