V2EX variable load

Variable Load

释义 Definition

可变载荷/变动负载:指大小、方向或作用位置会随时间变化的载荷(在结构工程中常指“活载/变载”),也可指电力或机械系统中随工况变化的负荷(用电需求、扭矩需求等)。在不同领域含义侧重点略有不同。

发音 Pronunciation (IPA)

/veribl lod/

例句 Examples

A bridge must be designed to handle variable loads from traffic.
桥梁必须按车辆通行带来的可变载荷来设计。

Because the factory’s machines start and stop throughout the day, the power system faces a highly variable load, which requires careful planning.
由于工厂设备全天频繁启停,电力系统承受高度变动的负荷,因此需要周密规划。

词源 Etymology

variable 来自拉丁语 variabilis,意为“可改变的、易变的”;load 源自古英语 lād(与“运载、负担”相关)。组合为 variable load,直译即“会变化的负载/载荷”,用于描述在工程与能源语境中不恒定的受力或需求。

相关词 Related Words

文献作品 Literary / Notable Works

  • Roark’s Formulas for Stress and Strain(Roark《应力与应变公式》)
  • Shigley’s Mechanical Engineering Design(《希格利机械工程设计》)
  • Electric Machinery Fundamentals(Chapman《电机学基础》)
  • ASCE 7 Minimum Design Loads and Associated Criteria for Buildings and Other Structures(建筑与其他结构最小设计荷载标准)
  • IEC/IEEE 关于电力负荷与负荷曲线(load profiles)规划的相关标准与手册中常见该术语
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