O-ring

基本解释

The Space Shuttle Challenger was destroyed 73 seconds after takeoff due on January 28, 1986 due to a faulty O-ring.
1986年1月28号，挑战者号航空航天飞机因为一个圆形截面环的错误导致在起飞73秒之后爆炸。
Theinvestigation showed that low temperatures on the day of the launch caused arubber “O-ring” seal on one of the rocket boosters to fail, which led to a leakof explosive gases.
调查显示，挑战者号发射当日低温，导致火箭推进器上橡胶O行环密封圈失效，进而引起爆炸性气体泄露。
There have been two failures: The shuttle Challenger and seven astronauts were lost just after launch in January 1986 due to an O-ring seal leak in a solid rocket booster that led to an explosion.
有两次失败的教训：1986年1月刚刚发射过后，一个固体火箭助推器的O型圈密封泄漏导致的爆炸，使我们失去了挑战者号和7名宇航员。

Some of those Thiokol engineers expected o-ring failures at liftoff.
NPR: Challenger: Reporting a Disaster's Cold, Hard Facts
In the case of the Challenger, the culprit was a simple O-ring that had become too brittle to do its job after a freezing night waiting on the launch pad.
FORBES: BP Oil Spill Investigation Will Focus On Blowout Preventers
Way back in November of 1985, on just its second mission, Atlantis experienced a blow-back of hot gases past the primary O-rings in one of its solid rocket boosters, resulting in serious erosion of said O-ring.
ENGADGET: Space Shuttle Atlantis ends its run of predicting disaster for other NASA shuttles

“o”形环
TSM-α-I model was firstly recommended for sealing engineering. The parameters of these models can be obtained by finite analysis methods based on a material constitutive relationship or straightly by cyclic compressing-springback tests of a few O-ring specimens.
这些模型的参数可根据材料本构关系应用有限元方法确定，也可以根据“O”形环压扁试验确定。
o形圈

型圈
In this paper, a detailed car body rubber seal structure, such as automotive sealants, rubber, as well as used cars sealing structure, such as the O-ring, oil seal and so on.
本文详细的阐述了轿车车身橡胶密封结构,如车用密封胶,橡胶条以及轿车常用的密封结构,如O型圈、油封等。