### Some articles on *mode, modes, shape, mode shape, mode shapes, shapes*:

Interferometry - Applications - Engineering and Applied Science

... Single-

... Single-

**mode**lasers employ etalons to suppress all optical cavity**modes**except the single one of interest ... diffracted beam, however, is modified to match the desired**shape**of the test surface ... If a**mode**-locked laser is modulated to form a train of pulses, its spectrum is seen to consist of the carrier frequency surrounded by a closely spaced comb of optical sideband ...Eigentone - Nodes

... In a one dimensional system at a given

... In a one dimensional system at a given

**mode**the vibration will have nodes, or places where the displacement is always zero ... These nodes correspond to points in the**mode shape**where the**mode shape**is zero ... Since the vibration of a system is given by the**mode shape**multiplied by a time function, the displacement of the node points remain zero at all times ...Vibration - Multiple Degrees of Freedom Systems and

... These eigenvectors represent the

**Mode Shape**s - Eigenvalue Problem... These eigenvectors represent the

**mode shapes**of the system ... The two**mode shapes**for the respective natural frequencies are given as Since the system is a 2 DOF system, there are two**modes**with their respective natural frequencies and**shapes**... The**mode shape**vectors are not the absolute motion, but just describe relative motion of the degrees of freedom ...Structural Dynamics - Modal Analysis - Energy Method

... It is possible to calculate the frequency of different

... It is possible to calculate the frequency of different

**mode shape**of system manually by the energy method ... For a given**mode shape**of a multiple degree of freedom system you can find an "equivalent" mass, stiffness and applied force for a single degree of freedom system ... For simple structures the basic**mode shapes**can be found by inspection, but it is not a conservative method ...Rayleigh-Ritz Method

... case, where the system has two lumped springs and two lumped masses, and only two

... case, where the system has two lumped springs and two lumped masses, and only two

**mode shapes**are assumed ... A**mode shape**is assumed for the system, with two terms, one of which is weighted by a factor B, e.g ... so, since KE = PE, Note that the overall amplitude of the**mode shape**cancels out from each side, always ...### Famous quotes containing the words shape and/or mode:

“Thir dread commander: he above the rest

In *shape* and gesture proudly eminent

Stood like a Towr; his form had yet not lost

All her Original brightness, nor appear’d

Less than Arch Angel ruind, and th’ excess

Of Glory obscur’d: As when the Sun new ris’n

Looks through the Horizontal misty Air

Shorn of his Beams, or from behind the Moon

In dim Eclips disastrous twilight sheds

On half the Nations, and with fear of change

Perplexes Monarchs.”

—John Milton (1608–1674)

“The body sins once, and has done with its sin, for action is a *mode* of purification. Nothing remains then but the recollection of a pleasure, or the luxury of a regret.”

—Oscar Wilde (1854–1900)

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