Kinematical simulation methods for Stewart Platform in medical equipments

The efficiency and accuracy of the modern positioning systems are crucial points in their design. The designers and engineers are highly motivated to find new methods and solutions to the accuracy problem with the biggest mobility and safety. Considerable numbers of solutions are on the market but only some of them can be used in medical industry. The authors will propose some kinematical simulation methods using MATLAB® software. The purpose of these methods is to use Stewart Platform with a better accuracy. The results show that it is possible to simulate Stewart Platform in MATLAB® and it can be used in medical industry.

Kinematical Simulation of 3-DOF Parallel Mechanism Based on ADAMS

Kinematics analysis of mechanism refers to analysis for pose、speed and acceleration of mobile platform of spatial 3-RPS parallel mechanism. In this paper, mathematical model of spatial 3-RPS parallel mechanism is primarily built, and the close loop equation is adopted for the positional posture analysis of the mobile platform, then the positional posture of mobile paltform is acquired. Finally, kinematical simulation will be acquired by software Adams, which makes sense in kinematical performance of spatial 3-RPS parallel mechanism.

Portable Fire Water Branch Stents Structure Design and Kinematical Simulation

Contrapose the disadvantages of the traditional fire water branch stents, the paper developed a simple structure, safe and reliable, low labor intensity, and can adapt to the complex fire environment of portable fire water branch stents.This paper introduces the structure and working principle of fire water branch stents, and simulates analysis of the motion trajectory of fire water branch through the Pro/E and ADAMS.The results show that the portable fire water branch stents safe and reliable, can meet the demand of fire control.

One New Kind of Worming Pipe Robot

Aim at special requirements and limitations of new type carrying technique for special technology well logging, one new type worming pipe robot was put forward based on combination mechanism, it can be used in the new type carrying technique. The walking principle of the robot was given and walking kinematical model and driving torque model were set up in this paper. Further more the virtual prototype was made and kinematical simulation analysis had been accomplished. The numerical results validated the design theory and analysis conclusions of the robot were correct. The robot can have bigger tensile draw.

Research on Walking Principle of a Worm Pipe Robot

The new type worm pipe robot was put forward based on Stewart parallel mechanism by the method which move or rest platform is alternated. The kinematical model was set up by the method of coordinate transform for the robot in this paper, and the walking principle was analyzed when the robot moved in straight pipe and elbow. Further more the virtual prototype was made and kinematical simulation analysis had been accomplished. By the walking simulation when the robot moved in straight pipe and elbow it is validated that the walking principle established for the robot is correct. The robot can has bigger tensile draw.

Study on Optimal Design of Case Ejector Mechanism of Tank Autoloader Based on Kinematical Simulation

To make optimal design of case ejector mechanism easier and more efficiency, a novel method based on kinematical simulation and combining modern computer technology with the features of traditional linkage design is presented. By analyzing transmission state of double-rocker mechanism of ejector, establishing a kinematical simulation model and determining the appropriate data of the mechanism, a designer could easily design a case ejector satisfying all the requirements on movement or trajectory in the given conditions. Meanwhile, the transmission factor of the mechanism is highly increased. The results from optimal design of the case ejector of certain type of tank show that the transmission factor of the mechanism is increased by 58.4%.