roll frequency 中文意思是什麼
roll frequency
解釋
滾轉振動頻率-
Series of guowei dry - method composite machines as new product are explored with our many years ' experience, the requirement of the users. the first metal of this machine is adopted with : photo - ecectricity auto. tracking " correcting deviation equipment, magnetic powder tension control. pneumatic back pressure shifting blade, oven temperature controlled qutomatically, big roll with oil heating, coating composite pneumatic control as well as double frequency governor etc. it will make the machine with fast speed, lower voice, low polluted by air, shout consumptionfor energy, stable working etc. especially suitable for al - foil with smooth surface and no enough firming, glass paper, polyester ect. the composite material with hard strength, fireproof, anti - ventilation, anti - fatty, frozen, dudrable steam etc character. it is widely used in food, pharmacy, as well as daily articles to package
「國偉」 、系列乾式復合機，是我廠根據多年的復合機製造經驗及結合客戶需求，開發的新產品，該機第一基材採用了「光電自動跟蹤」糾偏放卷裝置，磁粉張力控制、氣動背壓移動式刮刀、烘箱溫度分段自動控制、大輥筒導熱油加熱、上膠復合氣動控制及雙變頻調速技術，使該機具有復合速度快、噪聲低、空氣污染小、能耗低、運行平穩等特點，適宜於表面光滑的鋁箔玻璃紙聚酰胺等與聚乙烯、聚丙烯等薄膜的復合，復合薄膜具有強度高、防水、防透氣、防油脂、可冷凍、蒸煮等優點，廣泛應用冷凍食品、乾燥食品、醫藥品及日用品的包裝。 -
Our company owns developed production technology & equipment such as digital controlled roll grinding machine, digital controlled roll lathe, double - frequency induction thermal treatment equipment, and developed on - line inspection instrument
公司擁有先進的生產技術裝備和健全的檢測體系，有國外引進數控軋輥磨床、國產先進的數控軋輥車床；具有國際一流水平的大型軋輥雙頻感應熱處理設備；具有先進水平的在線檢測儀器。 -
The machine is composed of an automatic roll - releasing device, connecting platform, an automatic margin - cutting mechanism, an automatic tube forming device, a high frequency welding mechanism, the vertical and horizontal traction devices, an automatic synchronous revolving cutting mechanism and a computer control system
本機組主要包括：自動放卷裝置，對接平臺，自動切邊機構，自動成型裝置，高頻焊接機構，垂直、水平牽引機構，自動控制跟蹤旋切裝置及人機界面控制系統。 -
Individual infinite variable speed drive of each roll with ac - motors coupled to programmable frequency inverters
電機驅動方式為交流變頻無極變速驅動。 -
In the light of the signals of roll angle and water level, we can control the air valve, and use this control method to simulate the controlled passively anti - rolling tank. simulation results indicate that this control strategy is feasible. the controlled passively anti - rolling tank can work in the wide frequency range
控制策略是根據橫搖角度和邊艙液位信號的變化來對氣閥進行控制，採用這種控制策略對可控被動式減搖水艙進行了模擬研究，結果表明所控制策略是行之有效的，可控被動式減搖水艙能在更寬的頻率范圍內達到較好的減搖效果。 -
Ground roll wave has characteristics of strong energy, low frequency and slow attenuation
摘要面波具有能量強、頻率低、吸收衰減緩慢等特點。 -
A time - frequency analysis method is presented to solve paper machine press section bearing vibration signals of unstable and complication, applying wavelet function to the unstable signals for faulty bearing according to paper machine press section roll bearing characteristic, and process the vibration signals by means of decomposition and reconstruction, obtaining the vibration signals in different frequency bands, the statistic in frequency domain of relevant frequency bands is served as monitoring feature
摘要針對紙機壓榨部滾動軸承尺寸大響應弱、運轉速度低、低頻信號容易淹沒、調制源多、振動信號非平穩性等特點而導致常規的傅立葉分析診斷故障效果不佳的情況，提出了一種應用小波變換的時頻分析方法，對振動信號進行分解和重構處理，獲得了振動信號在不同的頻段的分量，提取相應特徵頻段重構分量的功率譜的頻域統計值作為特徵參數，從而實現對軸承故障診斷。
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