ERROR AND OPTIMIZATION STUDY OF THE INSTANTANEOUS CENTER AND ANGLE OF ROTATION OF A BODY JOINT

1979 ◽  
pp. 499-502
Author(s):  
Manohar Panjabi
Keyword(s):  
Optimization Study ◽  
Instantaneous Center ◽  
Body Joint ◽  
Angle Of Rotation

Errors in the Center and Angle of Rotation of a Joint: An Experimental Study

1982 ◽  
Vol 104 (3) ◽  
pp. 232-237 ◽  
Author(s):  
M. M. Panjabi ◽  
V. K. Goel ◽  
S. D. Walter ◽  
S. Schick
Keyword(s):  
Experimental Study ◽  
Planar Motion ◽  
Kinematic Parameters ◽  
Simple Experiment ◽  
Step Size ◽  
Center Of Rotation ◽  
Error Sensitivity ◽  
Body Joint ◽  
Angle Of Rotation

The error sensitivity in the determination of center and angle of rotations of a body joint performing planar motion is studied. A simple experiment is described to measure the errors in these two kinematic parameters as functions of errors in the input coordinates of markers. The effect of varying the marker locations and the size of motion-step is also studied. The errors in the center of rotation are found to increase dramatically when the two markers subtend angles of about 0 deg or 180 deg and when the motion step size decreases to 1 deg or less. Similar results are found for errors in the angle of rotation which, in addition, increase with decrease in the radius of the markers.

Development of a flexible design optimization study tool

1998 ◽  
Author(s):  
Dipankar Ghosh ◽  
John Garcelon ◽  
Vladimir Balabanov ◽  
Garret Vanderplaats
Keyword(s):  
Design Optimization ◽  
Flexible Design ◽  
Optimization Study

scholarly journals Hybrid Seven-bar Press Mechanism

2018 ◽  
Vol 12 (3) ◽  
pp. 181-187
Author(s):  
M. Erkan Kütük ◽  
L. Canan Dülger
Keyword(s):  
Genetic Algorithm ◽  
Objective Function ◽  
Design Optimization ◽  
Hybrid System ◽  
Degrees Of Freedom ◽  
Dimensional Synthesis ◽  
Design Variables ◽  
Optimization Study ◽  
Metal Stamping

An optimization study with kinetostatic analysis is performed on hybrid seven-bar press mechanism. This study is based on previous studies performed on planar hybrid seven-bar linkage. Dimensional synthesis is performed, and optimum link lengths for the mechanism are found. Optimization study is performed by using genetic algorithm (GA). Genetic Algorithm Toolbox is used with Optimization Toolbox in MATLAB®. The design variables and the constraints are used during design optimization. The objective function is determined and eight precision points are used. A seven-bar linkage system with two degrees of freedom is chosen as an example. Metal stamping operation with a dwell is taken as the case study. Having completed optimization, the kinetostatic analysis is performed. All forces on the links and the crank torques are calculated on the hybrid system with the optimized link lengths

scholarly journals Optimization study of pasta extruded with quinoa flour (Chenopodium quinoa willd)

2021 ◽  
Vol 19 (1) ◽  
pp. 220-227
Author(s):  
Olga Lucía Torres Vargas ◽  
Mariana Lema González ◽  
Yessica Viviana Galeano Loaiza
Keyword(s):  
Chenopodium Quinoa ◽  
Optimization Study ◽  
Quinoa Flour
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