virtual work principle — An Etymological Dictionary of Astronomy and Astrophysics

virtual work principle

پروز ِ کار ِ ویر‌آگین

parvaz-e kâr-e virâgin

Fr.: principe du travail virtuel

In → analytical mechanics, a principle whereby it is necessary and sufficient for the equilibrium of any material system with ideal constraints that the sum of the elements of work, performed by the applied forces acting on the system in any virtual displacement, be equal to zero (if all constraints are bilateral) or less than zero (if some of the constraints are unilateral).

See also: → virtual; → work; → principle.

An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک