作者: Subjugate 時(shí)間: 2025-3-21 22:32
A Hybrid Static and Dynamic Model Updating Technique for Structures Exhibiting Geometric Nonlineariaper investigates a hybrid static and dynamic model updating technique for structures exhibiting geometric nonlinearity. The static model updating minimizes errors in stiffness modeling and the dynamic model updating minimizes errors in modeling non-stiffness terms of the FE model.作者: 全部 時(shí)間: 2025-3-22 02:09
Evaluation of Joint Modeling Techniques Using Calibration and Fatigue Assessment of a Bolted Structsess the effectiveness of a vibration approach to fatigue testing of bolts. Results show that common joint models can be inaccurate in predicting bolt loads, and even when updated using modal test data, linear structural models alone may be insufficient in evaluating fastener fatigue.作者: Confirm 時(shí)間: 2025-3-22 06:20
On Affine Symbolic Regression Trees for the Solution of Functional Problems,troduce a new representation—the affine symbolic regression tree. The search space size for the new representation is derived, and the results are compared to those for a standard regression tree. The results are illustrated by the search for an exact solution to several benchmark problems.作者: hermitage 時(shí)間: 2025-3-22 12:19 作者: frugal 時(shí)間: 2025-3-22 15:45 作者: 獸皮 時(shí)間: 2025-3-22 17:37 作者: 承認(rèn) 時(shí)間: 2025-3-22 22:29 作者: Acetabulum 時(shí)間: 2025-3-23 03:59 作者: Legion 時(shí)間: 2025-3-23 09:08 作者: 借喻 時(shí)間: 2025-3-23 10:02 作者: 不給啤 時(shí)間: 2025-3-23 16:33
Eric Robbins,Trent Schreiber,Arun Malla,Benjamin R. Pacini,Robert J. Kuether,Simone Manzato,Daniel Rstandards. This excessive saving produces a large current account surplus. Understanding why the Chinese save so much is a central issue in the debate on global imbalances. The goal of our paper is to make an empirical analysis of the saving behavior of Chinese households, taking into account the di作者: Detonate 時(shí)間: 2025-3-23 19:21 作者: 賠償 時(shí)間: 2025-3-24 01:44
Aabhas Singh,Kayla M. Wielgus,Ignazio Dimino,Robert J. Kuether,Matthew S. Allenal legislation has increasingly supported environmental protection in terms of conservation of natural and energy resources, eco-innovation and use of renewable energy sources. During the last decade attention to environmental issues has been accompanied by the development of technological skills in作者: AMOR 時(shí)間: 2025-3-24 02:23 作者: 迷住 時(shí)間: 2025-3-24 08:01 作者: 發(fā)電機(jī) 時(shí)間: 2025-3-24 12:14 作者: Employee 時(shí)間: 2025-3-24 18:41
Jie Yuan,Loic Salles,Christoph Schwingshacklrst, resource allocations are market-driven. Prices are determined in a market system, with the exception of selective infrastructure services. China has shifted from a planned economy in which output quotas were state-directed to a market economy guided by masterplans formulated on a five-year basi作者: Bureaucracy 時(shí)間: 2025-3-24 20:32
Brian Evan Saunders,Rui M. G. Vasconcellos,Robert J. Kuether,Abdessattar Abdelkefim the perspective of post-war history. The influence of China’s thirty-year economic growth and its contribution to long-term global economic growth, owing to China’s huge population, seem comparable with that of the USA in the late 19th century. However, this comparison could be misleading without 作者: 遠(yuǎn)足 時(shí)間: 2025-3-25 01:35
Brian Evan Saunders,Rui M. G. Vasconcellos,Robert J. Kuether,Abdessattar Abdelkefirst, resource allocations are market-driven. Prices are determined in a market system, with the exception of selective infrastructure services. China has shifted from a planned economy in which output quotas were state-directed to a market economy guided by masterplans formulated on a five-year basi作者: Myocyte 時(shí)間: 2025-3-25 04:54
Kyusic Park,Matthew S. Allenorld. With the exception of the Philippines and Myanmar, all of the economies in the region have experienced at least one decade — and often several decades — of per capita GDP growth rates of 5 per cent a year and more. No other major part of the developing world has experienced anything comparable作者: 表示問 時(shí)間: 2025-3-25 08:02
M. D. Champneys,N. Dervilis,K. Wordenc reform (including price management, commodity and factor markets, taxation, investment financing, trade regime, foreign exchange system, etc.) have achieved significant progress over the past 20 years, the chronic performance problem of SOEs remains the government’s biggest headache. Various schem作者: 陶醉 時(shí)間: 2025-3-25 13:26 作者: 放牧 時(shí)間: 2025-3-25 18:21
Taylan Karaa?a?l?,H. Nevzat ?zgüventill relatively backward north and western parts of the country. Regional income inequality has been widening considerably under economic reforms (Yao, 1997). This has been accompanied by dramatic changes in the employment and investment structures at both national and regional level. First, there i作者: Synthesize 時(shí)間: 2025-3-25 23:49 作者: GREEN 時(shí)間: 2025-3-26 01:02 作者: ENNUI 時(shí)間: 2025-3-26 07:40
