... and the Gibbs phenomenon in computation and the improved series expansion methods are limited to certain proportionally damped continua under moving forces and moving oscillators. In this paper, a novel modified series expansion method (MSEM) is proposed to resolve the aforementioned issues in dynamic analysis...

... 23 05 2023 Email: chufl@tsinghua.edu.cn Email: qinzy@mail.tsinghua.edu.cn Email: lyfboook@163.com computational mechanics dynamics impact structures Accepted Manuscript Not Copyedited Journal of Applied Mechanics. Received April 03, 2023; Accepted manuscript posted May 17...

... even be impossible. This work is devoted to automatedly distilling the canonical equations solely from random state data. The random state data are collected from stochastically excited, dissipative dynamical systems either experimentally or numerically, while other information, such as the system...

... connected in parallel with a rate-independent dashpot, the dynamic stiffness (transfer function) of this mechanical network can be constructed in the frequency domain; and it was known since the early 1960s that this mechanical network exhibits a non-causal response. In view of its simplicity in association...

... by leveraging nonlinear dynamics, specifically short-duration voltage pulses. These voltage pulses—applied about nominal bias voltages where the large-stretch equilibrium does not experience dielectric breakdown—create transient stretches that, if sufficiently large, cause the membrane to dynamically snap...

... of these remarkable characteristics, HMSMs are promising candidates for the remotely controlled actuators. The magnetic actuation behavior of the hard-magnetic soft actuators (HMSAs) is considerably affected by the viscoelastic material behavior of HMSMs. In this article, we aim at developing an analytical dynamic...

... dynamics impact stress analysis wave propagation People's Government of Jilin Province 10.13039/501100003807 Grant SXGJSF2017-5-(4–6) from the New Energy Program of Jilin Province Fig. 1 The fractured fluid oscillator The fractured fluid oscillator When the stress wave...

...Jianfeng Li; Qinghua Qin; Wei Zhang; Qiang Wang; Jixiang Peng The quasi-static and dynamic compressive behaviors of carbon fiber-reinforced plastic (CFRP) Kagome lattice structures subjected to quasi-static load and low-velocity impact were investigated experimentally and numerically. CFRP Kagome...

... irreplaceable advantages over integer or constant fractional-order models in the dynamic modeling of complex systems. On the other hand, the introduction of variable FD has brought great challenges in the simulation and analysis of system responses. It is a prerequisite, therefore, to develop efficient solution...

... to create the first EP in a band. Our findings motivate feasible designs for the experimental realization of EPs in elastodynamic metastructures. This work was supported by the Dynamics, Controls, and System Dynamics (DCSD) Program of the National Science Foundation (NSF) under the awards CMMI-1925530...

...Markus J. Buehler Dynamic fracture is an important area of materials analysis, assessing the atomic-level mechanisms by which materials fail over time. Here, we focus on brittle materials failure and show that an atomistically derived progressive transformer diffusion machine learning model can...

... , Nonconservative Stability Problems of Modern Physics , De Gruyter , Berlin . [3] Udwadia , F. E. , 2017 , “ Stability of Dynamical Systems With Circulatory Forces: Generalization of the Merkin Theorem ,” AIAA J. , 55 ( 9 ), pp. 2853 – 2858 . 10.2514/1.J056109 [4] Merkin , D. R...

... are theoretically analyzed and introduced to improve the robustness of mass sensors. The nonlinear dynamics is computed by using the method of multiple scales, which is validated by the harmonic balance method combined with the asymptotic numerical method. Then, the rules for controlling the two different...

...Rumeng Liu; Jiaye He; Jicheng Zhang; Lifeng Wang Fully atomistic simulations and a sandwich plate model are used to study the dynamic behavior of twisted 3R-MoS 2 bilayers. The simulations demonstrate that for a very small twist angle, the Moiré pattern leads to the symmetry breaking...

... and an equi-biaxial loading S ( t ) in the plane, the deformation of the film is shown in Fig. 1 . Fig. 1 Schematic of the dynamic deformation of a rectangle dielectric film subjected to a voltage Φ( t ) and an equi-biaxial mechanical loading S ( t ) Schematic of the dynamic deformation...

...Luisa Piccolo Serafim; Everett Werner; Joey Zhou; Earl H. Dowell In this article, two nonlinear effects are investigated. One is the effect of the static stiffness nonlinearity in changing the linear dynamic natural frequency, and the other is the combination of nonlinear stiffness and nonlinear...

.... The fitness function is of the form, Contributed by the Applied Mechanics Division of ASME for publication in the J ournal of A pplied M echanics . 13 12 2021 18 05 2022 20 05 2022 19 07 2022 aerodynamics dynamics National Science Foundation 10.13039/100000001...

...Haijun Peng; Ningning Song; Fei Li; Shan Tang The effect of friction is widespread around us, and most important projects must consider the friction effect. To better depict the dynamic characteristics of multibody systems with friction, a series of friction models have been proposed by scholars...

... state histories, both in the ballistic impact tests as well as for quasi-static and dynamic tensile tests. This supports previous observations that brittle fracture is unlikely to occur in modern steels even when subjected to rapid loading and low temperatures. Email: jens.k.holmen@ntnu.no Email...

... in Secs. 5.2 and 5.3 . Email: keding2@illinois.edu 1 Corresponding author. Email: ajp@illinois.edu dynamics vibration Division of Civil, Mechanical and Manufacturing Innovation 10.13039/100000147 CMMI-1363231 We consider free response of a linearly sprung...