Design of a 4-DOF Robot Manipulator with Optimized Algorithm for Inverse Kinematics

Year: 2015 Volume: 9 Issue: 6 929 - 934 Pages

• Authors:
• S. Gómez
• G. Sánchez
• J. Zarama
• M. Castañeda Ramos
• J. Escoto Alcántar
• J. Torres
• A. Núñez
• S. Santana
• F. Nájera
• J. A. Lopez

Abstract: This paper shows in detail the mathematical model of direct and inverse kinematics for a robot manipulator (welding type) with four degrees of freedom. Using the D-H parameters, screw theory, numerical, geometric and interpolation methods, the theoretical and practical values of the position of robot were determined using an optimized algorithm for inverse kinematics obtaining the values of the particular joints in order to determine the virtual paths in a relatively short time.

• Keywords:
• Kinematics
• degree of freedom
• optimization
• robot manipulator.

Anthropometric Profile and Its Influence on the Vital Signs of Baja California College Students

Year: 2014 Volume: 8 Issue: 9 652 - 660 Pages

• Authors:
• J. A. Lopez
• J. E. Olguín
• C. Camargo
• G. A. Quijano
• R. Martínez

Abstract: An anthropometric study applied to 1,115 students of the Faculty of Chemical Sciences and Engineering of the Autonomous University of California. Thirteen individual measurements were taken in a sitting position. The results obtained allow forming a reliable anthropometric database for statistical studies and analysis and inferences of specific distributions, so the opinion of experts in occupational medicine recommendations may emit to reduce risks resulting in an alteration of the vital signs during the execution of their school activities. Another use of these analyses is to use them as a reliable reference for future deeper research, to the design of spaces, tools, utensils, workstations, with anthropometric dimensions and ergonomic characteristics suitable to use.

• Keywords:
• Anthropometry
• vital signs
• students.

Anthropometric Profile as a Factor of Impact on Employee Productivity in Manufacturing Industry of Tijuana, Mexico

Year: 2014 Volume: 8 Issue: 9 642 - 651 Pages

• Authors:
• J. A. López
• J. E. Olguín
• C. W. Camargo
• G. A. Quijano
• R. Martínez

Abstract: This paper presents an anthropometric study conducted to 300 employees in a maquiladora industry that belongs to the cluster of medical products as part of a research project to pretend simulate workplace conditions under which operators conduct their activities. This project is relevant because traditionally performed a study to design ergonomic workspaces according to anthropometric profile of users, however, this paper demonstrates the importance of making decisions when the infrastructure cannot be adapted for economic whichever put emphasis on user activity.

• Keywords:
• Anthropometry
• Biomechanics
• Design
• Ergonomics
• Productivity.

Surgery Scheduling Using Simulation with Arena

Year: 2013 Volume: 7 Issue: 7 366 - 371 Pages

• Authors:
• J. A. López
• C.I. López
• J.E. Olguín
• C. Camargo
• J. M. López

Abstract: The institutions seek to improve their performance and quality of service, so that their patients are satisfied. This research project aims, conduct a time study program in the area of gynecological surgery, to determine the current level of capacity and optimize the programming time in order to adequately respond to demand. The system is analyzed by waiting lines and uses the simulation using ARENA to evaluate proposals for improvement and optimization programming time each of the surgeries.

• Keywords:
• Time study
• waiting lines
• reducing time
• simulation.