Abstract: An analytical model for multi-span transmission lines to estimate jump heights after ice shedding was set up, and an algorithm for the jump heights was developed by means of the energy equation, stress-sag relation, deformation and balance relation of the lines during the motion after ice shedding. ...
Abstract: With the equivalent medium model, the problem of planar waveguides filled with periodic parallel finite-length carbon nanotube arrays was introduced into the Hamilton system. Firstly, based on the equivalent medium theory, the dielectric property of the tilted carbon nanotubes was derived. Then, in ...
Abstract: The nonlinear model of a self-rotating cantilever beam confined by a restrictor located at an arbitrary position along the beam, was established. The stability of the system was investigated with the Ritz method. For the restrictor without friction, the critical values related to the restrictor’s po...
Abstract: Bridge structures will suffer complex loading environment during their service, and inevitable damages of structures may occur in long term service. If a damage can’t be found in time and treated properly, it may cause serious accidents. Therefore, the local small damage identification for bridge st...
Abstract: Through combination of the instantaneous optimal control (IOC) and the iterative learning control (ILC), one new hybrid control strategy called the iterative learning instantaneous optimal control was proposed. The discrete linear system was chosen as the target model for the new control strategy, a...
Abstract: A 5-DOF nonlinear vibration model for multi-clearance 2-stage gear systems was established with the lumped-mass method. In view of transmission errors, time-varying meshing stiffness and multiple gear clearances, the dimensionless dynamic equations for the system were derived. By means of the Poinca...
Abstract: The lattice Boltzmann method was adopted to investigate the double diffusive natural convection in a square enclosure filled with porous medium. The temperature and concentration on surrounding walls were low and those on the inner heat cylinder surface were high. The influences of Darcy number Da(1...
Abstract: The perfectly matched layer (PML) absorbing boundary condition had been proved to be a highly effective absorption technique for the numerical simulation of wave propagation and therefore widely used. In order to solve the problems of absorbing boundary conditions in the numerical modeling of 2nd-or...
Abstract: An active delayed feedback control technique was proposed to control the flutter of supersonic airfoils. It’s intended to increase the critical flow velocity. Firstly, the delayed feedback control strategy was designed to suppress the flutter of the 2D airfoil, in turn the delayed differential equat...
Abstract: The supercavitating flow hydrodynamics of grid fins of flat plates was addressed, and the effects on the grid fins’ hydrodynamic performances by different parameters including the grid fin plate number, the spacings between plates, the plate thickness, the attack angle and the cavitation number, wer...