M. Curtin,M. Ley,M. Trujillo,B. E. Saunders,G. Throneberry,A. Abdelkefitill relatively backward north and western parts of the country. Regional income inequality has been widening considerably under economic reforms (Yao, 1997). This has been accompanied by dramatic changes in the employment and investment structures at both national and regional level. First, there i作者: AMBI 時(shí)間: 2025-3-26 08:35
Pre-test Predictions of Next-Level Assembly Using Calibrated Nonlinear Subcomponent Model, a foundation for understanding nonlinear response during environmental testing. Several researchers and studies have previously shown how localized nonlinearities can influence the global vibration modes of a system. This current work builds upon the study of a demonstration aluminum aircraft with 作者: Atheroma 時(shí)間: 2025-3-26 13:43
Nonlinear Variability due to Mode Coupling in a Bolted Benchmark Structure,due to nonlinearity. Bolted joints are of interest in dynamically loaded structures because frictional slipping at the contact interface can introduce amplitude-dependent nonlinearities into the system, where the frequency of the structure decreases, and the damping increases. The challenge to model作者: intuition 時(shí)間: 2025-3-26 17:28 作者: MUT 時(shí)間: 2025-3-26 23:57
Evaluation of Joint Modeling Techniques Using Calibration and Fatigue Assessment of a Bolted Structener fatigue life. In this work, modal testing, model calibration, and fatigue analysis are performed for a bolted structure, and various joint modeling techniques are compared. The structure is designed to test a single bolt to fatigue failure by utilizing an electrodynamic modal shaker to axially 作者: 摻假 時(shí)間: 2025-3-27 03:10
A Non-Masing Microslip Rough Contact Modeling Framework for Spatially and Cyclically Varying Normalof friction in joints introduces nonlinearities in the vibration response of the structure. Frictional contact models can be applied to reproduce the nonlinear behavior, but the best predictive modeling framework is not clear. Elastic dry friction is a popular choice for predictive modeling, but rec作者: ingrate 時(shí)間: 2025-3-27 06:51
Finite Elements and Spectral Graphs: Applications to Modal Analysis and Identification, discrete domains. This chapter considers potential applications for such ideas in the field of modal analysis and identification. The thesis of the chapter lies in generalizing the “weak form” integral equations of the wave equation on a weighted graph domain using said developments (graph operatio作者: 木質(zhì) 時(shí)間: 2025-3-27 10:57
Effects of the Geometry of Friction Interfaces on the Nonlinear Dynamics of Jointed Structure,equencies of the assembled structures due to softening effects and to reduce the vibration amplitude due to frictional energy dissipation between substructural components. It is also widely recognized that the geometrical characteristics of interface geometry have a significant impact on the nonline作者: 廚師 時(shí)間: 2025-3-27 17:09 作者: 無情 時(shí)間: 2025-3-27 19:56 作者: acetylcholine 時(shí)間: 2025-3-28 00:26
Model Updating and Uncertainty Quantification of Geometrically Nonlinear Panel Subjected to Non-uni, leading to highly nonlinear behaviors such as buckling. In order to determine whether a model correctly captures changes in the dynamics due to heating, the linearized natural frequencies can be compared between test and the FE model at a certain thermal state. This is considerably more difficult 作者: 脾氣暴躁的人 時(shí)間: 2025-3-28 04:21
On Affine Symbolic Regression Trees for the Solution of Functional Problems,neering, where a functional problem is interpreted here as a search problem in a function space. A good example of a functional problem in structural dynamics would be to find an exact solution of a nonlinear equation of motion. Symbolic regression is usually implemented in terms of a tree represent作者: ATP861 時(shí)間: 2025-3-28 08:07
NIXO-Based Identification of the Dominant Terms in a Nonlinear Equation of Motion,n a priori. Examples of very effective methods of this kind are NIFO, CRP, and NARMAX. Several works have sought to extend NARX or NARMAX to a black-box modeling technique. They have proven to be successful in finding accurate mathematical models for certain types of nonlinear systems, yet no method作者: 草率女 時(shí)間: 2025-3-28 11:02
Nonlinear Dynamics and Characterization of Beam-Based Systems with Contact/Impact Boundaries,lytical verification in the form of Euler-Bernoulli beam theory are utilized to initially understand the ideal linear system and identify an expected frequency range of interest. The complex nonlinear behavior of varying stopper’s location on the characteristics of a cantilever beam system with a ti作者: NEEDY 時(shí)間: 2025-3-28 16:19
