Meccanica dei robot
[1] Di Gregorio, R., 1990, "Calcolo delle Frequenze Proprie e delle Forme Modali di Meccanismi in Funzione della Configurazione Assunta durante il Moto", DIEM-Università di Bologna, pubbl. n° 64, Bologna, Italia, Dicembre 1990;
[2] Di Gregorio, R., 1991, "Definizione della Logica di Regolazione per una Macchina Prova Pneumatici a Nastro", Pubblicazione depositata in Bologna, Bologna, Italia, Gennaio 1991;
[3] Di Gregorio, R., 1991, "Veicolo Cingolato da Neve: Problematiche ed Alcune Realizzazioni", Pubblicazione depositata in Bologna, Bologna, Italia, Gennaio 1991;
[4] Di Gregorio, R., 1992, "Simulazione Numerica del Comportamento Vibratorio dei Sistemi Articolati", Tesi del Dottorato di Ricerca in Meccanica Applicata (IV Ciclo), Univ. di Bologna e di Firenze, Bologna, Italia, Settembre, 1992;
[5] Parenti-Castelli, V. and Di Gregorio, R., 1995, "A Three-Equation Numerical Method for the Direct Kinematics of the Generalized Gough-Stewart Platform", Proceedings of the Ninth World Congress on the Theory of Machines and Mechanisms, Vol. 2, Milan, Italy, August 29 - September 2, 1995, pp.837-841;
[6] Parenti-Castelli, V. and Di Gregorio, R., 1996, "Real-Time Forward Kinematics of the General Gough-Stewart Platform Using Additional Rotary Sensors", Proceedings of the 5th UK Mechatronics Forum International Conference with the 3rd International Conference on Mechatronics and Machine Vision in Practice, Vol. 1, Guimaraes, Portugal, September 18-20, 1996, pp.113-118;
[7] Parenti-Castelli, V. and Di Gregorio, R., 1996, "A Real-Time Computation Scheme for the Direct Position Analysis of the 6-3 Stewart Platform", Proceedings of the 27th International Symposium on Industrial Robots, ISIR'96, Milan, Italy, October 6-8, 1996, pp.581-585;
[8] Parenti-Castelli, V. and Di Gregorio, R., 1996, "Closed-Form Solution of the Direct Kinematics of the 6-3 Type Stewart Platform Using One Extra Sensor", MECCANICA, Vol. 31, 1996, pp.705-714; 70.
[9] Di Gregorio, R., 1996, "La Misura nei Sistemi di Produzione Flessibili", Preprints del Dipartimento di Ingegneria dell' Università di Ferrara, pubbl. n° 23, Ferrara, Italia, Marzo 1996;
[10] Di Gregorio, R., 1996, "Prove Accelerate non Convenzionali: Analisi Critica del Materiale Presente in Letteratura", Preprints del Dipartimento di Ingegneria dell' Università di Ferrara, pubbl. n° 24, Ferrara, Italia, Marzo 1996;
[11] Di Gregorio, R., 1996, "Prove Accelerate non Convenzionali: Criteri di Progettazione di una Prova", Preprints del Dipartimento di Ingegneria dell' Università di Ferrara, pubbl. n° 25, Ferrara, Italia, Marzo 1996;
[12] Parenti-Castelli, V. and Di Gregorio, R., 1997, "Rotary and Linear Extra Sensors for the Actual Pose Determination of the Fully-Parallel Manipulators", Proceedings of the 6th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD'97, Cassino, Italy, June 26-28, 1997, pp. 371-376;
[13] Parenti-Castelli, V. and Di Gregorio, R., 1997, "Analisi Cinematica della Sospensione MacPherson", Atti del XIII Congresso Nazionale AIMETA, Vol. 2, Siena, Italia, 29 Settembre - 3 Ottobre, 1997, pp.81-86;
[14] Di Gregorio, R., 1998, "Sviluppo di Sistemi di Monitoraggio Basati sull' Analisi delle Vibrazioni", Atti della Giornata di Studio dell' A.I.M.A.N. su "Tecniche di Analisi per la Manutenzione di Impianti Industriali", Ferrara, Italia, 18 Giugno 1998;
