Virtual Work
Generalized forces can be obtained from the computation of the virtual work, δW, of the applied forces.
The virtual work of the forces, Fi, acting on the particles Pi, i=1,..., n, is given by
where δri is the virtual displacement of the particle Pi.
Read more about this topic: Generalized Forces
Famous quotes containing the words virtual and/or work:
“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)
“And men left down their work and came,
And women with petticoats coloured like flame.
And little bare feet that were blue with cold,
Went dancing back to the age of gold,
And all the world went gay, went gay,
For half an hour in the street to-day.”
—“Seumas” “O’Sullivan” (1879–1958)