scholarly journals Spider Origami: Folding Principle of Jumping Spider Leg Joints for Bioinspired Fluidic Actuators

2021 ◽  
pp. 2003890
Author(s):  
Chantal Göttler ◽  
Karin Elflein ◽  
Roland Siegwart ◽  
Metin Sitti
2020 ◽  
Vol 528 (11) ◽  
pp. 1883-1902
Author(s):  
Philip O. M. Steinhoff ◽  
Gabriele Uhl ◽  
Steffen Harzsch ◽  
Andy Sombke

2013 ◽  
Vol 61 (10) ◽  
pp. 5287-5290 ◽  
Author(s):  
Shahrzad Jalali Mazlouman ◽  
Benjamin Che-Ming Chang ◽  
Alireza Mahanfar ◽  
Rodney G. Vaughan ◽  
Carlo Menon

2022 ◽  
pp. 107754632110514
Author(s):  
Sivakumar Solaiachari ◽  
Jayakumar Lakshmipathy

In this study, a new type of vibration isolator based on fluidic actuators and a composite slab was tested experimentally with an unbalanced disturbance. Quasi-zero stiffness vibration isolation techniques are advanced and provide effective isolation performance for non-nominal loads. The isolation performance of the proposed isolator was compared to that of a nonlinear vibration isolator equipped with fluidic actuators and a mechanical coil spring (NLVIFA). The NLVIFA system is better suited to non-nominal loads; however, the mechanical spring axial deflection leads to limited amplitude reduction in the system. To address this issue, a cross buckled slab was developed to replace a mechanical coil spring for absorbing vertical deflection by transverse bending, which is made of a specially developed composite material of Basalt fiber reinforced with epoxy resin and enhanced with graphene nano pellets. This current study was concerned with the theoretical analysis and experimental investigations of the proposed nonlinear vibration isolator with fluidic actuators and composite material (NLVIFA-CM), which performs under quasi-zero stiffness characteristics. Because of its reduced axial deflection, the theoretical and experimental results show that the NLVIFA-CM system outperforms the NLVIFA system and other linear type vibration isolators in terms of isolation performance. Furthermore, the proposed vibration isolator makes a significant contribution to low-frequency vibration.


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