撓振作用 的英文怎麼說
中文拼音 [náozhènzuòyòng]
撓振作用
英文
panting action-
A precision force banacing accelerometer for ineration navigation application is developed. the resolution, low - sensitivity threshold and high thermal stability are considered as design parameters. in order to guarantee a low - sensitivity threshold while maintaining robustness against shock, push - pull type long flexures are used in this paper. to improve thermal stability, this paper discusses the use of electromagnets as a magnetic fied source. the silicon pendulum assembly and modified inducance type pick - up is also developed to reduce assembling procedure. the measure range of accelerometer is 0 - 70g
加速度計的解析度、靈敏度閾值和高的熱穩定性是設計時主要考慮的參數。本論文中使用推?挽式長撓性結構來保證低靈敏度閾值，同時保證抗振魯棒性。為了提高熱穩定性，本文中討論了利用永久磁鐵作為磁場源；微加工技術被引入擺組件的結構設計和利用力矩線圈作為激勵線圈來簡化電感式的檢測裝置。According to different mechanisms, there exist several types of resonance, including the bridge resonance induced by the periodical actions of moving load series of the weights, centrifugal forces and lateral winds of vehicles, the bridge resonance induced by the loading rates of moving load series of vehicles, the bridge resonance induced by the periodical loading of train vehicles excited by rail irregularities, wheel flats and hunting movements, and the vehicle resonance induced by periodical actions of the regular arrangement of bridge spans and their deflections
根據發生機理的不同，車橋系統可能發生幾種不同形式的共振，包括由車輛重量、離心力、橫向平均風荷載等形成移動荷載列的周期性動力作用引起的橋梁共振，由移動荷載列加載速率引起的橋梁共振，由軌道不平順、車輪扁疤、輪對蛇行等周期性加載引起的橋梁共振；由橋跨的規則性排列及其撓度的影響，對移動車輛形成周期性動力作用使車輛出現的共振。Based on the requirements of high precision pointing / targeting of advanced spacecraft, dynamic modeling of spacecraft with flexible appendages bonded with piezoelectric sensors / actuators, attitude control and active vibration suppression theory are studied deeply in this dissertation, which is funded by the research fund for the doctoral program of higher education of china item ? “ large flexible multi - bodies structure spacecraft active vibration control technology ” ( 20050213010 ). the main contents of this dissertation are as the follows : an approximate analytical dynamic model of a flexible spacecraft with surface bonded piezoelectric sensors and actuators is derived using hamilton ’ s principle with discretization by the assumed mode method. the model is then converted to state - space form for the purpose of control design
本學位論文結合高等學校博士學科點專項科研基金「撓性多體結構衛星主動振動控制技術研究」 （ 20050213010 ）課題，從理論上對粘貼有壓電智能元件的撓性航天器的建模、姿態控制和主動振動控制理論等展開了深入的研究，其研究內容主要包括以下幾個方面:利用hamilton原理推導了撓性航天器的動力學模型、壓電元件的作動方程及檢測方程，並採用模態分析方法，進一步將撓性航天器的耦合方程規范化，使之適應于姿態控制系統的分析和設計。Bending and vibration of the shaft of the charging pump used for mud pump occur owing to the pump " s special working conditions, resulting in the leakage of the shaft sealing system
由於鉆井泵用灌注泵的特殊工作條件，工作時泵軸產生較大撓曲和振動，從而造成軸封泄漏。Abstract : bending and vibration of the shaft of the charging pump used for mud pump occur owing to the pump " s special working conditions, resulting in the leakage of the shaft sealing system
文摘:由於鉆井泵用灌注泵的特殊工作條件，工作時泵軸產生較大撓曲和振動，從而造成軸封泄漏。In addition, the principle of component synthesis vibration suppressing ( csvs ) method is also briefly introduced and summarized to several lemmas, which can suppress flexible vibration by utilizing the character of vibration system itself and has the characters of simple, multiform, easy to apply and so on
另外，為了將分力合成方法應用於撓性系統的振動抑制，簡要地介紹了分力合成方法的一些基本概念及原理。針對採用推力器作為執行機構的撓性航天器姿態機動的振動抑制問題，提出了將分力合成振動抑制（ csvs ）方法和基於分佈壓電元件（ pzt ）的主動振動抑制技術相結合的一種復合主動控制方法。分享友人