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Przegląd narzędzi stosowanych w pomiarach siłowników miękkich

Koter Katarzyna, Dominik Ilona, Zubrzycki Igor

Prace Naukowe Politechniki Warszawskiej. Elektronika

2022

z. 197, t. 2

123-134

Praca przedstawia przegląd literatury dotyczącej stanowisk pomiarowych siłowników robotów miękkich, w celu określenia jakie parametry oraz metody pomiarowe pozwolą na odpowiednie zweryfikowanie ich cech. W przeglądzie skupiliśmy się głownie na siłownikach napędzanych pneumatycznie. W pracy przedstawiono stosowane najczęściej układy zasilania oraz elementy funkcjonalne stanowisk służące do pomiaru ciśnienia, siły, kąta i przemieszczenia. Opisano także programy i systemy sterowania wykorzystywane w stanowiskach pomiarowych. Na podstawie wykonanego przeglądu określiliśmy jakie elementy pneumatycznych stanowisk pomiarowych najczęściej występują w literaturze oraz jakie elementy składowe są niezbędne do zebrania danych potrzebnych do określenia charakterystyki badanych siłowników.

The paper presents a literature review of the soft pneumatic robot actuators measurement stations. The paper presents the most frequently used power supply systems and functional elements of the stands for measuring pressure, force, angle and displacement, the programs and control systems used in measuring stations are also described. On the basis of the performed review, we determined which components are necessary to collect the data needed to determine the characteristics of the tested actuators.

Bio inspired salamander robot with Pneu-Net Soft actuators – design and walking gait analysis

Natarajan Elango, Chia Kwang Y., Faudzi Ahmad Athif Mohd, Lim Wei Hong, Ang Chun Kit, Jafaari Ali

Bulletin of the Polish Academy of Sciences. Technical Sciences

2021

Vol. 69, nr 3

art. no. e137055

The research was attempted to mimic the locomotion of the salamander, which is found to be one of the main animals from an evolutionary point of view. The design of the limb and body was started with the parametric studies of pneumatic network (Pneu-Net). Pneu-Net is a pneumatically operated soft actuator that bends when compressed fluid is passed inside the chamber. Finite Element Analysis software, ANSYS, was used to evaluate the height of the chamber, number of chambers and the gap between chambers for both limb and body of the soft mechanism. The parameters were decided based on the force generated by the soft actuators. The assembly of the salamander robot was then exported to MATLAB for simulating the locomotion of the robot in a physical environment. Sine-based controller was used to simulate the robot model and the fastest locomotion of the salamander robot was identified at 1 Hz frequency, 0.3 second of signal delay for limb actuator and negative π phase difference for every contralateral side of the limbs. Shin-Etsu KE-1603, a hyper elastic material, was used to build the salamander robot and a series of experiments were conducted to record the bending angle, the respective generated force in soft actuators and the gait speed of the robot. The developed salamander robot was able to walk at 0.06774 m/s, following an almost identical pattern to the simulation.

Design and analysis of a soft pneumatic actuator to develop modular soft robotic systems

Tahir Ahmad Mahmood, Zoppi Matteo

Journal of Automation Mobile Robotics and Intelligent Systems

2019

Vol. 13, No. 1

30--36

In this paper, we describe the design and analysis of a Soft Cubic Module (SCM) with a single internal pneumatically actuated chamber. The actuation chamber’s shape, size and, orientation have been evaluated to realize a soft robotic actuator which can be further employed for the development of modular soft robotic systems. SCM can be easily manufactured through the molding process and it is composed of single soft material, the silicone polymer. Its external shape allows utilization of this module as a single block actuator as well as makes it easy to combine multiple SCM modules to build multiunit soft robotic systems. We consider it as our first tool to investigate whether the SCM scheme is sufficient to build soft robots which would be able to perform certain given tasks in various configurations like a soft gripper, bio-mimetic crawling mechanism or multi-axis manipulator. So far, the results obtained are encouraging in order to further develop and employ the SCM design scheme, focusing on its further geometrical optimization for both standalone configuration and assembly of multiple modules to realize novel, economic and easy to fabricate soft robotic systems.