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In this work, a new approach is developed for predicting the vibro-acoustic characteristics of a semi-submerged cylindrical shell on the basis of the Flügge shell theory and sound-structure coupling theory. The effect of fluid free surface is taken into account by satisfying the sound pressure release boundary condition. The wave propagation method is utilized to derive the sound-structure coupling...
Stress effects during metal migration and their numerical modeling methods are reviewed. A multi-physics simulation method is proposed and developed so that the electric current and stress can be solved simultaneously and the vacancy concentration predicted in a seamless framework. The stress generated by atomic movement and back stress effects [1] have been especially considered and modeled in this...
To suppress traffic jam, we proposed a new modified coupled map car following model with proportional velocity difference factor. In this new kind of model, the full velocity difference value between two successive vehicles was incorporated into following vehicle's acceleration running equation. By taking the small velocity disturbance of preceding vehicle as error input, the system stability dynamics...
Failures caused by the electromigration (EM) are becoming a primary reliability concern of integrated circuits and electronics packaging designers and manufacturers. In the foreseeable future, the trend of greater scale integration and further miniaturization in the microelectronics industry is expected to continue and this will make the metallization in electronics devices more susceptible to EM...
The mechanical and geometrical properties of hierarchically nano-structured random irregular honeycombs are obtained in this paper. All the possible deformation mechanisms: bending, stretching, transverse shear and hinging, are considered in the deformation analysis. The results show that if the size of the first order cell walls is at the nano-meter scale, the elastic and geometrical properties of...
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