| 释义 |
Unstable equilibrium
| See Stable equilibrium, under Stable. |
See also: Unstable unstable equilibrium
unstable equilibrium[¦ən′stā·bəl ē·kwə′lib·rē·əm] (physics) An equilibrium state of a system in which any departure of the system from equilibrium gives rise to forces or tendencies moving the system further away from equilibrium; for example, mechanical equilibrium in which the potential energy is a maximum, as a sphere sitting on top of a hill. unstable equilibriumThe condition of a structure in a state of equilibrium; when a slight disturbance is applied to the structure and then removed, the structure does not return to its original equilibrium position. Compare with stable equilibrium.unstable equilibrium
un·sta·ble e·qui·lib·ri·umequilibrium in which the response to a small perturbation will tend to make the perturbation greater (for example, a logged feedback process of zero order). |