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Adolfo Senatore 

DIIn - Department of Industrial Engineering, University of Salerno, I-84084 Fisciano (SA), Italy
a.senatore@unisa.it
Adolfo Senatore, Ph.D.

Assistant professor of Mechanics for Machine Systems
Department of Industrial Engineering
University of Salerno
via Ponte don Melillo, 1
I 84084 Fisciano - Salerno - Italy
a.senatore@unisa.it
ph: +39.089.964339 - skype: sntdlf
fax: +39.089.964037

Ph.D. in Tribology, University of Pisa (I), March 2002.
Graduated (M.Sc.) in Mechanical Engineering cum laude, University of Salerno (I), March 1998.

Since 2002, he has been serving as teacher of Mechanical Measurements, Mechatronics (since 2004) and Industrial Measurements (2008).
Member of Nano_Mates, Research Centre for Nanomaterials and nanotechnology at University of Salerno:
http://www.nanomates.unisa.it/en/cdn.html

Member of the Management Board of the AIT - Italian Tribology Association
http://www.aitrib.it/index.php?lang=en

Regional Editor and member of the Editorial Board of Recent Patents on Mechanical Engineering - ISSN: 1874-477X - Publisher Bentham Ltd.

Member of the Editorial Board of Journal of Mechanical Engineering and Automation -
ISSN: 2163-2405 - Scientific & Academic Publishing Co.

Member of the Editorial Board of Mechanical Testing and Diagnosis -
ISSN: 2247-9635 - Publishing House of "Dunarea de Jos" University of Galati.

Reviewer for Industrial Lubrication and Tribology, Emerald Group Publishing Limited
Reviewer for Measurement, Elsevier
Reviewer for Journal of Tribology, Transactions of the ASME
Reviewer for Tribology Letters, Springer
Reviewer for Mechatronics, Elsevier

He has been also reviewer for 2009 IEEE Multi-conference on Systems and Control and ECC 2009 European Control Conference, ACC American Control Conference 2008

Adolfo Senatore has been member of the Scientific Committees (International Conferences): Dipre '07, Dipre '09, RaDMI '03-'09, ICEGD '05.

Research fields: hydrodynamic and mixed lubrication for piston rings, piston lateral dynamics, models for friction power loss assessment. Effects of nanoparticles as friction and wear reducer additives. Automotive mechatronics: frictional torque transmission in automated clutches in AMT/DCT systems, motion control of devices in hybrid vehicles. Rotordynamics: hydrodynamic lubrication in journal bearings, couple stress fluids effects, porous bearings, rotor stability. Vibration measurement methods: effects of rotation on disk and beam vibrations; critical speeds.
He has been author and co-author of more than 100 scientific papers.

Contact person in the framework of Socrates/Erasmus projects with the following institutions:
- Escuela Universitaria di Ingeneria Tecnica Industriàl (EUITI) - Universidad Politécnica de Madrid (E);
- Escuela Politecnica Superior (EPS) - Universidad de Cordoba (E);
- Centre for Tribology and Technical Diagnostics (CTD) - Univerza v Ljubljani, Ljubljana (SLO);
- Universitatea Politehnica din Bucuresti - PUB Bucharest (RO);
- University of Applied Sciences and Arts of Southern Switzerland (SUPSI) – Lugano (CH).
- Technical University of Ostrava (VŠB) - Ostrava (CZ).

Journal articles

2011
 
DOI 
F Vasca, L Iannelli, A Senatore, G Reale (2011)  Torque Transmissibility Assessment for Automotive Dry-Clutch Engagement   IEEE/ASME TRANSACTIONS ON MECHATRONICS 16: 3. 564-573  
Abstract: Dry clutches are widely used in conventional and innovative automotive drivelines and represent a key element for automated manual transmissions (AMTs). In practical applications, it is fundamental to model the clutch behavior through its torque transmissibility characteristic, i.e., the relationship between the throwout bearing position (or the pressure applied by the clutch actuator) and the torque transmitted through the clutch during the engagement phase. In this paper, a new model for the torque transmissibility of dry clutches is proposed. It is analyzed how the transmissibility characteristic depends on: friction pads geometry, cushion spring compression, cushion spring load, and slip-speed-dependent friction. Corresponding functions are suitably composed determining the torque transmissibility expression. An experimental procedure for tuning the characteristic parameters is presented. The clutch-torque transmissibility model is tested on a detailed cosimulation model with a typical AMT controller.
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G Cuccurullo, V D’Agostino, R Di Giuda, A Senatore (2011)  An analytical solution and an experimental procedure for thermal field at the interface of dry sliding surfaces   Meccanica 46: 3. 589-595  
Abstract: A two-dimensional analytical solution for the temperature rise in a sliding contact is proposed. The model is based on a moving slab subjected to a surface frictional heat source featured, in principle, by any suitable intensity distribution. The slab is cooled on both surfaces by different radiative-convective heat transfer to an ambient at uniform temperature. Thermal boundary conditions are for wall heat flux linearly depending on the wall temperature and allow to recover both the Dirichlet and Neumann boundary conditions as special cases. The dimensionless temperature field in the slab has been solved analytically in closed form by the method variation of parameters in terms of infinite series. The effects of the slab finite thickness and of different thermal boundary conditions are in particular examined and presented for different values of the dimensionless key parameters involved in the problem description. The analytical solution is compared to a preliminary experimental testing carried on a system featured by a moving lamp acting as heat source to simulate sliding contact. The resulting thermal field is detected through infrared-thermography which easily allows a suitable data reduction in order to compare the experimental data with the corresponding analytical predictions. The proposed technique seems to be promising wishing to enhance the control of overheating in sliding contacts.
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DOI 
A Senatore, V D’Agostino, R Di Giuda, V Petrone (2011)  EXPERIMENTAL INVESTIGATION AND NEURAL NETWORK PREDICTION OF BRAKES AND CLUTCH MATERIAL FRICTIONAL BEHAVIOUR CONSIDERING THE SLIDING ACCELERATION INFLUENCE   Tribology International  
Abstract: The developers of innovative automotive active systems have recently stimulated new interest toward the analysis of the frictional behaviour of brake and clutch facings. This paper presents the experimental results acquired with a laboratory setup on brake and clutch facing samples in sliding motion for different operating conditions. An artificial neural network has been used to obtain a comprehensive view of the influence of the main sliding parameters. The study has also taken into account the not weak influence of the sliding acceleration to improve the friction coefficient prediction during transient operations of these dry friction based devices.
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Book chapters

2010
A Senatore, V D'Agostino (2010)  FUNDAMENTALS OF LUBRICATION AND FRICTION OF PISTON RING CONTACT   In: Tribology and dynamics of engine and powertrain Edited by:Prof. Homer Rahnejat. 1056 Loughborough University Woodhead Publishing Limited isbn:9781845693619  
Abstract: The piston ring-pack exhibits a complex dynamic behaviour, which includes gas and oil flows, twisting motion of each ring and its influence on ring-liner and ring-groove lubrication and contact, as well as unsteady oil supply. In modern automotive engines, the dynamics result in a significant share of the total friction power loss and plays a crucial role in the piston assembly response in terms of blowby, wear and oil consumption. This chapter illustrates the physics of piston ring lubrication and friction, the main mathematical and computer models and the fundamentals of the ring-pack role. The chapter is completed by future trends and opportunities of research into piston ring modelling and improvements to the frictional behaviour.
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Conference papers

2011
A Senatore, A Ruggiero (2011)  EXPERIMENTS ON SPINNING THIN DISK FOR DESIGN AND STABILITY CONTROL PURPOSES   In: Proceedings of the 3rd International Conference on Recent Achievements in Mechatronics, Automation, Computer Science and Robotics Edited by:MACRo 2011.  
Abstract: The require of growing performance in high speed mechatronic devices involves incessant analyses of the limits due to the dynamic behaviour of the rotating elements. In fact, the constant increase of rotation speeds produces harmful effects which were negligible in the past. When a thin disk is rotating, the mode splitting phenomenon occurs and in the ground-based frame two different natural frequencies of the single mode are observable; stationary transverse forces excite resonance and disk buckling instability. This paper describes the results of an experimental research focusing on: vibrations of spinning disk, stiffness increase due to the centrifugal force, search of buckling instability due to resonant vibrational modes, flutter instability.
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C Altavilla, P Ciambelli, M Sarno, M R Nobile, C Gnerre, E Somma, V D’Agostino, A Senatore, V Petrone (2011)  TRIBOLOGICAL AND RHEOLOGICAL BEHAVIOUR OF LUBRICATING GREASES WITH NANOSIZED INORGANIC BASED ADDITIVES   In: 3rd European Conference on Tribology ECOTRIB 2011-VIENNANO 2001 Edited by:F Franek, WJ Bartz, A Pauschitz, J Vizintin, E Ciulli, R Crockett. 903-908 OETG Vienna  
Abstract: Lubricating greases are widely used in several heavily loaded tribopairs such as rolling element bearings, gears, chains, etc. Each application represents its own unique load/speed/temperature operating condition that the grease needs to be designed to. Since the non-conforming surfaces are elastically deformed and the pressure involved sufficiently high to give significant effects on viscosity the prevailing lubrication mechanism in grease lubricated pairs is elastohydrodynamic (EHL). However, under more severe loading case and low speeds in transient operation a boundary lubrication component may appear, i.e. when metal surfaces actually come into direct contact with no fluid layer between. The additive formulations of greases integrate a substantial degree of components that reduce wear in boundary conditions. Different types and combinations of thickeners and base oils, along with supplemental structure modifiers and performance additives, combine to give the end user product its special lubricating properties [1, 2]. In this paper the performances of nano-formulated grease through inorganic based additives were tested. In particular, one-pot syntheses was used to obtain free-floating nanosheets of tungsten and/or molybdenum disulphide functionalized by long chain amines in the form of fluid suspension or solid paste. The nanosheets obtained are constituted by one or few layers of crystalline metal chalcogenides completely covered by an organic coating. With respect to similar inorganic materials, the presence of coating stabilizes the suspension, avoids aggregation and oxidation phenomena [3]. The nano-materials, successfully tested in base lubricating oils [4], were dispersed in the lubricating greases and compared by rheological and tribological tests to the conventional lubricating greases.
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R Klučka, M Sivera, A Senatore (2011)  MODAL ANALYSIS OF CENTRIFUGALLY TENSIONED AIRSCREW: NUMERICAL SOLUTION AND TEST DESIGN   In: Proceedings of the 11th International Conference “Research and Development in Mechanical Industry" Edited by:Predrag Dasic. 11-20 Satcip  
Abstract: Several theoretical studies have been addressed to the evaluation of natural frequencies of rotating structural elements as space frames, windmill rotors, aircraft propeller, etc. This paper presents the results of the natural frequencies calculation for an airscrew through finite element method. The same numerical method has been used to simulate a laboratory test for inducing the stiffening effect by means of tensile loads. The advantages and the accuracy of such a test are also reported.
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2010
G Coraggio, C Pisanti, G Rizzo, A Senatore (2010)  MODEL BASED CONTROL OF A MOVING SOLAR ROOF FOR A SOLAR VEHICLE   In: Proceedings of the 10th International Symposium on Advanced Vehicle Control, August 22-26, 2010, Loughborough (UK) Edited by:AVEC 2010.  
Abstract: A study on the benefits and the control of a moving solar roof for parking phases in a solar assisted vehicle is presented. A small scale real prototype of this mobile roof has been realized as a parallel robot with three degrees of freedom, connected with three step motors, and experimental data have been made to validate the calculated results. The effects of roof design variables are analyzed, and the benefits in terms of net available energy assessed by simulation over hourly solar data at various months and latitudes. The structure of a control system for the solar roof is also presented. In order to maximise the solar contribution and to avoid unnecessary movements of the roof, the system is controlled by a combined use of measured solar power, image processing form a digital camera and data provided by a GPS module.
