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The diagrams of damping valve with annular slice and hydro-pneumatic spring are given. According to the calculation method of the sectional linear speed characteristic, the damping coefficients and the resistance values at the valve open point and the maximal valve open point are deduced. Based on the principles of sheet deformation and aperture throttle, the function relation between flow and pressure...
Piston wind have a great impact on thermal environment of subway platform, using cooling damping wind can control piston wind ingress and improve heat environment. Cross-jet flow theory is used to analyze piston wind control by cooling damping wind and computational fluid dynamics (CFD) method are adopted in this paper. Different angle and height of nozzle are simulated. The angle of the air supply...
On the base of the vibration mechanical model and the motion equation of automobile suspension built. Analyze and bring forward the performance evaluation index of the suspension, and put forward the new testing method of the suspension performance. Using the virtual instrument technology, we develop the automobile suspension performance testing system. It adopts the PC-DAQ scheme. On the base of...
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