V2EX driving term

Driving Term

释义 Definition

driving term: (尤指在微分方程、物理或控制系统中)驱动项 / 驱动项(外力项、强迫项),指使系统产生响应、推动系统变化的那一项(常对应外部输入或周期性激励)。在很多语境下也可近似理解为 forcing term(强迫项)

发音 Pronunciation (IPA)

/drav tm/

例句 Examples

The driving term makes the oscillator move.
驱动项会让振子运动起来。

In the differential equation, the driving term represents an external force that can cause resonance at certain frequencies.
在这个微分方程中,驱动项代表外力,它可能在某些频率下引发共振。

词源 Etymology

driving 来自动词 drive(“驱动、推动”),可追溯到古英语 drīfan,有“推动、赶动”之意;term 来自拉丁语 terminus(“界限、词语/项”)。合起来 driving term 字面意思就是“起驱动作用的那一项”,常用于描述方程或模型中“推动系统”的部分。

相关词 Related Words

文学与名著用例 Literary & Notable Works

  • The Feynman Lectures on Physics(费曼《物理学讲义》):在受迫振动/外力驱动的讨论中常出现与 driving term 对应的表述(如“driving force/forcing term”)。
  • Classical Mechanics(Herbert Goldstein 等,《经典力学》):在受迫振子、拉格朗日方程与外加驱动的建模中常见该概念。
  • Differential Equations with Applications and Historical Notes(George F. Simmons,《微分方程:应用与历史注记》):讲解非齐次微分方程时会使用与 driving/forcing term 同义的术语体系。
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