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·194· 北京科技大学学。报 1999年第2期 Straght-line Outputs 参考文献 PartⅢ:the Ball-.Double Burmester Point Linkage.Joural of Mechanisms, 1 Vidosic J P,Tesar D.Selections of Four-bar Mech- 1967(2):61 nisms Having Required Approximate Straightline 4 Han J Y.Ein Beitrag zur Rechnerunterstuetzten Outputs,part I.the General Case of the Masssynthese Ebener Gelenkgetriebe Fuer Angeaeherte Ball-Burmester Point.Journal of Mechanisms,1967 Geradfuehrungen Durch Vier Bzw.Fuenf Unendlich (2):23 Benachbarte Punkte.Hamburg:Dissertation Universitaet 2 Tesar D,Vidosic J P,Wolford J C.Selections of der Bundeswehr,1993 Four-bar Mechanisms Having Required Aproximate 5韩建友.铰链四杆直线机构综合的新方法.机械工程学 Straght-line Outputs,Part II.the Ball-Burmester Point 报,1996,32:19 at Inflection Pole.Jounal of Mechanisms,1967(2):45 6彭伟斌.铰链四杆直线机构综合及软件的研究:[学位论 3 Tesar D.Vidosic J P,Wolford J C.Selections of 文].北京:北京科技大学.1998 four-bar Mechanisms Having Required Aproximate Analytical Synthesis of Four-bar Linkage in the Special Configuration with Coupler Curve Having a 4-Point Contact with Its Tangent Han Jianyou,Peng Weibin Mechanical Engineering School.UST Bejing.Bejing 100083,China ABSTRACT A analytical synthesis method of four-bar linkage in the special configuration,in which the coupler curve has a four-point contact with its tangent (Ball's point),is presented.With this method,the point which is on the expecting straight-line,the direction and two frame points, can be given beforehand.And some synthesizing formulae are derived and some synthesizing exam- ples are given.The results have proved that the formulae are correct. KEY WORDS four-bar linkage;coupler curve;straight line;synthesis 喝喝坚喝喝峰坚学坚学坚 (上接第190页) Roll Wear Pattern and Appraisal of Roll Contour in Hot Wide Strip Mill Cao Jianguo,Chen Xianlin,Xhang Qingdong,He Anrui Mechanical Engineering School.UST Beijing,Beijing 100083,China ABSTRACT On the basis of large amount of measured rolls contour,the roll wear pattern of every stand is obtained in hot wide strip mill.A new reasonable appraisal of the conventional rolls and improved rolls contour is introduced by roll feature method. KEY WORDS wide strip;roll;wear;roll contour北 京 科 技 大 学 学 报 ,,年 第 期 参 考 文 献 , 一 ’ , 一 , 肛 , , 一 , 一 】 , , , 一 一 一 , ’ 七吐即 邓 , 韩建友 铰链 四 杆直线机构综合的新方法 机械工程学 报 , , 彭伟斌 铰链 四 杆直线机构综合及软件的研究 学位论 文 北京 北京科技大学 一 一 万 稗 “ , , ,脸 , 一 , 一 , , , 一 , 别叮 , 让 一 小 小 争 备 备 参 参 争 争 争 参 争 参 小 争 争 争 小 小 小 小 小 小 小 参 小 小 备 备 条备 备备备备备备备备备备备 上接第 页 , , 乃 , 耐 , ,
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