Dynamic flexibility and reflective scheduling model with self - adaptive characteristic 具有自適應特性的反射式動態(tài)彈性調(diào)度模型
Spline based semi - analytical procedure for dynamic flexibility of visco - elastic non - homogeneous foundation 粘彈性非均質(zhì)地基動力柔度的樣條半解析解法
In reporting services , expressions are used to provide dynamic flexibility for controlling the content and appearance of a report 在reporting services中,表達式用于動態(tài)地、靈活地控制報表的內(nèi)容和外觀。
In the article , it is emphasized on the generally applied adaptive control , sky - hook control and optimum control integrating with the theory and technique of active vibration control on the base of vibration model of vehicle suspension . three performance targets : acceleration of vehicle body , dynamic flexibility of suspension and dynamic load of tyre are evaluated 論文在建立汽車懸架振動模型的基礎上,結合振動主動控制的理論和技術,著重研究了被廣泛應用的自適應控制、空鉤控制和最優(yōu)控制,并通過計算機進行仿真,對車身加速度、懸架動撓度和輪胎動載荷三個性能指標進行了評價。
Because the different stiffness match of front and rear suspension is very influencing to the ride comfort , optimal model of ride comfort is developed , regarding the rms of driver ’ s acceleration as the objection , regarding the stiffness of front and back suspension as optimal variable , regarding quiet flexibility 、 dynamic flexibility 、 frequency and dynamic load as nonlinear constraints . by matlab program and using sqp , the optimal match of front and back suspension ’ s stiffness is achieved , this optimal model consider not only request of quiet 、 dynamic flexibility 、 frequency and damp , but also security of run and peace of road , it is closer to the fact than other models which only consider partial restriction 由于前后懸架垂直剛度的不同匹配對汽車行駛平順性影響較大,論文建立以駕駛員垂直加速度的均方根值作為汽車行駛平順性優(yōu)化目標值、以前后懸架垂直剛度作為優(yōu)化變量的優(yōu)化設計模型,并輔以靜撓度、動撓度、頻率、動載荷等非線性約束,使用序列二次規(guī)劃法,利用matlab編制優(yōu)化程序,求得前后懸架垂直剛度的最優(yōu)匹配值;此優(yōu)化模型不僅包含動靜撓度及頻率和阻尼的限制,還考慮到汽車的行駛安全性和道路友好性,比文獻報道的只考慮部分約束的優(yōu)化模型更切合實際情況。