- constraint independent of time
- 不变约束
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
constraint independent of time
Look at other dictionaries:
Constraint algorithm — In mechanics, a constraint algorithm is a method for satisfying constraints for bodies that obey Newton s equations of motion. There are three basic approaches to satisfying such constraints: choosing novel unconstrained coordinates ( internal… … Wikipedia
Constraint counting — In mathematics, constraint counting is a crude but often useful way of counting the number of free functions needed to specify a solution to a partial differential equation. Contents 1 Einstein strength 1.1 Linear equations 1.2 General solution… … Wikipedia
First class constraint — In Hamiltonian mechanics, consider a symplectic manifold M with a smooth Hamiltonian over it (for field theories, M would be infinite dimensional). Poisson bracketsSuppose we have some constraints : f i(x)=0, for n smooth functions :{ f i } {i=… … Wikipedia
Dynamic time warping — Not to be confused with the Time Warp mechanism for discrete event simulation, or the Time Warp Operating System that used this mechanism. Dynamic time warping (DTW) is an algorithm for measuring similarity between two sequences which may vary in … Wikipedia
Multibody system — A multibody system is used to model the dynamic behavior of interconnected rigid or flexible bodies, each of which may undergo large translational and rotational displacements. Contents 1 Introduction 2 Applications 3 Example 4 Concept … Wikipedia
Kalman filter — Roles of the variables in the Kalman filter. (Larger image here) In statistics, the Kalman filter is a mathematical method named after Rudolf E. Kálmán. Its purpose is to use measurements observed over time, containing noise (random variations)… … Wikipedia
Noether's theorem — This article discusses Emmy Noether s first theorem, which derives conserved quantities from symmetries. For her related theorem on infinite dimensional Lie algebras and differential equations, see Noether s second theorem. For her unrelated… … Wikipedia
Quantum mechanics — For a generally accessible and less technical introduction to the topic, see Introduction to quantum mechanics. Quantum mechanics … Wikipedia
Rigid rotor — The rigid rotor is a mechanical model that is used to explain rotating systems. An arbitrary rigid rotor is a 3 dimensional rigid object, such as a top. To orient such an object in space three angles are required. A special rigid rotor is the… … Wikipedia
Magnetoencephalography — Diagnostics Patient undergoing an MEG MeSH … Wikipedia
Fine-structure constant — The fine structure constant or Sommerfeld fine structure constant, usually denoted alpha ,, is the fundamental physical constant characterizing the strength of the electromagnetic interaction.It is a dimensionless quantity, and thus its numerical … Wikipedia
