Publications de Bhawnath Tiwari

Design and Characterization of an Equibiaxial Multi-Electrode Dielectric Elastomer Actuator

Yves Perriard, Yoan René Cyrille Civet, Stefania Maria Aliki Konstantinidi, Simon Holzer, Bhawnath Tiwari

With the ongoing journey of automation advancements and a trend towards miniaturization, the choice of actuator plays a crucial role. Over recent years, soft actuators have demonstrated their usefulness in various applications, especially where light weigh ...

MDPI AG2025

A Tunable Self-Offloading Module for Plantar Pressure Regulation in Diabetic Patients

Yves Perriard, Yoan René Cyrille Civet, Paolo Germano, Christian Köchli, Sofia Lydia Ntella, Kenny Jeanmonod, Bhawnath Tiwari

Plantar pressure plays a crucial role in the pathogenesis of foot ulcers among patients with diabetes and peripheral polyneuropathy. Pressure relief is a key requirement for both the prevention and treatment of plantar ulcers. Conventional medical practice ...

2024

Valve comprising a body and a mobile piston

Yves Perriard, Yoan René Cyrille Civet, Paolo Germano, Christian Köchli, Sofia Lydia Ntella, Bhawnath Tiwari

The invention concerns a valve comprising a body (11) and a piston (12) movable in the body (11) between two extreme positions. One of the extreme positions is a so-called rest position or closed position and another extreme position is a so-called active ...

2024

Prototyping and Experimental Analysis of Active Offloading Footwear for Patients With Diabetes Using an Array of Magnetorheological Fluid–Based Modules

Yves Perriard, Yoan René Cyrille Civet, Paolo Germano, Christian Köchli, Bhawnath Tiwari

Diabetic foot ulceration is a serious challenge worldwide which imposes an immense risk of lower extremity amputation and in many cases may lead to the death. The presented work focuses on the offloading requirements using an active approach and considers ...

2024

Magnetorheological valve

Yves Perriard, Christian Köchli, Sofia Lydia Ntella, Adrien Jean-Michel Thabuis, Kenny Jeanmonod, Bhawnath Tiwari

The present invention relates to a valve (10) comprising a housing (11) having a peripheral structure (12) made of a magnetic field conductive material and a core (13) disposed in said housing (11) The core (13) and the peripheral structure (12) delimit a ...

2024

A Dielectric Elastomer based Miniaturized Soft Planar Microactuator

Yves Perriard, Yoan René Cyrille Civet, Stefania Maria Aliki Konstantinidi, Simon Holzer, Bhawnath Tiwari

Precise and robust positioning features are vital need in modern-day industries, particularly in the context of industrial automation within the micro/meso domain. In this work, we present a novel miniaturized planar microactuator with a total size of 40 m ...

VDE VERLAG GMBH2024

Intelligent plantar pressure offloading for the prevention of diabetic foot ulcers and amputations

Yves Perriard, Yoan René Cyrille Civet, Christian Köchli, Sofia Lydia Ntella, Kenny Jeanmonod, Bhawnath Tiwari

The high prevalence of lower extremity ulceration and amputation in people with diabetes is strongly linked to difficulties in achieving and maintaining a reduction of high plantar pressures (PPs) which remains an important risk factor. The effectiveness o ...

2023

A Polyester–Nylon Blend Plantar Pressure Sensing Insole for Person With Diabetes

Yves Perriard, Yoan René Cyrille Civet, Paolo Germano, Christian Köchli, Sofia Lydia Ntella, Kenny Jeanmonod, Bhawnath Tiwari

Peripheral sensorimotor neuropathy among people with diabetes is one of the leading causes of foot ulceration. Plantar pressure is a significant parameter to control for the prevention of foot ulceration. A low-cost sensing insole, which can provide a reli ...

2023

Highly Efficient Miniaturized Magnetorheological Valves Using Electropermanent Magnets

Yves Perriard, Christian Köchli, Sofia Lydia Ntella, Adrien Jean-Michel Thabuis, Kenny Jeanmonod, Bhawnath Tiwari

Fluidic systems enable actuation in various applications, such as automotive, medical, and industrial robotics. Miniaturized valves constitute a fundamental controlling element of modern fluidic systems, intriguing the interest of many researchers. This le ...

2023

Towards Development of a Novel Variable Stiffness Instrumented Gripper

Yves Perriard, Marjan Ghorbani, Bhawnath Tiwari, Dan Cisier

The need for the gripper becomes more demanding when it comes to automated manipulation or handling of fragile structures. Depending on the object and the task requirements, a single gripper with a fixed stiffness may not be enough, and a variable mechanis ...

IEEE2023