Impact force and structural response of reinforced concrete (RC) beams under drop weight impact have been intensively studied reported in the literature. The prediction peak has well investigated while study overall profile governing is limited. parameters acting on a structure including force, plateau duration all affect responses. This investigates profiles from RC beams. effects global stiff...

Design and Implementation of Discrete Time Observer Based Backstepping Controller for a 2DOF Servomechanism

We report a new class of MEMS resonant potential sensor based on the mode localization effect using a 3-degree-of-freedom (DoF) electrically weakly coupled resonator system. As opposed to previously reported electrically coupled 2DoF mode-localized resonant sensors, it can be shown in theory that the 3DoF structure has an improved sensitivity without sacrificing signal transduction, in addition...

The paper is dealing with the development of a new class of multipurpose multi-degrees-o-freedom (MDOF) Positioning Systems (PS) to be used as precision devices in a cell manufacturing desktop environment. Based on a structural investigation and systematization with imposed criteria, parallel mechanisms (PM) with 2dof actuators on the base was proposed. In its first modular design concept, each...

The inverse kinematics problem in robotics requires the determination of the joint angles for a desired position of the end-effector. The most important problem in robot kinematics and control is, finding the solution of Inverse Kinematics. If the joint structure of the manipulator is more complex the traditional method such as geometric, iterative and algebraic are inadequate. As the complexit...

We present a new stability analysis for hybrid legged locomotion systems based on the “symmetric” factorization of return maps.We apply this analysis to two-degrees-of-freedom (2DoF) and threedegreesoffreedom (3DoF) models of the spring loaded inverted pendulum (SLIP) with different leg recirculation strategies. Despite the non-integrability of the SLIP dynamics, we obtain a necessary condition...

Considering driving safety and comfort, this paper proposed a roll and yaw integrated control method utilizing four wheel steering based on disturbance observer (hereinafter DOB) and 2-degree-of-freedom (hereinafter 2DOF) control approach. Firstly, vehicle model for controller design as well as the desired roll and yaw motion were explained; then the controller design was carried out based on t...

Abstract The present study proposes an advanced force display control system for a surgical training simulator with virtual reality. In oral and orthopedic surgeries, surgeon uses chisel mallet chiseling cutting hard tissue. To enable the representation of sensation operation in simulator, device has been constructed ball-screw mechanism to obtain high stiffness. addition, two-degrees-of-freedo...