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G Coraggio, C Pisanti, G Rizzo, A Senatore (2010)  A MOVING SOLAR ROOF FOR A HYBRID SOLAR VEHICLE   In: IFAC AAC 2010 - Proceedings of the 6th IFAC Symposium Advances in Automotive Control - July 12-14, 2010, Munich (D) Edited by:IFAC.  
Abstract: A study on the benefits of a moving solar roof for parking phases in a Hybrid Solar Vehicle is presented. A kinematic model of a parallel robot with three degrees of freedom has been developed and validated over the experimental data obtained by a small scale real prototype. The effects of roof design variables are analyzed, and the benefits in terms of net available energy assessed by simulation over hourly solar data at various months and latitudes. The structure of a model based control to achieve the optimal orientation of the solar roof is also presented.
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V D'Agostino, R Di Giuda, V Petrone, A Senatore (2010)  TESTING DRY SLIDING CONTACTS FOR BRAKES AND CLUTCH APPLICATIONS   In: Proceedings of Proceedings of ECT 2010, the Seventh International Conference on Engineering Computational Technology - Valencia (E) Sept. 2010 Edited by:B.H.V. Topping, J.M. Adam, F.J. Pallarés, R. Bru and M.L. Romero, (Editors), Civil-Comp Press, Stirlingshire, Scotland.  
Abstract: The increasing interest toward the research in the field of the frictional behaviour of automotive brake and clutch materials has been stimulated by developers of automotive innovative active systems as brake-by-wire technology, hybridised frictional brake devices, novel automatic transmissions. This paper presents the experimental results carried out through a tribometer setup using pin-on-disk sliding contact along a series of experiments for simulating different operating conditions of brake and clutch facings. Moreover, in this research artificial neural network has been involved to overcome some test rig limits. The experimental and numerical analyses show the influence of sliding speed, sliding acceleration and contact pressure on facing material behaviour during transients.
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N Cappetti, M Pisaturo, A Senatore (2010)  LOAD-DEFLECTION CURVE SENSITIVITY TO MAIN SHAPE PARAMETERS IN A DRY CLUTCH CUSHION SPRING   In: Proceedings of ECT 2010, the Seventh International Conference on Engineering Computational Technology, Valencia (E), September 14-17, 2010 Edited by:B.H.V. Topping, J.M. Adam, F.J. Pallarés, R. Bru and M.L. Romero, (Editors), Civil-Comp Press, Stirlingshire, Scotland.  
Abstract: The cushion spring is an important component of an automotive dry clutch system. In fact, it influences strongly the clutch torque transmission from engine to driveline. Therefore a study on the cushion spring compression behaviour is crucial to improve the gearshift performance in automated manual transmission. In this paper a sensitivity analysis on the load-deflection curve of a typical passenger car cushion spring is proposed. Four geometrical parameters of the main shape of the cushion spring have been analyzed and for each one the influence on the static characteristic has been shown.
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G Cuccurullo, V D’Agostino, R Di Giuda, A Senatore, V Spingi (2010)  AN ANALITYCAL SOLUTION FOR TEMPERATURE RISE AT THE INTERFACE OF DRY SLIDING SURFACES FOR UNEVEN FRICTION   In: UIT 2010 - Proceedings of the 28th UIT Heat Transfer Congress, Brescia (I) June 21 -23, 2010 Edited by:Mariagrazia Pilotelli and Gian Paolo Beretta. Dipartimento di Ingegneria Meccanica e Industriale Università degli Studi di Brescia Brescia, Italy:  
Abstract: The coupling between thermal phenomena and friction mechanisms of a sliding contact has been extensively studied both from experimental and theoretical point of view in order to determine the heat generated by friction and the maximum temperature rise at the interface. Recently, it has been known that the friction intensity is not distributed evenly over the contact surface, due to the coupled surfaces distortion and consumption and to changes in the local friction intensity occurring, for instance, during long-term braking processes as evidenced by brake drums and disks deformations. In the above framework, the present work aims to study the thermal effect due to uneven heat generation under the contact area. A theoretical scheme providing a slab subjected to a moving heating source, featured by free shape description, and cooled by radiative-convective heat transfer to an ambient at uniform temperature is presented. The two-dimensional temperature field has been solved analytically in closed form. Results are presented and discussed in terms of the dimensionless key parameters involved in the problem description.
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