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According to experiments data and fault tree analysis, eight feature parameters are selected as follows: (1)iodine cavity pressure; (2)wenshi pipe pressure; (3)p-t curve; (4)main helium pressure; (5)chlorine pressure; (6)oxygen generator pressure; (7)upper pressure; (8)cavity pressure; four faults are selected: (1)the iodine nozzle jam; (2)the pneumatic valve of iodine does not open entirely; (3)valves...
This paper researches structure design of dry powder inhalers on clinical use for improvement, based on the theory of ergonomic from the perspective of efficiency, security and flexibility, puts forward a solution and builds up a control model of the system to verify its feasibility. So the improved dry powder inhaler is efficient and easy to use, meeting with the needs of patients.
In this paper, aim at mechanical hand brake circuit to establish the hydraulic model, utilize AMESim and MATLAB software to simulate the brake circuit, analysis circuit characteristic and the factors which impact brake circuit characteristic, find out the key factors that affect the braking circuit braking characteristics. And analysis simulation results, it show that the conclusion right and it is...
In order to improve fuel economy and reduce exhaust gas emissions, hybrid and electric vehicles use the electric motor as a generator for regenerative brake during deceleration, which converts kinetic energy of the vehicle into electrical energy. To maximize the recovery of braking energy, special brake system is needed to blend control the regenerative brake force and hydraulic brake force. This...
This paper implements a PLC(programmable logic controller) based virtual instrument that performs measure and control in mechanical characteristics test for flow control throttle in gas pipeline. The development of the instrument is based on PLC and LabVIEW IDE, which features a novel combination of leading industrial control tools to construct the virtual instrument. Since OPC(OLE for process control)...
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