Synchronization Control Simulation for Pneumatic Elevator Based on AMESim
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 theoretical guidance is provided for synchronization control of real system.
Smart components-based servo pneumatic actuation systems
Abstract Pneumatic drives are the most widely used form of industrial actuation system. However, research in relevant areas is very limited, often carried out, if at all, in isolated environments. There is a lack of strategic thinking and tools, which can enable developments to go forward in an efficient manner. In recognising the advancements in PC-technology, fieldbus systems, microprocessors and computing technologies, the authors advocate the concept of smart components-based servo pneumatic actuation systems. The paper expands on the components-based nature of pneumatic drive systems to identify design templates for smart valves, smart sensors, smart actuators, etc. The development of components-based pneumatic drive systems is considered in the context of a recently completed UK EPSRC funded research project on high speed servo-pneumatic actuation, addressing issues such as simulation tools, algorithm development, sizing, tuning, installation and commissioning. A high speed pneumatically-driven gantry pick-and-place handling system with novel design features is presented to demonstrate the capability and attributes of pneumatic drives for more sophisticated applications.
Health-care practices of the rural aged.
1. One of the primary concerns of the rural aged is the maintenance of their physical health so that they may function independently and remain in their own homes. 2. The findings of this study indicate that most older rural adults do not regularly have positive health-care practices. This may be due to the unavailability of health-care providers or health promotion programs in isolated rural areas. 3. Implications of this study include the need to make health promotion programs relevant to the concerns of the rural aged rather than those of the urban elderly.