- 地磁, 地磁學(xué)
- 地磁學(xué)；地磁現(xiàn)象
- 地球磁性
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geomagnetism中文什么意思
例句與用法
- Welcome to the bio - geomagnetism group of the pgl in beijing
歡迎來到北京生物地磁學(xué)實(shí)驗(yàn)室！ - The subway can influence the observation of geomagnetism , geoelectric field and ground resistivity around it , but the influencing mechanism is not same
摘要地鐵對周圍地磁、地電場、地電阻率的觀測都會產(chǎn)生影響，但影響的機(jī)理不盡相同。 - In this application , the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay . in this paper , we make an intensive study of the process of de - orbiting using electro - dynamic tether system . the concrete work includes : firstly , i have studied the basic principle of how to generate the electro - dynamic drag , modeled via accuracy geomagnetism , made a concrete analysis of the de - orbiting duration , the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models , set up a counterbalance between electro - dynamic torque and gravity gradient torque , emulate the de - orbiting process of spacecraft , and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基于電動力纜繩的航天器離軌過程進(jìn)行了深入研究,具體工作如下:首先,本文研究了電動力纜繩產(chǎn)生電動力拉力的基本原理,建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下,對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進(jìn)行了計算分析;建立了電動力力矩與纜繩系統(tǒng)重力梯度力矩的平衡關(guān)系;分析了電動力力矩為系統(tǒng)提供能量的原理;最后分別在偶極子地磁場模型和精確地磁場模型作用下,對受電動力纜繩作用的航天器的離軌過程進(jìn)行仿真,分析了在不同精度地磁場模型下,航天器離軌過程中各軌道參數(shù)的變化情況,并比較了不同模型對離軌時間的影響。