[15] Parenti-Castelli, V. and Di Gregorio, R., 1998, "Real-Time Computation of the Actual Posture of the General Geometry 6-6 Fully-Parallel Mechanism Using Two Extra Rotary Sensors", ASME Journal of Mechanical Design, December 1998, Vol. 120, pp.549-554; (anche presentato al 1996 ASME Design Engineering Technical Conferences and Computers in Engineering Conference, Irvine, California, August 18-22, 1996, Paper No. 96-DETC/MECH-1010)
[16] Parenti-Castelli, V., Di Gregorio, R. and Lenarcic, J., 1998, "Sensitivity to Geometric Parameter Variation of a 3-DOF Fully-Parallel Manipulator", Proceedings of the 3rd International Conference on Advanced Mechatronics, ICAM'98, Okayama, Japan, August 1998, pp. 364-369;
[17] Di Gregorio, R. and Parenti-Castelli, V., 1998, "A Translational 3-DOF Parallel Manipulator", Advances in Robot Kinematics: Analysis and Control, Eds. Lenarcic J. and Husty M.L., Kluwer Academic Publishers, ISBN 0-7923-5169-X, pp. 49-58;
[18] Di Gregorio, R. and Parenti-Castelli, V., 1999, "Influence of Leg Flexibility on the Kinetostatic Behaviour of a 3-DOF Fully-Parallel Manipulator", Proceedings of the Tenth World Congress on the Theory of Machines and Mechanisms, Vol. 3, Oulu, Finland, June 20-24, 1999, pp.1091-1098;
[19] Di Gregorio, R. and Parenti-Castelli, V., 1999, “Influence of the Geometric Parameters of the 3-UPU Parallel Manipulator on the singularity loci”, Proceedings of the 1999 International Workshop on Parallel Kinematic Machines, PKM’99, Novembre 30, 1999, Milano, Italia;
[20] Di Gregorio, R. and Parenti-Castelli, V., 1999, "Optimal Solution for an Automated 3-DOF Bone Fixation Mechanism", Proceedings of the 8th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD'99, Munich, Germany, June 17-19, 1999, pp.329-333;
[21] Parenti-Castelli, V. and Di Gregorio, R., 1999, "Determination of the Actual Configuration of the General Stewart Platform Using Only One Additional Sensor", ASME Journal of Mechanical Design, March 1999, Vol. 121, pp.21-25; (anche presentato al 1995 ASME International Mechanical Engineering Congress & Exposition, San Francisco, California, November 12-17, 1995, Paper No. 95-WA/AD-6)
[22] Di Gregorio, R., 1999, "A General Formulation of the Flexible Manipulator Dynamics", International Journal of Computing Anticipatory Systems, Vol. 3, 1999, Edited by D.M. Dubois, CHAOS, Liège, Belgium, ISSN 1373-5411 ISBN 2-9600179-4-3, pp.273-287;
[23] Parenti-Castelli, V. and Di Gregorio, R., 2000, “Influence of Manufacturing Errors on the Kinematic Performances of the 3-UPU Parallel Mechanism”, Proceedings of the 2nd Chemnitz Parallel Kinematics Seminar, April 12-13, 2000, Chemnitz, Germany, pp. 85-100;
[24] Di Gregorio, R. and Parenti-Castelli, V., 2000, “Mobility Analysis of the 3-PSP Mechanism”, Proceedings of the 13th CISM-IFToMM Symposium on the Theory and Practice of Robots and Manipulators, RoManSy 2000, July 3-6, Zakopane, Poland;
[25] Di Gregorio, R., 2000, “Closed-Form Solution of the Position Analysis of the Pure Translational 3-RUU Parallel Mechanism”, Proceedings of the 8th Symposium on Mechanisms and Mechanical Transmissions, MTM 2000, October 19-22, 2000, Timisoara, Romania, Vol. 1, pp. 119-124;
