impact is one of the most important subjects which always have been considered in mechanical science. nature of impact is such that which makes its control a hard task. therefore it is required to adopt a safe and secure mechanism for transferring the impact to other vulnerable parts of a structure, when it is necessary. one of the best methods of absorbing impact energy is using thin-walled tu...

With the aim of revealing effects low temperature on vibration impact comminution performance wheat bran, dynamic bran at different temperatures was simulated by using LS-DYNA. According to collision relationship between grinding medium and a three-component numerical calculation model established. The essence analyzed, solution method based LS-DYNA proposed. On this basis, finite element obtai...

Having a robot that can learn a task shown to it is an challenge for robotic scientists and useful for nonengineers who want to interact with a robot. In this paper we address some of the difficulties one will have to overcome when developing such a system. Making a good data capturing of what is shown to the robot is one such problem, and one other is the curse of dimensionality that arises wh...