Efficient control of RF MEMS switches is a very important issue as it is correlated to main failure mechanisms/modes such as the impact force and bouncing phenomena which degrade their dynamic performance and longevity. This paper presents the control of a specific ohmic RF MEMS switches under three different actuation modes, a tailored pulse optimization method based on Taguchi’s technique (vo...

Communication delay is an important factor affecting the stability and performance of telerobotic systems. In this paper, a new adaptive proportional damping controller proposed to improve system in presence cases such as asymmetric communication delay, unknown gravity torque, friction other disturbance torques. The control method combines RBF neural network strategy compensate for torque. robu...

We provide a theoretical model that describes the dielectric coupling of a two-dimensional (2D) layer of graphene, represented by a polarization function in the random phase approximation, and a semi-infinite three-dimensional (3D) substrate, represented by a surface response function in a non-local formulation. We concentrate on the role of the dynamic response of the substrate for low-frequen...

In single stage valves, the main spools are stroked directly by solenoid actuators. They are cheaper and more reliable than multistage valves. Their use, however, is restricted to low bandwidth and low flow rate applications due to the limitation of the solenoid actuators. Our research focuses on alleviating the need for large and expensive solenoids in single stage valves by advantageously usi...

In earlier work, a Hamiltonian describing the classical motion of particle moving in two dimensions under combined influence perpendicular magnetic field and damping force proportio...

Abstract. The dynamic stability problem is solved for onedimensional structures subjected to time-dependent deterministic or stochastic axial forces. The stability analysis of structures under time-dependent forces strongly depends on dissipation energy. The simplest model of viscous damping with constant coefficient was commonly assumed in previous papers despite the fact that there are other ...

Apple fruit can be damaged because of some impact forces which are the main sources of apple degradation during the contact. To reduce the damage, it is necessary to investigate normal contact forces. The normal contact force models depend on dynamical parameters such as spring and damping. The spring and damping parameters of Kuwabara and Kano normal contact force model are obtained in differe...