[26] Di Gregorio, R. and Parenti-Castelli, V., 2000, “Benefits of Twisting the Legs in the 3-UPU Tsai Mechanism”, Proceedings of the Year 2000 Parallel Kinematic Machines International Conference (2000-PKM-IC) and the 2nd European-US PKM Forum, September 13-15, 2000, Ann Arbor, Michigan (USA);
[27] Parenti-Castelli, V., Di Gregorio, R. and Bubani, F., 2000, "Workspace and Optimal Design of a Pure Translation Parallel Manipulator", MECCANICA, Vol. 35, 2000, pp.203-214; (anche presentato al 14th Italian Congress on Theoretical and Applied Mechanics AIMETA, Como, Italy, October 6-9, 1999);
[28] Parenti-Castelli, V. and Di Gregorio, R., 2000, "A New Algorithm Based on Two Extra-Sensors for Real-Time Computation of the Actual Configuration of the Generalized Stewart-Gough Manipulator", ASME Journal of Mechanical Design, September 2000, Vol. 122, pp.294-298; ( anche presentato al 1998 ASME Design Engineering Technical Conference, Atlanta, Georgia, September 13-16, 1998, Paper No. DETC98/MECH-5965);
[29] Di Gregorio, R., 2001, “Kinematics of a new spherical parallel manipulator with three equal legs: the 3-URC wrist”, Journal of Robotic Systems, Vol. 18, Issue 5 (May 2001), pp.213-219;
[30] Di Gregorio, R., 2001, “A new parallel wrist using only revolute pairs: the 3-RUU wrist”, ROBOTICA, Vol. 19, Issue 3 (May 2001), pp. 305-309;
[31] Parenti-Castelli, V. and Di Gregorio, R., 2001, "Real-Time Actual Pose Determination of the General Fully-Parallel Spherical Wrist", Journal of Robotic Systems, Vol. 18, Issue 12 (December 2001), pp.723-729 (una versione lievemente modificata è stata inclusa nel Proceedings of the International Conference on Mechanical Transmissions and Mechanisms, MTM'97, Tianjin, China, July 1-4, 1997, pp.895-899);
[32] Di Gregorio, R. and Parenti-Castelli, V., 2001, "Kinematics of a 6-DOF Fixation Device for Long Bone Fracture Reduction", Journal of Robotic Systems, Vol. 18, Issue 12 (December 2001), pp.715-722;
[33] Di Gregorio, R., 2001, "Analytic formulation of the 6-3 fully-parallel manipulator's singularity determination", ROBOTICA, Vol. 19, Issue 6 (November 2001), pp. 663-667;
[34] Di Gregorio, R. and Parenti-Castelli, V., 2001, "Position Analysis in Analytical Form of the 3-PSP Mechanism", ASME Journal of Mechanical Design, March 2001, Vol. 123, pp.51-55; (anche presentato al 1999 ASME Design Engineering Technical Conferences, Las Vegas, Nevada, September 12-15, 1999, Paper No DETC99/DAC-8689);
[35] Di Gregorio, R. and Parenti-Castelli, V., 2001, "A new decoupled 6-DOF parallel mechanism for long bone fracture reduction", SYSTEMS SCIENCE, Vol. 27, No. 4 (2001) (special issue on “Advances in Robotics: Virtual Reality, Robot Manipulators, Bipeds and Mobile Robots” (Eds. S.G. Tzafestas and C.S.Tzafestas)), pp. 47-58; (anche presentato all’European Workshop on Service and Humanoid Robots, SERVICEROB 2001, Island of Santorini, Greece, June 24-28, 2001);
[36] Di Gregorio, R., 2001, "A new decoupled parallel manipulator", Proceedings of the 10th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD 2001, Vienna, Austria, May 16-18, 2001;
[37] Di Gregorio, R., 2001, "Singularity locus of the 3-RUU wrist", Proceedings of the 10th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD 2001, Vienna, Austria, May 16-18, 2001;
[38] Di Gregorio, R. and Parenti-Castelli, V., 2001, "Statics and performance indices of the 3-PSP mechanism", Atti del XV Congresso AIMETA di Meccanica Teorica e Applicata, AIMETA'01, Taormina, Italia, 26-29 Settembre 2001;
