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It can be beneficial to reduce vibrations in shipboard piping, so the authors designed a new kind of piping damper with a
plunger-type accumulator. Special requirements for the piping damper included low impact displacement, low speed, as well
as an appropriate locking speed. Inside the damper, a plunger-type accumulator was installed and on the outside of the piston
rod, a tube with exposed corrugations was added. Between the piston and the cylinder, a clearance seal was added. Using mathematical
modeling, the effects of the dynamic performance of the damper’s impact displacement on vibrations were observed. Changes
to the clearance between the piston and the cylinder, the stiffness of the spring in the accumulator, the throttle valve size,
and locking speed resistance of the damper were respectively simulated and studied. Based on the results of the simulation,
dampers with optimal parameters were developed and tested with different accumulator spring stiffnesses and different throttles.
The simulation and experimental results showed that parameters such as seal clearance between piston and cylinder, accumulator
spring stiffness and throttle parameters have significant effects on the damper’s impact displacement, low speed resistance
and locking speed. 相似文献
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统计资料表明,从原料到成品,生产往往只占10%时间,其他90%的时间都可能浪费在各个环节的物流过程中,但这样的情形在苏州工业园区发生的可能性微乎其微。苏州没有海港,没有机场,发展物流产业"先天不足",然而这并不妨碍苏州成为江苏省的重要国际物流转换枢纽,周边的海港如上海港、宁波港,空港如虹 相似文献
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