Experimental Modal Analysis of Geometrically Nonlinear Structures by Using Response-Controlled Stepe than ever, which eventually gives birth to more flexible engineering structures exhibiting large deformations in operational conditions. Accordingly, continuously distributed geometrical nonlinearity resulting from large deformations is currently an important design consideration. Being guided wit作者: 描述 時(shí)間: 2025-3-28 19:33
On the Application of the Generating Series for Nonlinear Systems with Polynomial Stiffness,for a system with cubic stiffness requires the use of elliptic functions in the exact solution. A system with general polynomial stiffness would be even more difficult to solve analytically, if such a solution was even to exist. Perturbation and series solutions are possible but become increasingly 作者: Definitive 時(shí)間: 2025-3-29 00:10 作者: 改變立場 時(shí)間: 2025-3-29 04:06 作者: 條約 時(shí)間: 2025-3-29 09:12 作者: 反叛者 時(shí)間: 2025-3-29 14:36
Pre-test Predictions of Next-Level Assembly Using Calibrated Nonlinear Subcomponent Model,near element. The experimentally measured backbone curves are correlated with a nonlinear Hurty/Craig-Bampton (HCB) reduced order model (ROM) using the calculated nonlinear normal modes (NNMs). Following the calibration, the nonlinear HCB ROM of the pylon is attached to a linear HCB ROM of the wing 作者: neutralize 時(shí)間: 2025-3-29 17:34
Nonlinear Variability due to Mode Coupling in a Bolted Benchmark Structure,m. Although the two structures have different frequency and damping characteristics, the mode coupling relationship between the first two modes of the structures is shown to be consistent and significant. The data is intended as a challenge problem for interested researchers; all data from these tes作者: Flinch 時(shí)間: 2025-3-29 19:47 作者: conscience 時(shí)間: 2025-3-30 02:49
A Non-Masing Microslip Rough Contact Modeling Framework for Spatially and Cyclically Varying Normall pressures. The assumption of constant normal pressures neglects the kinematics of jointed interfaces, while the Masing assumptions do not generally hold for normal pressures that vary throughout a cycle. The present work seeks to further develop a microslip rough contact modeling framework without作者: Texture 時(shí)間: 2025-3-30 05:35 作者: nutrients 時(shí)間: 2025-3-30 11:17
Bifurcation Analysis of a Piecewise-Smooth Freeplay System,thods of nonlinear dynamics are used to characterize the transitions in system response including phase portraits, frequency spectra, and Poincaré maps. Different freeplay contact stiffnesses are studied including soft, medium, and hard in order to determine how the system response changes as the fr作者: 無法治愈 時(shí)間: 2025-3-30 15:46 作者: Chagrin 時(shí)間: 2025-3-30 18:35
Model Updating and Uncertainty Quantification of Geometrically Nonlinear Panel Subjected to Non-unite, after which the updated model was used to compute the linear natural frequencies and mode shapes with respect to varying temperature fields and those were compared with the experimental data, revealing that the modal properties are highly sensitive to the model’s design parameters. It proved dif作者: 防止 時(shí)間: 2025-3-30 22:59 作者: Cacophonous 時(shí)間: 2025-3-31 03:03 作者: evanescent 時(shí)間: 2025-3-31 07:12 作者: carotid-bruit 時(shí)間: 2025-3-31 11:01 作者: CAMEO 時(shí)間: 2025-3-31 13:58 作者: osculate 時(shí)間: 2025-3-31 18:16
duction in China in order to benefit from low production costs. However, part of Chinas success in environmental goods is ascribable to the accretion of relevant skills, a development that may have benefited by the evolution of environmental legislation and policy in China.作者: 人工制品 時(shí)間: 2025-3-31 21:40 作者: Ringworm 時(shí)間: 2025-4-1 02:23
Aabhas Singh,Kayla M. Wielgus,Ignazio Dimino,Robert J. Kuether,Matthew S. Allenduction in China in order to benefit from low production costs. However, part of Chinas success in environmental goods is ascribable to the accretion of relevant skills, a development that may have benefited by the evolution of environmental legislation and policy in China.作者: 機(jī)警 時(shí)間: 2025-4-1 09:08 作者: Mangle 時(shí)間: 2025-4-1 12:35
Brian Evan Saunders,Rui M. G. Vasconcellos,Robert J. Kuether,Abdessattar Abdelkefito medium-income category, with severe institutional problems and overall relatively backward technologies compared with advanced countries, the questions of how far China can reach and whether its growth is sustainable are most challenging to address.作者: 古老 時(shí)間: 2025-4-1 16:31 作者: Wordlist 時(shí)間: 2025-4-1 20:30
Comparative Analysis of Mechanical and Magnetic Amplitude Stoppers in an Energy Harvesting Absorber作者: 權(quán)宜之計(jì) 時(shí)間: 2025-4-1 22:49