[39] Di Gregorio, R. and Parenti-Castelli, V., 2002, "Mobility Analysis of the 3-UPU Parallel Mechanism Assembled for a Pure Translational Motion", ASME Journal of Mechanical Design, Vol. 124, No.2 (June 2002), pp. 259-264; (una versione ridotta è stata presentata anche in: Proceedings of the 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM'99, Atlanta, Georgia, September 19-23, 1999, pp 520-525) ;
[40] Di Gregorio, R., 2002, "Singularity-Locus expression of a class of parallel mechanisms", ROBOTICA, Vol. 20, No. 3 (May 2002), pp. 323-328; (anche depositato come Preprints del Dipartimento di Ingegneria dell' Università di Ferrara, pubbl. n° 99, Ferrara, Italia, 26 Settembre 2001);
[41] Di Gregorio R., 2002, “A new family of spherical parallel manipulators,” ROBOTICA, Vol. 20, issue 4 (July 2002), pp. 353-358;
[42] Di Gregorio, R., 2002, “Translational parallel manipulators: new proposals,” Journal of Robotic Systems, Vol. 19, issue 12 (December 2002), pp.595-603;
[43] Di Gregorio, R., 2003, “Kinematics of the 3-UPU wrist”, Mechanism and Machine Theory, Vol. 38, Issue 3 (March 2003), pp.253-263; (la prima versione di questo articolo risale a Settembre 2000);
[44] Di Gregorio, R. and Sinatra, R., 2002, "Singularity curves of a parallel pointing system", MECCANICA, Vol. 37, No. 3, pp. 255-268, 2002; (una versione ridotta è stata anche presentata in: Atti del XV Congresso AIMETA di Meccanica Teorica e Applicata, AIMETA'01, Taormina, Italia, 26-29 Settembre 2001);
[45] Di Gregorio, R., 2002, "Analytic determination of workspace and singularities in a parallel pointing system", Journal of Robotic Systems, Vol. 19, Issue 1 (January 2002), pp.37-43;
[46] Di Gregorio, R. and Parenti-Castelli, V., 2002, “Fixation devices for long bone fracture reduction: an overview and new suggestions”, Journal of Intelligent and Robotic Systems, Vol. 34, No. 3 (July 2002), pp. 265-278, 2002;
[47] Di Gregorio, R., 2002, “Mobility analysis of the 3-RRPRR wrist,” Proceedings of the 11th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD 2002, Balatonfured, Hungary, June 30- July 2, 2002, pp. 243-248;
[48] Di Gregorio, R., 2002, “Kinematics of a new translational parallel manipulator,” Proceedings of the 11th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD 2002, Balatonfured, Hungary, June 30- July 2, 2002, pp. 249-254;
[49] Di Gregorio, R. and Parenti-Castelli, V., 2002, “Dynamic performance indices for 3-DOF parallel manipulators,” Advances in Robot Kinematics: Theory and Applications, J. Lenarcic and F. Thomas (Eds.), Kluwer Academic Publishers, The Netherlands, 2002, pp. 11-20 (ARK 2002, June 26-30, 2002, Caldes de Malvella Spain);
[50] Di Gregorio, R. and Parenti-Castelli, V., 2002, “Geometric errors versus calibration in manipulators with less than 6 DOF,” Proceedings of the 14th CISM-IFToMM Symposium on Robotics, Ro.Man.Sy. 2002, Udine, Italy, July 1-4, 2002;
[51] Di Gregorio, R. and Parenti-Castelli, V., 2002, “ Geometric error effects on the performances of a parallel wrist” Proceedings of the 3rd Chemnitz Parallel Kinematics Seminar, April 23-25, 2002, Chemnitz, Germany, pp. 1011-1024;
[52] Di Gregorio, R. and Zanforlin, R., 2003, “Workspace analytic determination of two similar translational parallel manipulators,” ROBOTICA, Vol. 21, issue 5 (October 2003), pp. 555-566;
