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 ?
Experimental and analytical investigation of tubular links for eccentrically braced frames.
Two weeks later, the groups: LSLTEG, LSUTEG, and LSDTEG performed bout 2 exercises of eccentrically biased exercise at 80% of HRR for 45 min.
This workinvestigates the flow of an incompressible micropolar fluid between eccentrically placed disks.
These are intramedullary lesions, typically more centrally located than eccentrically, and are usually found in the metaphysis or diaphysis of long bones.
99[pounds sterling]) Not only one of the greatest of all travel books, but an eccentrically lyrical masterpiece, too
David Forrester was the perfect example of the capacity of the academy to absorb and fully utilize the eccentrically brilliant, which indeed he was.
Therefore, the maximum values of spun concrete strains and at the same time of resisting compressive stresses in reinforcing steel bars of concentrically and eccentrically loaded columns may be defined, respectively, as:
Eccentrically arranged and loaded with tangential asides it is fairly daunting to attempt reading through the material systematically.
Letter to a stranger In the strangely crowded street I saw you, stranger Dressed and walking strangely Your face surely unknown to me Our eyes met eccentrically You smiled strangely at me The nonsensical thought in me confirmed Your strangeness surrounded me My heart started beating bizarrely As you passed me by, stranger Your unfamiliar scent embraced me I outlandishly clung to it My eyes strangely followed you Disappearing into the strange crowded street You left me feeling peculiar Questioning the strangeness you brought me I am now out of the ordinary .
Despite earning hundreds of millions of dollars he was reported to be $500 million in debt thanks largely to his eccentrically extravagant lifestyle.
The neoplastic cells had acidophilic cytoplasm and hyperchromatic and eccentrically placed nuclei.