eccentric

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eccentric,

in mechanics, device for changing rotary to back-and-forth motion. A disk is mounted off center on a shaft. One flat, open, circular end of a rod fits around the edge of the disk; the other end is usually attached to a block that slides in a slot. As the shaft rotates the block slides back and forth, carrying along whatever is attached to it, e.g., a valve. The distance between the center of the shaft and the center of the disk is the eccentricity. The so-called throw may mean either the eccentricity or the distance the block moves, which is twice the eccentricity. Camscam,
mechanical device for converting a rotating motion into a reciprocating, or back-and-forth, motion, or for changing a simple motion into a complex one. A simple form of cam is a circular disk set eccentrically on a shaft in order to induce (when the shaft rotates) a rising
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 and crankscrank,
mechanical linkage consisting of a bar attached to a pivot at one of its ends in such a way that it is capable of rotating through a complete circle about the pivot.
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 perform the same function as the eccentric, which designers often prefer to the crank for short motions.

Eccentric

Not having the same center or center line; departing or deviating from the conventional or established norm.

Eccentric

(religion, spiritualism, and occult)

In astronomy, eccentricity refers to an elliptical orbit, specifically to the extent to which the ellipse described by a celestial body’s orbit departs from a perfect circle, expressed by the ratio of the major to the minor axis.

Eccentric

 

in astronomy, an auxiliary circle in the geocentric system of the world, introduced by Hipparchus to represent the annual revolution of the sun around the earth through motion along a circle with constant angular velocity. The nonuniformity of the sun’s motion along the ecliptic was attributed to the fact

Figure 1

that the sun moved (uniformly) along the circumference of an eccentric, whose center C did not coincide with the earth T (see Figure 1).


Eccentric

 

a circular disk whose axis of rotation does not coincide with its geometric center. In cam mechanisms, an eccentric, acting upon a rod that moves in a straight line, communicates to the rod a harmonic motion such that the displacement of the rod is proportional to the cosine (or sine) of the eccentric’s rotation angle. In linkage, an eccentric acts as a crank, that is, as a link that makes a complete revolution around its axis of rotation. Such an application of an eccentric is efficient when the crank (its throw equal to the eccentricity of an eccentric) must be very short. Eccentrics are also used in lathe attachments to clamp details that are being machined.

eccentric

[ek′sen·trik]
(science and technology)
Situated to one side with reference to a center.

eccentric

eccentric head and shaft
Not having the same center or center line.

eccentric

1. situated away from the centre or the axis
2. not having a common centre
3. a device for converting rotary motion to reciprocating motion
References in periodicals archive ?
Eccentrically braced system was presented in 1978 by Popov et al [3].
The eccentrically English show, which originated from a threeminute sketch in the comedienne's 1980s TV show, has big songs, big characters and lots of funny business.
The hip-hop artist describes himself in publicity material as "an unapologetically louche rapper with an eccentrically mannered flow.
The ambience is laid back and friendly, with a simple menu of pizzas (including, rather eccentrically, aromatic duck with hoi sin sauce, complete with cucumber and spring onion), various pastas and risottos, and a small selection of mains and desserts.
We've worked on a number of projects in Qatar including fire repair scope, form and pump concrete section enlargements, installation of PTFE bearing plates to repair a pinned slab, post-tension bar installation for eccentrically loaded columns, and carbon fiber reinforced polymer sheet (CFRP) strengthening.
Her camp has since maintained that the star acted eccentrically due to her constant use of marijuana.
Black and white planes eccentrically alternate yet cohere; it's as though the ships have become optical illusions--Op art--even as they remain tidily streamlined.
Honestly, of all the issues going on with the eccentrically schizophrenic pop superstar, I would have thought weight was the least of her worries.
That's why it's called Fylm (spelt as eccentrically as you might expect).
Differently, during resisting at the leg-press machine, the quadriceps contracts eccentrically, whereas the biceps femoris contracts mildly concentrically--to allow movement precision.
Cleo says: "In the half light, we decided that the most famous icon of the modern world might just just pass for a rather eccentrically dressed gay male model.
The muscle is generally stronger working concentrically rather than eccentrically, which is why most hamstring injuries occur during the eccentric phase.