[53] Di Gregorio, R., 2003, “Inverse position analysis, workspace determination and position synthesis of parallel manipulators with 3-RSR topology,” ROBOTICA, Vol.21, issue 6 (December 2003), pp. 627-632;
[54] Di Gregorio, R., 2003, “Static analysis and performance indices of the 3RRS wrist,” Proceedings of the 12th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD 2003, Cassino, Italy, May 7-10, 2003, Paper No. 066RAAD03;
[55] Di Gregorio, R. and Parenti-Castelli, V., 2003, “On the multiple solutions of the direct position analysis of parallel mechanisms,” Proceedings of the 12th International Workshop on Robotics in Alpe-Adria-Danube Region, RAAD 2003, Cassino, Italy, May 7-10, 2003, Paper No. 071RAAD03;
[56] Di Gregorio, R., 2004, “Determination of singularities in DELTA-like manipulators,” The International Journal of Robotics Research, Vol. 23, issue 1 (January 2004), pp. 89-96; (una versione lievemente modificata intitolata “Rotation singularities in the DELTA-like manipulators,” è stata anche pubblicata in Proceedings of ASME 2002 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC/CIE 2002, Montreal, Canada, September 29-October 2, 2002, Paper No. DETC2002/MECH-34264; mentre la prima bozza di questo lavoro risale a Luglio 2000);
[57] Di Gregorio, R., 2004, "Statics and singularity loci of the 3-UPU wrist", IEEE Transactions on Robotics, Vol. 20 (2004), No. 4, pp. 630-635; (una versione ridotta è stata anche pubblicata in Proceedings of 2001 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM'01, Como, Italy, July 8-11, 2001);
[58] Di Gregorio, R., 2004, “Kinematics of the 3-RSR wrist,” IEEE Transactions on Robotics, Vol. 20 (2004), No. 4, pp. 750-754; (una versione ridotta è stata anche pubblicata in Proceedings of the 11th IEEE International Conference on Advanced Robotics 2003, ICAR2003, Coimbra, Portugal, June 30 –July 3, 2003, Vol. 3, pp. 1769-1774);
[59] Di Gregorio, R. and Parenti-Castelli, V., 2004, “Dynamics of a class of parallel wrists,” ASME Journal of Mechanical Design, Vol. 126, No. 3 (May 2004), pp. 436-441; (anche pubblicato in Proceedings of ASME 2002 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC/CIE 2002, Montreal, Canada, September 29-October 2, 2002, Paper No. DETC2002/MECH-34229);
[60] Di Gregorio, R., 2004, “Forward problem singularities of manipulators which become PS-2RS or 2PS-RS structures when the actuators are locked,” ASME Journal of Mechanical Design, Vol. 126, No. 4 (July 2004), pp. 640-645; (anche pubblicato in Proceedings of ASME 2003 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’03, Chicago, Illinois (USA), September 2-6, 2003, Paper No. DETC2003/DAC-48821);
[61] Di Gregorio, R., 2004, “The 3-RRS wrist: a new, simple and non-overconstrained spherical parallel manipulator,” ASME Journal of Mechanical Design, Vol. 126, No. 5 (September 2004), pp. 850-855; (anche pubblicato in Proceedings of ASME 2002 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC/CIE 2002, Montreal, Canada, September 29-October 2, 2002, Paper No. DETC2002/MECH-34344);
[62] Di Gregorio, R., 2004, "Kinematics of the translational 3-URC mechanism," ASME Journal of Mechanical Design, Vol. 126, No. 6 (November 2004), pp. 1113-1117; (anche pubblicato in Proceedings of 2001 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM'01, Como, Italy, July 8-11, 2001);
