Download Advanced Robotics: 1989: Proceedings of the 4th by M. Kaneko, K. Yokoi, K. Tanie (auth.), Kenneth J. Waldron PDF

By M. Kaneko, K. Yokoi, K. Tanie (auth.), Kenneth J. Waldron (eds.)

The Fourth foreign convention on complex Robotics used to be held in Columbus, Ohio, U. S. A. on June thirteenth to fifteenth, 1989. the 1st meetings during this sequence have been held in Tokyo. The 3rd used to be held in Versailles, France in October 1987. The overseas convention on complicated Robotics is affiliated with the foreign Federation of Robotics. This convention used to be backed by way of The Ohio country college. the yankee Society of Mechanical Engineers used to be a cooperating co-sponsor. the target of the overseas convention on complex Robotics is to supply a global alternate of knowledge regarding complicated robotics. This was once followed as one of many topics for foreign examine cooperation at a gathering of representatives of 7 industrialized international locations held in Williamsburg, U. S. A. in might 1983. the current convention is actually foreign in personality with contributions from authors of twelve international locations. (Bulgaria, Canada, France, nice Britain, India, Italy, Japan, Peoples Republic of China, Poland, Republic of China, Spain, usa of America.) the subject material of the papers is both varied, protecting such a lot technical parts of robotics. The authors are distinct. they're leaders within the box of their respective international locations. The foreign convention on complex Robotics has continually really inspired papers orientated to the layout of robot platforms, or to analyze directed at complicated purposes in provider robotics, building, nuclear strength, agriculture, mining, underwater platforms, and house systems.

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Extra resources for Advanced Robotics: 1989: Proceedings of the 4th International Conference on Advanced Robotics Columbus, Ohio, June 13–15, 1989

Sample text

Seven solvable pattern have been found and categorized. Each has its own special kinematic characteristics. Type 1: PC6i + QS6i =R (20) where R, Q, R are constants, If R=O, we may obtain two solutions: 6i = TAN-l(-P/Q) = ATAN2(-P, Q) (21) or (22) If R*O, then (23) where 0'= ±l, Hence, there exists two set of solutions. Type 2: di=R (24) where R is a constant, di is the variable of a prismatic joint. Type 3: S6i = Rl C6i = R2 (25) (26) 43 Rl and R2 are constants. Then the solution is uniquely obtained as (27) Type 4: Xj S6i Xj C6i = Rl = R2 (28) (29) Where Xj is also a variable, Rl and R2 are constants, dividing both equations, we have two solutions: (30) or (31) Type 5: PC6ij + QC6i = Rl PS6ij + QS6i = R2 (32) (33) Where P, Q, Rl and R2 are constants, 6ij means 6i + 6j, squaring both terms and add, we obtain (34) We get two solutions for 6j(33), we have Then solve for 6i from equations (32) and (35) Where Kl =R2(PC6j + Q) - Rl(PS6j) K2 = Rl(PC6j + Q) - R2(PS6j) TYPE 6: PS6ij + QC6ij + RC6i =fl -PC6ij + QS6ij + RS6i = 6 (36) (37) 44 Where P, Q, R, fl and f2 are all constants.

D ijj is the centrifugal force of joint i caused by the velocity of joint j, and D ijk is the Coriolis force of joint i caused by velocities in joint j and k. Using the Christoffel symbol ~ijk [28], Dijj = ~ijj (60) and Dijk = 2~ijk (61) (62) Since dij in Equation (58) is a function of qs, qs+ 1, ... , qn. Therefore, S = min(i,j). 50 k = min(i, j) (63) Equations (60) and (61) can be simplified as -1 ad" -L!. 2 aqi 0 adij aqj Dijj = and if i > j if i = j if i < j 1.. adij adjk 2 ( aqk - aqi) Dijk 1 = (64) adik '2 ( aqj ad j k - aqi) 1 adij adik '2 (aqk + aqj) if j < k, i if k < j.

The completed SEGM can be used for deriving the kinematic as well as dynamic model of industrial robots. After input the joint parameters of a manipulator, SEGM can symbolically generate FORTRAN code for closed form direct/reverse kinematics, the Jacobian/reverse Jacobian, as well as the dynamic equations of the manipulator. SEGM is not only an accurate and dependable equation generator, but also is an efficient tool to study the behavior of various robot models. COORDINATION AND TRANSFORMATION Figure 1 shows a 6-R manipulator.

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