D'Alembert's Form of The Principle of Virtual Work
The equations of motion for a mechanical system of rigid bodies can be determined using D'Alembert's form of the principle of virtual work. The principle of virtual work is used to study the static equilibrium of a system of rigid bodies, however by introducing acceleration terms in Newton's laws this approach is generalized to define dynamic equilibrium.
Read more about this topic: Rigid Body Dynamics
Famous quotes containing the words form, principle, virtual and/or work:
“The dignity of art probably appears most eminently with music since it does not have any material that needs to be discounted. Music is all form and content and elevates and ennobles everything that it expresses.”
—Johann Wolfgang Von Goethe (1749–1832)
“A certain secret jealousy of the British Minister is always lurking in the breast of every American Senator, if he is truly democratic; for democracy, rightly understood, is the government of the people, by the people, for the benefit of Senators, and there is always a danger that the British Minister may not understand this political principle as he should.”
—Henry Brooks Adams (1838–1918)
“Neither dead nor alive, the hostage is suspended by an incalculable outcome. It is not his destiny that awaits for him, nor his own death, but anonymous chance, which can only seem to him something absolutely arbitrary.... He is in a state of radical emergency, of virtual extermination.”
—Jean Baudrillard (b. 1929)
“People here are funny. They work so hard at living, they forget how to live.”
—Robert Riskin (1897–1955)