... with the overall structural dynamics of the engine, from the perspective of the vibration transfer paths of the engine, the fault mechanism analysis is conducted on the vibration characteristics of the rotor-rotor inter-shaft labyrinth seal rubbing. In summary, it can be seen that previous researchers have...

... viscous damping. NMP zeros have a negative impact on the dynamics and control of flexible systems and therefore are generally undesirable. Viscous damping is one potential means to guarantee that no NMP zeros exist in the system. However, the impact of viscous damping on NMP zeros of multi-DoF flexible...

...John W. Sanders; Eric T. Becker; Adam C. DeVoria This paper presents a detailed review of the emerging topic of higher-order dynamics and their intrinsic variational structure, which has enabled—for the very first time in history—the general application of Hamiltonian formalism to non-conservative...

...Liuding Yu; Shuyong Liu; Hu Guobiao Bistable structures are widely used for vibration energy harvesting due to their wide bandwidths and extraordinary performance. However, the dynamics of bistable structures are complicated, and inter-well, intra-well, chaotic, superharmonic, and subharmonic...

...@vibestechnology.com Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the J ournal of V ibration and A coustics . 15 07 2024 30 10 2024 30 10 2024 26 11 2024 active vibration and noise control dynamics structural acoustics system...

...Xuan-Hong Chen; Meng-Hsuan Tien Nonlinear dynamics analysis is a crucial topic in mechanical and aerospace engineering. The analysis of nonlinear normal modes (NNMs) provides an effective mathematical tool for interpreting complex nonlinear vibration phenomena. Unlike the invariant normal modes...

...Liming Wang; Hao Zhang; Lintao Duan; Desheng Zou; Wennian Yu; Huifang Xiao; Zaigang Chen Angular misalignment is a common error in gear transmission systems, significantly altering the contact and dynamic behaviors of the gear system. Conventionally, the time-varying mesh stiffness (TVMS...

... . The numerical simulation model is 77DOF consisting of an engine, torque converter, seven multi-disc clutches, four planetary gearsets, and vehicle dynamics module. The torque converter clutches and automatic transmission clutches are activated through seven 6DOF electro-hydraulic clutch actuators. 2D sketch...

...Jaewon Lee; Seunghun Baek A novel methodology to predict responses of bladed disks incorporated with a split ring damper is proposed. To account for the dynamic characteristics of a split ring damper, intentional blade stiffness mistuning is presented. It is assumed that the mistuning...

.... References [1] McCroskey , W. J. , 1981 , “ The Phenomenon of Dynamic Stall ,” NASA Technical Memorandum 81264, NASA TM -81264, Ames Research Center, Moffett Field, CA. [2] Afzali , F. , Kapucu , O. , and Feeny , B. F. , 2016 , “ Vibrational Analysis of Vertical-Axis Wind...

... of the different skin layers in the observed dynamic response. With respect to the magnitude, the results by Håkansson et al. do not conceptually deviate from those of Nie et al. and Cortés apart from a small deviation of the slope in the high-frequency mass-governed region. A satisfactory approximation...

... ournal of V ibration and A coustics . 07 05 2023 03 09 2023 05 09 2023 06 10 2023 phononic crystal sandwich beam band gap broadband vibration suppression band-folding dynamics structural dynamics and control vibration isolation Figure 14 demonstrates...

... theoretically and experimentally investigate the concept of material extrusion on an “air bed”—an engineered ultrasonic acoustic field that stabilizes and supports the soft material by contactless radiation pressure force. We study the dynamics of polylactic acid filament—a commonly used material in 3D printing...

...] Alijani , F. , and Amabili , M. , 2014 , “ Non-linear Vibrations of Shells: A Literature Review From 2003 to 2013 ,” Int. J. Non Linear Mech. , 58 , pp. 233 – 257 . 10.1016/j.ijnonlinmec.2013.09.012 [21] Meish , V. F. , 2005 , “ Numerical Solution of Dynamic Problems...

... formulation into the three-dimensional planetary dynamic load distribution model (Ryali, and Talbot, 2021, “A Dynamic Load Distribution Model of Planetary Gear Sets,” Mech. Mach. Theory, 158, p. 104229). The proposed contact model employs a modified simplex algorithm to iteratively solve for the elastic gear...

...] Kim , N. I. , and Kim , M. Y. , 2005 , “ Exact Dynamic-Static Stiffness Matrices of Non-Symmetric Thin-Walled Beams Considering Coupled Shear Deformation Effects ,” Thin Walled Struct. , 43 ( 5 ), pp. 701 – 734 . 10.1016/j.tws.2005.01.004 [6] Choi , S. C. , Park , J. S...

... (Theoretical Analysis and Experiment Using a Single Rigid Blade Model) ,” J. Environ. Eng. , 4 ( 2 ), pp. 443 – 454 . 10.1299/jee.4.443 [2] Ramakrishnan , V. , and Feeny , B. F. , 2011 , “ In-Plane Nonlinear Dynamics of Wind Turbine Blades ,” ASME International Design Engineering...

... dynamics structural dynamics parametric excitation resonance perturbation analysis 31 12 2021 06 02 2023 06 02 2023 02 03 2023 Contributed by Technical Committee on Vibration and Sound of ASME for publication in the J ournal of V ibration and A coustics . 1...

...-Conservative Combined Dynamic Systems ,” ASME J. Vib. Acoust. , 145 ( 1 ), p. 011003 . 10.1115/1.4055078 [11] Abdeljaber , O. , Avci , O. , and Inman , D. J. , 2016 , “ Optimization of Chiral Lattice Based Metastructures for Broadband Vibration Suppression Using Genetic Algorithms...

...Mustafa Özgür Aydoğan; Zihni B. Sarıbay; H. Nevzat Özgüven A non-linear dynamic model of a multi-mesh involute spur pinion-driven face-gear split-torque drive system is developed. The lumped mass model consists of five pinions and two face-gears with seven rotational degrees-of-freedom. Model...