The potential of the KET "Electro Rheological Fluids" for - - PowerPoint PPT Presentation
The potential of the KET "Electro Rheological Fluids" for Military Applications Eng. Sandro Scattareggia Marchese (PhD) CEO Signo Motus srl 39th CapTech Materials & Structures Meeting EDA, Brussels (BE) 14-15 February
39th CapTech Materials & Structures Meeting – EDA, Brussels (BE) 14-15 February 2018
The potential of the KET "Electro‐Rheological Fluids" for Military Applications
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Presentation Summary
Introduction on KET Electro‐Rheological Fluids Main development and achieved results Key Applications for the Military Sector Roadmap and Conclusions
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Signo Motus: Who we are
Core Business R&D:
Inorganic Core
Organic coating Transmission electron microscopy www.eda.europa.eu
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Introduction on KET Electro‐Rheological Fluids
ElectroRheological Fluids are polar nanoparticles (inorganic or organic) dispersed in a non-conductive fluid (e.g. silicon oil). Such materials drastically change their rheological characteristics at the application of an electric field (few kV/mm) passing from the liquid to a quasi-solid state at a speed of some milliseconds (1 ÷10 ms).
What ERFs are
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Introduction on KET Electro‐Rheological Fluids
Principle of Operation
upper plate lower plate upper plate lower plate upper plate lower plate Semi-active devices
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Introduction on KET Electro‐Rheological Fluids
Competing technologies:
Context information
Keys: response time, controllability, fault management, reliability, costs, weight & size
Worldwide development on ERFs & MRFs:
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Main development and achieved results
Programme: National Military Research Plan (P.N.R.M.) Start/End date: December 2010 / February 2016 Objective: development and validation of a rotational electromechanical device (based on smart materials) for vehicular and / or ballistic applications in the military field
This work has been supported by SEGREDIFESA of the Italian Ministry of Defence under the National Military Research Plan R&T Project “ADHERE”
The Project ADHERE Advanced Development Held by Electro-Rheological Effect
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Main development and achieved results
Theoretical analysis, synthesis and physical-chemical characterization of different ER Fluids (ERFs) Identification of ERFs suitable for the purpose and process
The Project ADHERE – PHASE I
Inorganic Core
Organic coating Transmission electron microscopy
0,000 1,000 2,000 3,000 4,000 5,000 6,000 0,0 1,0 2,0 3,0 4,0 5,0
Yield Stress [kPa] Electric Field [kV/mm]
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Main development and achieved results
Design and manufacturing
ERFs rheometer Validation
ERFs rheometer as measurement system Electromechanical characterization of ERFs Optimization of ERFs on the base of the results obtained Analysis
military applications at the operative centres of the Italian MoD (CEPOLISPE – UTT- NETTUNO)
The Project ADHERE – PHASE II
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Main development and achieved results
Design, manufacturing and validation
shock absorber based on ERFs for vehicular applications
The Project ADHERE – PHASE III
Design, manufacturing and validation
validate rotational and linear ERFs electromechanical devices
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Main development and achieved results
Yield stress (static performances): values up to an order of magnitude higher w.r.t. state of the art Shear stress (dynamic performances): values up to 2 times higher w.r.t. state of the art Current Density (power consumption): values up to 6 times lower w.r.t. state of the art The Project ADHERE – Main Results on ERFs
Maximum Yield Stress [kPa] Maximum Shear Stress [kPa] Maximum Current Density [μA/cm2] ADHERE ERF (low concentration) 0,515 0,415 3,19 ADHERE ERF (medium concentration) 6,125 3,971 8,59 ADHERE ERF (high concentration) 15,076 8,346 10,36 State of the Art 1,610 4,122 58,43
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Main development and achieved results
Mechanical power increase due to ER effect: 500 W (max) Power consumption: 1 W (max) Full correspondence with theoretical models No significant changes due to continuous use of the ERF based device (48 hours - 144.000 cycles) The Project ADHERE – Main Results on ERFs based devices
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Main development and achieved results
Programme: H2020 – SME Instrument (PHASE I) Topic: NMP-25-2015-1 “Accelerating the uptake
nanotechnologies, advanced materials
advanced manufacturing and processing technologies by SMEs” Start/End date: April 2016 / September 2016 Objective: to demonstrate technical/economical feasibility
address the rehabilitation and fitness markets
The Project ERXOS
ElectroRheological fluid based eXOSkeleton devices for physical upper limb rehabilitation
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Main development and achieved results
ERXOS is an exoskeleton device for upper limbs based on Electro- rheological Fluids donned by the user, providing a variable resistance on each single joint in relation to the arm position and the intention of motion.
The Project ERXOS
Main applications in the civil domain: Rehabilitation: treatment of patients (e.g. stroke, MS, post-trauma); Fitness: custom physical training for the arm.
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Key Applications for the Military sector
Semi-active shock absorbers: increase of performances (e.g. adherence, comfort) and safety of vehicles in different
Smart clutches/brakes: increase of performances (e.g. applied torque/force) and device lifetime
Vehicular Domain
M1 M2 zr zt z k2 k1 c1
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Key Applications for the Military sector
Vibration damping systems
Vibration reduction for naval application: increase of performances (e.g. noise reduction, comfort) and safety of structure & hull Ballistic: increase of performances (e.g. shot precision on target)
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Key Applications for the Military sector
Increase of human capabilities and soldier training
Wearable Exoskeletons: Increase of load capabilities Increase of shot precision on target (snipers) Soldiers Personalized Physical training (e.g.
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Roadmap and Conclusions
Domain ERFs Exoskeletons Shock Absorbers Foreseen Actions Production process scale-up and industrial validation Prototyping and validation of physical training/ rehabilitation devices Test and validation in operating environment (2-axis vehicle) Objectives Adequate batch production and reliable process Ready-to-market devices Ready-to-market devices Timing 2020 2020 2019 Estimated investments ≈ 2 M€ ≈ 2 M€ ≈ 0.5 M€
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Roadmap and Conclusions
Strategic investment for the Company Wide military potential applications in different domains Co-funding expected for R&D through: H2020, ESF (Dual Use), FTI, international cooperation Strategic partnership alliances
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Sandro Scattareggia Marchese Signo Motus srl - Managing Director Via Panoramica 340 98168 – Messina (ME) Tel: +39 (0)90 355645 Tel: +39 (0)90 357028 Fax: +39 (0)90 356913 sandroscattareggia@signomotus.it
www.signomotus.it
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