Hydraulic differential electric servo cylinders are electromechanical tools applicable for driving e.g. manipulators. Actual models are strongly nonlinear, coupled systems of differential equations. In the present paper we propose a new model using fuzzy differential equations under strongly generalized differentiability concept. The key point is a continuous fuzzyfication of the signum functio...

Electric power is mainly derived from a combination of an engine and a motor. The motor converts electrical power into mechanical energy, which is widely used in home appliances and industrial mechanical tools. When addressing specific applications, motor-driven tools generally need to make speed changes or have accurate positioning. In these applications, it is necessary to have a highly effic...

A hydraulic catapult system is proposed to simulate the movement of missile in launch tube, which mainly consists a high-speed cylinder, an accumulator group, main valve, servo valve and cable pulley mechanism. The key technical difficulties are that how improve response speed big flux increase limited stroke. An ingenious controlled designed mechanism applied lever. working principle design me...

In numerous industries, especially in automation and industrial processes, the linear servo mechanism is used. However, parameters of friction backlash models are frequently unknown for servomechanism systems, resulting system uncertainty. High steady-state inaccuracy caused by friction, whereas undesired vibration blowback. an issue that still not sufficiently addressed a realistic model. To a...

The research proposed the design and installation of DC motor with a feedback position used to control steering direction rice-planting machine here will be converted into driverless robots. MATLAB/Simulink software is simulate measure signal drive from servo controller board obtain results that can BTS 7960 driver module for position. SkyDroid T10 remote machines mechanism all test robot spray...

This works shows the conceptual development of a finger mechanism for a prothestic hand. Three degrees of freedom of the finger are actuated by single DC motor, characterizing therefore an underactuated mechanical system. Mechanical torque developed by the motor is transmitted to the phalanges through tendons and is converted into flexion and extension torques by means of small pulleys. The ten...

The friction is detrimental to the normal work of the servo system, but the friction mechanism is very complicated. In this paper, Tustin friction model is used as the friction parameter identification, reflecting the phenomenon of friction in the system, and laying the foundation for the friction compensation. Tustin model is a nonlinear friction one, and the friction properties can be reflect...

A wavelength scanning interferometry system for fast areal surface measurement of micro and nano-scale surfaces which is immune to environmental noise is introduced in this paper. It can be used for surface measurement of discontinuous surface profiles by producing phase shifts without any mechanical scanning process. White light spectral scanning interferometry, together with an acousto-optic ...