.png){kind=icon}
返回
A stochastic Iwan-type model for joint behavior variability modeling
.png){kind=icon}
PRE
AI
DOI：10.1016/j.jsv.2015.03.032.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This paper focuses overall on the development and validation of a stochastic model to describe the dissipation and stiffness properties of a bolted joint for which experimental data is available and exhibits a large scatter. An extension of the deterministic parallel-series lwan model for the characterization of the force-displacement behavior of joints is first carried out. This new model involves dynamic and static coefficients of friction differing from each other and a broadly defined distribution of Jenkins elements. Its applicability is next investigated using the experimental data, i.e, stiffness and dissipation measurements obtained in harmonic testing of 9 nominally identical bolted joints. The model is found to provide a very good fit of the experimental data for each bolted joint notwithstanding the significant variability of their behavior. This finding suggests that this variability can be simulated through the randomization of only the parameters of the proposed Iwan-type model. The distribution of these parameters is next selected based on maximum entropy concepts and their corresponding parameters, i.e. the hyperparameters of the model, are identified using a maximum likelihood strategy. Proceeding with a Monte Carlo simulation of this stochastic Iwan model demonstrates that the experimental data tits well within the uncertainty band corresponding to the 5th and 95th percentiles of the model predictions which well supports the adequacy of the modeling effort. (C) 2015 Elsevier Ltd. All rights reserved.
Keyword:
UNCERTAINTIES
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
4.9
论文数:
1.7W
被引数:
4.8W
机构
引用论文
Built-in self-test of logic blocks in FPGAs (Finally, a free lunch: BIST without overhead!)Fpga中逻辑块的内置自测试 (最后，免费午餐: 无开销的BIST!)
.png){kind=icon}
PREAI
分享收藏Comparison of the antiviral effects of substituted benzimidazoles and guanidine in vitro and in vivo
PREAI
分享收藏Physical systems with random uncertainties: Chaos representations with arbitrary probability measure
OAAI
OAAI分享收藏
分享收藏The Efficacy of a Pilot Prevention Program for Children and Caregivers Coping with Economic Strain
PREAI
分享收藏 没有更多内容
没有更多内容