Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Huabiao ZHANG"'
Publikováno v:
Micromachines, Vol 14, Iss 11, p 2109 (2023)
The nonlinear dynamic response of a MEMS resonator with a triangular tuning comb is studied. The motion equation with dis-smooth tuning electrostatic force is derived according to Newton’s second law. The analytical solution of the periodic respons
Externí odkaz:
https://doaj.org/article/0b4e8a5c414f4b7ba76932aba67c6837
Publikováno v:
Advances in Mechanical Engineering, Vol 14 (2022)
Based on a model with three-degree-of-freedom, the nonlinear coupled axial-torsional vibration of drill string is numerically studied considering a modified contact model of bit-rock interaction. The effects of driving angular velocities, nominal dri
Externí odkaz:
https://doaj.org/article/a23e16690c954dbbafdc53b68a957ed8
Publikováno v:
Journal of Hebei University of Science and Technology, Vol 40, Iss 3, Pp 242-251 (2019)
The dynamic behavior of a piezoelectric cantilever energy harvesting system with bi-stable state under elastic support is studied to reveal its complex phenomena. Based on the magnetic force model which can induce bi-stable phenomena, the mathematica
Externí odkaz:
https://doaj.org/article/8fef778c6c384e4da41e25fdeb5d0e01
Publikováno v:
Micromachines, Vol 13, Iss 10, p 1569 (2022)
The inclination effect caused by fabrication errors on the periodic response of a symmetric MEMS gyroscope is investigated. The dynamic equation is established considering the inclination effect on support stiffness and electrostatic forces. The peri
Externí odkaz:
https://doaj.org/article/07a6566ec11b4572a7343e5e49855fc9
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
The dynamic response and its stability of a blade rotor with coupled rubbing in the labyrinth seal and tip seal are investigated. The dynamic equations are established based on the Hertz contact rubbing force at the labyrinth seal and the tip rubbing
Externí odkaz:
https://doaj.org/article/cf9ca5b63cd04a3dbf1f26697e447c6f
Publikováno v:
Micromachines, Vol 13, Iss 2, p 148 (2022)
In this paper, we investigate the bifurcation characteristics of a comb drive MEMS resonator. The method of averaging and the residue theorem are used to get a more accurate analytical solution for the periodic response. Then, the singularity theory
Externí odkaz:
https://doaj.org/article/4bd70b1fa99846da90efa1faf600863e
Bifurcation Analysis of a Micro-Machined Gyroscope with Nonlinear Stiffness and Electrostatic Forces
Publikováno v:
Micromachines, Vol 12, Iss 2, p 107 (2021)
The bifurcation of the periodic response of a micro-machined gyroscope with cubic supporting stiffness and fractional electrostatic forces is investigated. The pull-in phenomenon is analyzed to show that the system can have a stable periodic response
Externí odkaz:
https://doaj.org/article/40e7a0bbaf9d47d6992c57cf8d1d951f
Publikováno v:
Shock and Vibration, Vol 19, Iss 3, Pp 365-377 (2012)
The principal parametric resonance of two van der Pol oscillators under coupled position and velocity feedback control with time delay is investigated analytically and numerically on the assumption that only one of the two oscillators is parametrical
Externí odkaz:
https://doaj.org/article/7fffc4d5108c4ede8074d7853dde8a3e
Publikováno v:
Shock and Vibration, Vol 18, Iss 1-2, Pp 377-386 (2011)
In this paper, the dynamics of Duffing-van der Pol oscillators under linear-plus-nonlinear position feedback control with two time delays is studied analytically and numerically. By the averaging method, together with truncation of Taylor expansions
Externí odkaz:
https://doaj.org/article/3a37cfeb1cfc4104bea1556c8122f3d0
Publikováno v:
Nonlinear Dynamics. 110:1129-1149