2 ) research tolerance analysis modeling technique ; discuss one kind of vector loop based assembly tolerance analysis model , which takes fully account of dimension tolerance , geometric feature tolerance and kinematics effects 2 )研究公差分析建模技術(shù),討論一種基于矢量環(huán)的,包含產(chǎn)品零部件的尺寸公差、幾何特征公差以及運(yùn)動學(xué)影響的裝配公差分析模型。
The result showed that , with the equivalent substitution method of kinematic joint for error analysis , its computer - aided analysis was realized and the malady of tedium and complexity with the analysis and computation of the vector loop was eliminated , making the error analysis of the mechanism simple , easy , and reliable 結(jié)果表明,誤差分析的等價運(yùn)動連接替換法實(shí)現(xiàn)了計(jì)算機(jī)輔助分析,解決了向量環(huán)路分析計(jì)算量繁瑣的弊端,使機(jī)構(gòu)誤差分析簡易可靠。
A linear programming method of vector loop used in the analysis of mechanism motion and its error was introduced , the possibility of using the sensitivity of kinematic analysis for error was analyzed , and it was proposed for the error analysis model of the mechanism to make equivalent substitution for the dimensional error with basic kinematic joint element ( kinematic pair ) and as well to implement the linear programming method of vector loop for error analysis within the adams 摘要介紹機(jī)構(gòu)運(yùn)動分析與誤差分析的向量環(huán)路線性規(guī)劃法,分析運(yùn)用運(yùn)動分析靈敏度進(jìn)行誤差分析的可能性,提出在機(jī)構(gòu)誤差分析模型中用基本運(yùn)動連接元素(運(yùn)動副)對尺寸誤差進(jìn)行等價替換,使誤差分析向量環(huán)路線性規(guī)劃法在adams中實(shí)現(xiàn)。
Results the number of myocardial and brain and opioid receptors significantly increased , and they were significantly associated with the decreased hemodynamic parameters such as mean arterial pressure ( map ) , left intraventricular systolic pressure ( lvsp ) , the maximal rate of the change of intraventricular pressure ( dp / dtmax ) and the area of p - dp / dt vector loop ( lo ) 結(jié)果創(chuàng)傷失血性休克后,大鼠心臟和腦和阿片受體數(shù)目明顯升高,親和力無明顯變化,心臟和腦的和阿片受體數(shù)目升高與創(chuàng)傷失血性休克后大鼠血流動力學(xué)指標(biāo)下降呈顯著負(fù)相關(guān)。