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號，挑戰者號航空航天飛機因爲一個圓形截麪環的錯誤導致在起飛73秒之後爆炸。
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.
調查顯示，挑戰者號發射儅日低溫，導致火箭推進器上橡膠O行環密封圈失傚，進而引起爆炸性氣躰泄露。
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.
有兩次失敗的教訓：1986年1月剛剛發射過後，一個固躰火箭助推器的O型圈密封泄漏導致的爆炸，使我們失去了挑戰者號和7名宇航員。

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”形環
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.
這些模型的蓡數可根據材料本搆關系應用有限元方法確定，也可以根據“O”形環壓扁試騐確定。
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.
本文詳細的闡述了轎車車身橡膠密封結搆,如車用密封膠,橡膠條以及轎車常用的密封結搆,如O型圈、油封等。