...Ranislav Bulatovic; Firdaus Udwadia This paper explores the decomposition of linear, multi-degree-of-freedom, conservative gyroscopic dynamical systems into uncoupled subsystems through the use of real congruences. Two conditions, both of which are necessary and sufficient, are provided...

... author. Email: mukherji@egr.msu.edu Contributed by the Applied Mechanics Division of ASME for publication in the J ournal of A pplied M echanics . 12 07 2023 14 08 2023 18 08 2023 11 09 2023 computational mechanics dynamics impact Directorate...

...Rashi Aditi Ranjan; Somnath Sarangi The dynamics of the electroactive membranes are being studied extensively due to their vast application at the current time. However, the effect of the mechanical behavior of the compliant electrode needs to be addressed. This paper presents the non-linear...

... to implement the expected spatiotemporal modulation upon a super-cell. Non-reciprocal propagation behavior of the proposed meta-structure is verified via theoretical solution of the dispersion relation as well as dynamic response of a finite array. Effects of modulation parameters, including the frequency...

...Junyin Li; Zhanchao Huang; Yong Wang; Zhilong Huang; Weiqiu Zhu Stochastic averaging, as an effective technique for dimension reduction, is of great significance in stochastic dynamics and control. However, its practical applications in industrial and engineering fields are severely hindered by its...

... at low Reynolds numbers. We develop an analytical model to describe the elasto-hydrodynamic problem and identify key design parameters. Muscle contraction dynamics is characterized experimentally and the implications of nonlinear amplitude-frequency relationship of muscle-based actuation are discussed...

...Rong-Biao Hao; Ze-Qi Lu; Hu Ding; Li-Qun Chen A novel approach to enhance the shock vibration environment of multi-directions using a high-static-low-dynamic stiffness supported orthogonal six-degrees-of-freedom (DOFs) nonlinear vibration isolation (OSNVI) system is presented in this paper...

... the days of Lagrange, and it is used in various areas of science and engineering like analytical dynamics, quantum mechanics, statistical physics, and nonequilibrium thermodynamics. The new principle permits the constraints on any mechanical system to be inconsistent and shows that Nature handles...

...Weidi Wang; Alireza V. Amirkhizi Dynamic mechanical metamaterials (MMs) are artificial media composed of periodic micro-structures, designed to manipulate wave propagation. Modeling and designing MMs can be computationally demanding due to the broad design space spanned by the geometric...

... The dynamic problems of flexible structures carrying moving subsystems are encountered in many engineering applications, including railroad bridges with high-speed trains [ 1 – 3 ], high-speed manufacturing [ 4 , 5 ], cable transportation [ 6 , 7 ], elevator systems, crane systems, and weapon systems...

... author. Email: qinzy@mail.tsinghua.edu.cn Email: chufl@tsinghua.edu.cn 03 04 2023 17 05 2023 18 05 2023 09 06 2023 auxetic honeycomb core modified Gibson function nonlinear Hertz contact theory nonlinear repeated impact responses nonlinear dynamic responses...

... 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...