Observations of variability and repeatability in jointed structures
Observations of variability and repeatability in jointed structures
复制标题
关节结构变异性和重复性的观察
DOI：
10.1016/j.ymssp.2019.04.020
复制
发表时间：
2019
影响因子：
8.4
通讯作者：
P. Reuss
中科院分区：
文献类型：
--
作者：
M. Brake;C. Schwingshackl;P. Reuss
关节力学的实验研究一直是有限的，由于其有效性的高不确定性与组件的子组件。特别是，两类不确定性是可变性（不同的，名义上相同的零件的测量不确定性）和重复性（同一组零件的测量不确定性）。因此，测量的不确定性通常大于正在研究的非线性特性（例如振幅相关频率和阻尼），这使得有意义的实验具有挑战性。本文分析了可变性和重复性形式的不确定性的贡献者，以提出建议的方法，以减少不确定性和重新设计的关节，以提高其动态。实验进行了总结，调查的作用，实验装置，界面粗糙度，沉降与磨损，界面几何形状（包括宏观和微观），和周围的联合结构。从这些研究的结果，建议在连接结构的非线性测量。
The experimental study of joint mechanics has been limited in its effectiveness due to the high uncertainty associated with assemblies of sub-components. In particular, two categories of uncertainty are variability (the uncertainty in measurements of different, nominally identical parts) and repeatability (the uncertainty in measurements of the same set of parts). As a result, the uncertainty measured is often greater than the nonlinear characteristics being studied (such as amplitude dependent frequency and damping), which makes meaningful experimentation challenging. This paper analyzes the contributors to uncertainty in the form of variability and repeatability in order to make recommendations for methods to reduce the uncertainty and to redesign a joint to improve its dynamics. Experiments are summarized that investigate the role of experimental setup, interface roughness, settling versus wear, interface geometry (both meso-scale and macro-scale), and the structure surrounding the joint. From the results of these studies, recommendations for the measurement of nonlinearities in jointed structures are made.
影响因子：
8.4
作者：
N. N. Balaji-N.;M. Brake
通讯作者：
N. N. Balaji-N.;M. Brake
影响因子：
6.2
作者：
Kartal, M. E.;Mulvihill, D. M.;Hills, D. A.
通讯作者：
Hills, D. A.