explosion frequency 中文意思是什麼
explosion frequency
解釋
脈沖頻率-
( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope
（三）採用模態疊加法針對爆破動力作用，進行邊坡的動力響應分析，得出了以下結論： （ 1 ）振動頻率為0 . 3hz時，坡面頂部水平向加速度峰值最大；綜合考慮，可認為該邊坡的自振頻率為0 . 3hz左右； （ 2 ）地形對爆破地振動存在放大作用，研究剖面的坡面，水平向加速度及位移在地形相對高差45米左右最大，而後隨相對高差的增高而減小，相對高差為100米時，水平向位移及加速度絕對值均大於坡腳； （ 3 ）強迫振動段，水平向加速度值隨時間變化的規律為：坡頂節點總的變化趨勢是越來越大，而坡體中部節點的變化趨勢是越來越小； （ 4 ）當爆破振速較小時，變形破壞的形式表現為坡頂表面滑塌型。 -
Feature extraction ontime - frequency plane for seismicpatter n recognition of nuclear explosion
核爆地震波的時頻特徵 -
This paper presents structure, operation, performance of various variable apeed drives for in - use wire - rope driven belt conveyors, as well as application of explosion - proof variable frequency variable speed device on wire - rope driven belt conveyor in coal mine
摘要分析比較了在用的鋼繩牽引帶式輸送機調速驅動機構的結構組成、工作原理、性能，介紹了防爆變頻調速裝置在煤礦井下鋼繩牽引帶式輸送機上的使用情況、優點等。 -
Time - frequency analysis of explosion seismic effects
爆炸地震效應的時頻分析 -
Through the analysis of the affecting factors of blasting vibration frequency, the paper points out that the transformation of blasting condition and test condition should be paid full attention to in the measurement analyses of explosion vibration
通過對爆破振動頻率影響因素的分析，指出在爆破振動的測試分析中應充分注意到爆破條件和測試條件的變化。
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