| 释义 |
snubber|ˈsnʌbə(r)|
[f. snub v.1]
1. One who administers a snub or snubs.
1861Sat. Rev. 14 Sept. 269 Either the snubber has authority on his side,..or perhaps we have given way to enthusiasm, and are met by ridicule. 1880‘Ouida’ Moths III. 18 The disagreeable snappers and snubbers and snarlers.
2. U.S. One who snubs a rope or boat; a device for snubbing or checking.
1853in Thornton Amer. Gloss. (1912) II. 825 A snubber..snubs the boat when she heaves to on the heel-path shore. 1875Knight Dict. Mech. 2231/2 Snubber, a cable-stopper.
3. a. A simple form of shock-absorber used esp. in motor vehicles. Freq. attrib.
1921Daily Colonist (Victoria, B.C.) 22 Oct. 10/7 (Advt.), Gabriel snubbers increase the riding comfort of any car. 1928Sunday Dispatch 19 Aug. 8 New snubber plates are fitted on the front springs. 1956Toboldt & Purvis Automotive Encycl. 30d/1 The first so called ‘shock absorbers’ were simple rebound absorbers or snubbers. 1961Aeroplane C. 429/1 The second-stage rotor blades have been fitted with ‘snubbers’ at approximately their mean height. 1970Telegraph (Brisbane) 18 Dec. 8/1 The trouble with our washing machine..was that it needed a new snubber spring. 1973R. L. Eshleman in Snowdon & Ungar Isolation of Mech. Vibration, Impact, & Noise 228 The friction snubber utilizes coulomb friction between a liner material and the snubber wall. 1980Truck & Bus Transportation (Austral.) Jan. 32/3 The snubber consists of an endless circle of chain encased in a solid block of rubber.
b. Electronics. A circuit intended to suppress voltage spikes.
1968IEEE Trans. Industry & General Applications IV. 666/2 With properly damped snubber circuits the commutation transient waveshapes are such that the initial dv/dt is highest. 1977Design Engin. July 27/1 All thyristor installations normally require a snubber, or dv/dt suppression network consisting of a capacitor and resistor in series across the device.
c. A device used to damp pulsations in, or check the flow of, a fluid.
1972L. J. Lortie in Blake & Mitchell Vibration & Acoustic Measurement Handbk. xxvii. 542 Using the simple snubber (expansion chamber)..which is made of standard piping components, an original pulse amplitude of 100 pressure units may usually be reduced to the order of ten or five units. 1977Sci. Amer. June 46/2 The rate of descent of the piston is predetermined by the setting of the flow snubber in the dividing plate, which admits the water into the lower half of the cylinder. |