V2EX quasistatic

Quasistatic

释义 Definition

准静态的(物理/工程):指一个过程变化得足够缓慢,使系统在任意时刻都可以近似看作处于静态平衡(或接近平衡),从而可用静态关系来分析。常见于热力学、材料力学、电路与电磁学等语境。(在某些领域也可写作 quasi-static。)

发音 Pronunciation

/kwezasttk/
/kwezisttk/

例句 Examples

The compression is quasistatic, so we can treat the pressure as uniform.
这种压缩是准静态的,因此我们可以把压力近似看作均匀的。

Under quasistatic loading, the material response is assumed to follow the equilibrium stressstrain curve at each instant, neglecting inertial effects.
在准静态加载下,通常假设材料在每一时刻都沿着平衡的应力应变曲线响应,并忽略惯性效应。

词源 Etymology

由前缀 **quasi-**(“类似于、近似”)+ static(“静态的”)构成,字面意思是“近似静态”。该词用来强调:虽然过程仍在变化,但变化足够慢,以至于可以用“静态/平衡”的方法近似处理。

相关词 Related Words

文学与著作 Literary Works

  • Richard P. Feynman, Robert B. Leighton, Matthew Sands The Feynman Lectures on Physics(《费曼物理学讲义》)
  • L. D. Landau, E. M. Lifshitz Mechanics(《力学》,“朗道-栗弗席兹”系列)
  • John D. Jackson Classical Electrodynamics(《经典电动力学》)
  • R. Byron Bird, Warren E. Stewart, Edwin N. Lightfoot Transport Phenomena(《传递现象》)
  • Charles Kittel Introduction to Solid State Physics(《固体物理导论》)
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