This paper presents the optimal mechanism design and dynamic analysis of a prototype 3-leg 6-DOF (degree-of-freedom) parallel manipulator. Inverse kinematics, forward kinematics, inverse dynamics and working space characterizing the platform motion are derived. In the presented architecture, the base platform has three linear slideways individually actuated by a synchronous linear servo motor, ...

Abstract The use of chemical methods weed control is an effective means control. However, the large amounts herbicides leads to environmental pollution, contaminates food, and adversely affects health people working with herbicides. safest method mechanically remove weeds by pulling rooted out soil or cutting driving under soil. Robots pneumatic, hydraulic, electrical systems cutters. Electrica...

Intracellular organelle transport is driven by motors that act upon microtubules or microfilaments. The microtubulebased motors, cytoplasmic dynein and kinesin, are believed to be responsible for retrograde and anterograde transport of intracellular cargo along microtubules. Many vesicles display bidirectional movement; however, the mechanism regulating directionality is unresolved. Directional...

Most molecular motors use ATP. This is not surprising since this is the universal currency of energy for most of life’s processes. The question to be addressed in this chapter is how does the fundamental chemistry of ATP hydrolysis influence the observed organization of linear molecular motors seen today with a focus on myosin. This chapter is written to ask in simple terms what can be gained b...

Piezoelectric ultrasonic motors are superior to electromagnetic micro motors, because their efficiency remains theoretically constant during miniaturization. However, the still relatively recent technology has a considerable unexploited optimization potential. Numerical structural analysis by the means of the finite element method (FEM) is a common approach for dimensioning piezoelectric motors...