ADVANCED CONTROL TECHNOLOGY (ACT) TDM-2FS-200H-SC FLOPPY & HD DISK VME MODULE 由于脫離嚙合瞬時,在0%)坐標系內柔輪齒的坐標應與之相接觸的剛輪齒坐標相等,其應的夾角為嚙合角史',設史(、史2為與史相應的柔輪齒中線和剛輪齒槽中線的夾角,圖中點為柔輪在未變形時在柔輪原始曲線上的點。由于變形后點產生切向位移V,因而其實際坐標角應為化又考慮到輪齒稱軸線轉動M角和齒厚的影響,因而柔輪齒的坐標角應為而!2為4刀套參數與特性如所示,刀套材料采用45鋼,經熱處理調質(HB200-240),

使其具有更的綜合機械性能。刀套與刀桿的配合尺寸采用較大的間隙,即0.5~),0.5~),其目的是在實際操作時,既能保證刀桿順利插入刀套,又能保證擰緊刀架上的螺栓,刀套靠彈性變形能有效地壓緊刀桿。因此在使用雙坡面刀具進行切斷加工時,只需將刀桿往刀套內插,調整伸縮長度再擰緊刀架螺栓即可為了更的抑制EMI,有文章研究了這種噪聲的產生和傳播機理,但大多數的分析是基于利用寄生電路的集中參數電路,所研究的頻率范圍不超過幾MHz.些改進的方法能夠在高達數十MHz的頻率得到比較滿意的EMI預測,但是都包括復雜的以經驗為主測量的參數和SABER中的器件模型,需要冗長的計算時間。
從EMI故障診斷W的角度來看,只研究干擾的頻譜不足以解決全部問題,單個干擾脈沖的強度和寬度等因素都影響干擾的效果,而這些是頻譜圖不能清楚反映出的,所以在電磁兼容問題中還需要具體研究干擾的時域波形。多數文章集中于討論裝置電網側的EMI發射,很少提及接地電流通過接地面其他裝置的EMI問題。而且隨著開關元件的動作,主電路的拓撲結構是變化的,這EMI問題的影響有多大也很少有人研究。本文采用了種便捷的系統函數法,通過幾次簡單的測試就可比較全面地分析PWM調速系統中接地電流的EMI特性。主要的傳播通道。部分接地電流經過C,2從電機側流出并由Csl返回逆變器,其余的則流入電網側。電機側的接地電流可以用個如所示的電流探頭測量。
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