振動數 的英文怎麼說
中文拼音 [zhèndòngshǔ]
振動數
英文
number of vibration-
In order to prove the feasibility of the control method mentioned, both the semiphysical test for the plant simulated by analogue computer and the model test for the cantilever beam are designed and finished with the study of the parameter selection in realization
對離線建模的智能旋翼頻域神經控制方法進行了試驗驗證研究，試驗分兩種情況：以模擬計算機模擬受控對象的半物理模擬試驗與懸臂梁振動響應控制試驗，並研究了實現中的參數選擇問題。The anharmonic effect of atomic vibration taken into account and from the potential energy which reacts each other among atoms, boltzmann statistical principle used, the relation formula of temperature and the distance change between atoms and coefficient of linear expansion is derived
摘要考慮原子振動的非簡諧效應，從原子間相互作用勢能入手，運用玻爾茲曼統計原理，推出了原子間距的變化與溫度的關系式，並導出了固體的線脹系數。Treating the anharmonic terms of potential energy as perturbations, and employing the formulas for atomic displacements and hamiltonian in phonon occupation number representation, the formulas for thermal expansion coefficients of crystal nano - wires are derived and the numerical calculations are carried out in this paper
摘要將原子間相互作用勢的非諧項作為微擾，運用聲子數表象中的晶格原子振動位移和晶格振動哈密頓公式，推導了納米晶體線的熱膨脹系數公式，並進行了數值計算。Abstract : considering the second nearest - neighbor interaction and cubic, quartic anharmonic interactions simultaneously, we employ the multiple scales method combined with a quasidiscreteness approximation to calculate the lattice vibration. it is shown that the kind of nonlinear chain exhibits envelope soliton, envelope kink and envelope antikink soliton. these results can also be used to explain the experimental phenomena that the kink amplitude of the self - localized structure is determined only by the intrinsic properties of its lattices
文摘:同時考慮次近鄰諧振相互作用和三次方、四次方非諧相互作用，利用多重尺度結合準離散近似方法去計算晶格振動行為，發現一維非線性點陣中存在包絡孤子及正扭結型包絡孤子、反扭結型包絡孤子，解釋了自局域結構的幅度只取決于點陣中的固有參數的實驗現象The communication between computer and plc is realized by the programming port, and the communication between computer and servo unit is realized by databus, and the cooperative control between plc and servo unit is realized by an audion
利用plc的編程口實現了計算機與plc的通信。利用數據總線實現了計算機與伺服單元的通信。利用三極體的通斷特性實現了plc控制列印頭振動與伺服單元控制電動執行機構運動的協調。Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box
綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。This paper proves that the changes of pre - compression on the windings have effects on their natural frequencies and derives their relation, which provides the experimental and theories foundation for fault diagnosis of large - scale electric transformers
通過對大型變壓器繞組進行振動實驗和根據建立的變壓器繞組軸向振動數學模型的理論推導，闡明了變壓器繞組預緊力的變化與其固有頻率變化之間的關系，這為大型變壓器的故障診斷提供了理論與實踐依據。Through the model the computerized analysis of speed, angle and acceleration of gear real tooth surface could be accomplished
考慮齒輪對嚙合過程中的正常嚙合、脫嚙和齒背嚙合及碰撞的情況建立齒輪傳動系統振動數學模型。Finally, the improved method is utilized to identify data acquired by vibration test of a honeycomb sandwich structure with different magnitudes, locations or vibration directions, and the identification results are used to analyze the characteristic of the structure in order to guide the further study of satellite structure ’ s design
最後利用改進后的dbm方法對幾組在不同量級、不同振動方向、不同測點的蜂窩板夾層結構的振動數據進行辨識，並利用辨識的結果對于結構的動力學特性進行分析，從而為實現對衛星結構的設計提供依據。Torsional vibration mathematical modeling of auger - bit principal axis of digging machine for tree planting and its solution
植樹挖坑機鉆頭主軸扭轉振動數學建模與求解Research on vibration data compress using wavelet decomposition and embedded coding of zerotrees of wavelet coefficients
小波分解及嵌入式小波系數零樹編碼在振動數據壓縮中的應用研究Method for reporting measured vibration data for land vehicles
陸地車輛測量的振動數據報告方法Method for measurement and reporting of shipboard vibration data
船舶振動數據的測量和報告方法Method for measurement and reporting of local vibration data of ship structures and equipment
船舶結構和設備局部振動數據的測量和報告方法And it has completed the construct of collectivity project and the basic principle of design, system scheme collectivity, item content, data collection of host and assist computer, analysis and data manage system, portable libration data analyse and collection, dcs net contact with mis net, and data longdistance transfers
完成了總體方案的構想及設計的基本原則、總體系統方案、項目內容、主機和輔機數據採集、分析及數據管理系統、便攜式振動數據採集分析系統、與dcs 、 mis聯網及數據遠程傳輸。First, a data collecting software for diesel engine vibration based on vb is developed after the hardware system has been jointed and accomplished
首先，在組建硬體平臺的基礎上，開發了一套以vb為軟體平臺的柴油機振動數據採集系統。The software can collect the diesel engine vibration signal with different channels, different kinds of frequency and different kind of gains ; it also can save the data files with different formats
整個系統能夠實現不同通道、不同頻率、不同增益的振動數據採集以及不同格式的數據保存，能夠進行基於分形的數據分析。According to the relationship between different transmission gears of rotatioft drive system, the system ' s torsion vibration model was built. the method of how to calculation the parameters and how to solve differential equation by state space method was presented in the paper
根據成角和轉角驅動系統中傳動級之間的扭矩和角速度的傳遞關系建立了兩個系統的扭振數學模型，具體給出了扭轉振動數學模型中各個參數的確定方法和應用狀態空間法求解該系統扭振模型二階微分方程的方法。It analyses static errors and dynamic errors, calculates vehicle plane every parts static and dynamic steel and bend distortion effect. it discusses testing means and testing equipment to oscillation, puts forward disposal means to oscillation data, fetches oscillation model of vehicle plane, does predigestion and coupling to all kinds of oscillations
分析了車載平臺的靜態誤差和動態誤差，計算車載平臺的各部分靜態、動態的剛度以及彎曲變形的影響。對振動的測試方法和測試設備進行了論述，提出對振動數據進行處理的方法，推導出車載平臺的振動模型，對各種振動進行了相應的簡化和耦合處理。Based on the fully analysis of modern wireless transmission technology and principle, reference of vast correlative papers and advanced wireless data transmission products in the world, summarization and reference of modem sensing technology and data acquisition technology, wireless data transmission module sa68d29m is selected, which satisfies the requirements of the modern in - situ vibration measurement
通過深入分析現代無線數據傳輸技術原理，在查閱大量相關文獻和國內外先進無線數傳產品、總結和借鑒現代傳感技術和數據採集技術的基礎上，選取了適合現代振動測試現場要求的無線數傳模塊sa68d29m ，設計完成了基於無線技術的振動數據採集系統。分享友人