Analytical dynamics of a kirchhoff elastic rod expressed in quasi - coordinates 彈性桿分析動力學的準坐標表達
Dimension - reduced semi - analytical dynamic programming approach for solving unit commitment problem 一種求解機組組合優(yōu)化問題的降維半解析動態(tài)規(guī)劃方法
Analytical dynamic model for planar adjustable five - bar linkages of alterable length and inertia of linkages 桿長和慣性參數可變的平面可調五桿機構的動力學解析模型
Analytical dynamic model for planar adjustable five - bar linkages , in which link lengths and the inertia parameters of links can be changed , was established based on kinematic analysis , kane dynamic equation and numeric - symbolic approach 基于運動分析、凱恩動力學方程和數字符號方法,首次建立了桿長和慣性參數可變的平面可調五桿機構的動力學解析模型。
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(wèi)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(tài)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,并采用模態(tài)分析方法,進一步將撓性航天器的耦合方程規(guī)范化,使之適應于姿態(tài)控制系統的分析和設計。
百科解釋
In classical mechanics, analytical dynamics, or more briefly dynamics, is concerned about the relationship between motion of bodies and its causes, namely the forces acting on the bodies and the properties of the bodies (particularly mass and moment of inertia). The foundation of modern day dynamics is Newtonian mechanics and its reformulation as Lagrangian mechanics and Hamiltonian mechanics.