Rail and armature joule heating of an electromagnetic rail gun 电磁轨道炮导轨和电枢中的焦耳热分析
It is difficult to achieve the analytical solution of temperature field with internal joule heat generation under steady state electric field , especially when the distribution of the joule heat is complicated 摘要在稳恒电场条件下,尤其是当焦耳热分布情况很复杂时,求解含焦耳热源的稳态热传导问题解析解具有一定的困难。
The main work lists as following : 1 on the condition that cfrc is an macroscopically isotropic material , the governing equations of electric and thermal conduction for the inspection were established ; the current density and joule heat distribution around several kinds of flaws were investigated 2 by fem , the process of inspection was simulated ; the current density , joule heat and temperature distribution were also investigated , and the simulation results were contrasted with experimental data 主要工作为: 1 、将机敏混凝土合理假定为宏观各向同性材料的基础上,建立了检测过程中的热、电传导相关的控制方程;并研究了几种不同缺陷周围检测过程中的电流密度、焦耳热分布规律。 2 、通过有限元方法对机敏混凝土的电热场进行了模拟分析,研究电流密度、焦耳热分布及试件表面温度分布变化规律并与实验所得试件表面温度场进行了对比分析研究。
焦耳: Joule Joule焦耳热加热: joule heating焦耳热量计: joule calorimeter焦耳热功当量: joule equivalent; joules equivalent焦耳热区域熔炼: joule heat zone melting; joule heat zone-melting焦耳: 1.joule (james prescott, 1818-1889 英国物理学家)2.[力学] (米千克秒制中功和能量单位) joule◇焦耳当量 [热学] joule equivalent; mechanical equivalent of heat; 焦耳定律 joule's law; 焦耳积分 joule integral; 焦耳计 joulemeter; 焦耳加热 joule heating; 焦耳循环 joule cycle1焦耳: erg ten毫焦耳: millijoule焦耳计: joulemeter焦耳秒: joule second焦耳能: joule energy焦耳斯: joules京焦耳: gigajoule千焦耳: kiljoule; kilojoule (kj)由焦耳: james prescott joule兆焦耳: megajoule耳热眼跳: ears hot and eyes twitching -- an omen of sth. going to happen酒酣耳热: have succumbed to the influence of many cups; one's ears flushed from wine.; one's good mood after a few drinks; in a state of drunken ecstasy面红耳热: with one's face flushed and one's ears hot莫耳热电偶: moll thermopile莫耳热容量: molar heat of capacity眼花耳热: eyes blurred and ears hot眼饧耳热: one's eyes burned and one's ears glowed次方焦耳: exajoule电磁焦耳: abjoule