Peter Lloyd,Joshua Davy,Yael L May et al.
Peter Lloyd et al.
This paper presents a numerical solution to a reduced-order analytical energy formulation of a soft, magnetically actuated concentric tube continuum robot. Unlike conventional concentric tube robots, which rely on pre-curved elastic energy ...
A unified necessary condition for dynamic bow snap-through with prestress tuning in electrostatically actuated bistable microbeams [0.03%]
具有预应力调节的静电激励双稳态微梁动力刚跳统一必要条件
Sagi Tal,Lior Medina
Sagi Tal
A curved bistable microbeam, subjected to electrostatic loading from an electrode facing its concave side, may exhibit bow snap-through (BST) at nearly half the voltage ( ≈ 54 % ) when compared to actuation from the convex side. Prev...
MIMO Volterra kernel recovery in the frequency domain using neural networks [0.03%]
基于神经网络的频域MIMO Volterra核恢复方法研究
O H L Preston,T J Rogers,K Worden
O H L Preston
This paper presents a detailed analysis of a process for recovering multi-degree-of-freedom Volterra kernels using neural network weights, addressing the fact that such Higher-order Frequency Response Functions (HFRFs) have not previously b...
Numerical convergence of the scalar auxiliary variable method applied to nonlinear stiff string models [0.03%]
标量辅助变量方法在非线性刚度弦模型中应用的数值收敛性分析
Riccardo Russo,Michele Ducceschi,Stefan Bilbao
Riccardo Russo
This work is concerned with the Scalar Auxiliary Variable (SAV) method applied to geometrically nonlinear string models, focusing on the analysis of numerical convergence across various model formulations. An ODE system with a potential aki...
Hysteresis in cavitation emissions during a ramped-then-deramped amplitude sonication: A theoretical and experimental investigation [0.03%]
一种理论和实验结合的方法研究在幅度扫过型超声空化中的回滞效应
Yikai Zhang,Shida Li,Paul Prentice et al.
Yikai Zhang et al.
Dynamic hysteresis in cavitation emissions is investigated experimentally and numerically using a continuous ramped-then-deramped acoustic excitation. Hydrophone spectrograms reveal clear asymmetries between the ramped and deramped phases a...
Fluid-structure dynamics of a vibro-impact capsule robot in multiphase intestinal environments [0.03%]
多重介质环境下振动胶囊机器人的流固耦合动力学研究
Zepeng Wang,Jiyuan Tian,Yang Liu et al.
Zepeng Wang et al.
The gastrointestinal tract contains complex fluids, such as mucus, chyme, and water, that can significantly influence capsule robot locomotion by reducing friction or introducing hydrodynamic drag. This study presents a bidirectional fluid-...
Computation of simple invariant solutions in fluid turbulence with the aid of deep learning [0.03%]
借助深度学习计算流体湍流的简单不变解
Jacob Page
Jacob Page
The dynamical systems view of a turbulent fluid flow provides a tantalizing connection between the self-sustaining nonlinear mechanics of turbulence and its more well-known statistical properties, and promises to open up new avenues in our ...
Swimming dynamics of screw-shaped untethered magnetic robots in confined spaces [0.03%]
螺旋状无绳磁力机器人在狭小空间内的游泳动力学性能研究
Luuc de Jongh,Anke Klingner,Leendert-Jan W Ligtenberg et al.
Luuc de Jongh et al.
In confined environments, the propulsion speed of torque-driven helical untethered magnetic robots (UMRs) depends on vessel diameter and helical pitch. This phenomenon likely affects the swimming speed of these robots when navigating in viv...
Bifurcation-based dynamics and internal resonance in micro ring resonators for MEMS applications [0.03%]
微环谐振器的分岔动力学及内部共振在MEMS中的应用
Saber Azizi,Hamed Haddad Khodaparast,Hadi Madinei et al.
Saber Azizi et al.
This paper presents a novel investigation into the dynamics of a micro ring structure subjected to harmonic base excitation, designed as a highly sensitive MEMS mass sensor or bifurcation-based switch. Leveraging the in-plane nature of the ...
Optimal control under safety constraints and disturbances: a multi-step, off-policy adaptive dynamic programming approach [0.03%]
基于安全约束和扰动的最优控制：多步时策略无关自适应动态规划方法
Jun Ye,Xiaowei Zhao,Yougang Bian et al.
Jun Ye et al.
This paper introduces a multi-step, off-policy adaptive dynamic programming approach, in both model-free and model-based variants, intending to solve optimal control problems under disturbances and safety constraints. To provide a more accu...