For the research of simulation of synchronization control for pneumatic elevator, a model is builtin AMESim software. The simulations are used to research the impact of synchronous control strategy. The simulation results show that there are good synchronizing effects by applying pneumatic proportional technology and synchronization control with master-slave mode based on PID control. Some theo...

Abstract Hydro-pneumatic suspension is the important part of running system vehicle, with wider working frequency band, frequent reciprocating motion and heavy impact load, whose indicator sealing performance. The heat generation law hydro-pneumatic obtained under sinusoidal excitation by calculating method, bench test temperature suppression successfully achieved.

Micro assembly is typically characterised by positioning tolerances below a few micrometers. In the case of a hybrid micro system assembly, such as optical glass fibres, micro ball lenses or micro probes for measurement tasks, even positioning accuracies in the sub-micrometer range have to be achieved. Due to the need for highly accurate assembly systems and extensive alignment procedures the a...

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In the paper, the Electrorheological fluid(ERF) is embedded in the pneumatic vibration isolator and three kinds of control systems are designed, which experimental results are also compared. The first kind of the control system is the semi-active control system, which is designed for ERF controllable damper. The second kind of the control system is the active control system, which is designed f...

High force density, compact form factor and muscle like compliance properties makes pneumatics actuators quite desirable for robotic applications. However, the compressibility of the air not only throttles their bandwidth but also makes them harder to control. In this work, we leverage online trajectory optimization techniques to design high performance controllers for pneumatic actuators of AD...

This paper presents an approach to design a nonlinear controller for a pneumatic cylinder system for which the connection port comprises a non-negligible restriction. The pressure chamber of this system is difficult to control because the servo valve and the connection port form a double restriction. This double restriction causes a singularity in the feedback linearization controller. To avoid...

Charles Liernur’s Pneumatic Sewage System and the Governing of Soils This article interrogates epistemological conditions pneumatic sewage system in order to shed light on changing relation between soils Dutch society nineteenth century. The first section discusses hygienism, soil sewage. second unearths how design related agricultural chemistry Justus Liebig. Through epistemologies mediating t...

Multiple myeloma is a common disease that universally involves the skeletal system. Although rib involvement may occur, the development of pathological flail chest is rare. We describe the treatment and course of this condition in an elderly female, and the use of the bilevel positive airway pressure (BiPAP) ventilatory system in providing pneumatic stabilization, while definitive chemotherapy ...

Pneumatic Artificial Muscle (PAM) overcome the other common actuators as it has higher power-to-weight ratio. However, the air compressibility and lack of damping ability of PAM brings dynamic delay to the pressure response and causes oscillatory motion to occur. It is not easy to realize the motion with high accuracy and high speed due to all the non-linear characteristics of pneumatic system....