[63] Di Gregorio, R., 2004, “On the direct problem singularities of a class of 3-DOF parallel manipulators,” ROBOTICA, Vol. 22, No. 4 (Agosto 2004), pp. 389-394; (una versione modificata, intitolata “Direct kinematics of a class of 3-DOF parallel manipulators,” è stata pubblicata in Proceedings of the 11th IEEE International Conference on Advanced Robotics 2003, ICAR2003, Coimbra, Portugal, June 30 –July 3, 2003, Vol. 1, pp. 550-555);
[64] Di Gregorio, R., and Parenti-Castelli, V., 2004, “Comparison of 3-DOF parallel manipulators based on new dynamic performance indices”, Proceedings of the 11th World Congress in Mechanism and Machine Science, IFToMM 2003, August 18-21, 2003 (posticipato a April 1-4, 2004), Tianjin-China;
[65] Di Gregorio, R. and Parenti-Castelli, V., 2004, “Design of 3-DOF parallel manipulators based on dynamic performances,” Proceedings of the 4th Chemnitz Parallel Kinematics Seminar, PKS2004, Chemnitz, Germany, April 20-21, 2004;
[66] Di Gregorio, R. and Parenti-Castelli, V., 2004, “Kinematic isotropy and dynamic performances in translational parallel manipulators,” On Advances in Robot Kinematics, J. Lenarcic and C. Galletti (Eds.), Kluwer Academic Publishers, The Netherland, 2004, pp. 255-264;
[67] Di Gregorio, R., 2005, “Forward problem singularities in parallel manipulators which generate SX-YS-ZS structures,” Mechanism and Machine Theory, Vol. 40 (2005), issue May 2005, pp. 600-612; (una versione modificata dal titolo “Properties of the SX-YS-ZS structures and singularity determination in parallel manipulators which generate those structures,” è stata pubblicata in Proceedings of the ASME 2004 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’04, Salt Lake City, Utah (USA), September 28- October 2, 2004, Paper No. DETC2004-57065);
[68] Di Gregorio, R., 2005, “Direct position analysis of parallel manipulators which generate SP-2PS structures,” ROBOTICA, Vol. 23, issue 4 (July 2005), pp. 521-526;
[69] Di Gregorio, R. and Parenti-Castelli, V., 2005, “On the characterization of the dynamic performances of planar manipulators,” MECCANICA, Vol. 40, issue 3 (June 2005), pp. 267-279; (una versione ridotta di questo articolo è stata pubblicata in Atti del XVI Congresso AIMETA di Meccanica Teorica e Applicata, AIMETA'03, Ferrara, Italia, 9-12 Settembre 2003);
[70] Di Gregorio R. and Parenti-Castelli V., 2005, “Systematic sensitivity analysis of spatial one-dof models of diarthrodial joints,” Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’05, Long Beach, California (USA), September 24 - 28, 2005, Paper No. DETC2005-84939;
[71] Di Gregorio R., Cammarata A. and Sinatra R., 2005, “On the dynamic isotropy of mechanisms with two degrees of freedom,” Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’05, Long Beach, California (USA), September 24 - 28, 2005, Paper No. DETC2005-85023;
[72] Di Gregorio R., 2005, “On the polynomial solution of the synthesis of five plane-sphere contacts or PPS chains that guide a rigid body through six assigned poses,” Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’05, Long Beach, California (USA), September 24 - 28, 2005, Paper No. DETC2005-84788;
[73] Di Gregorio, R., 2006, “Dynamic model and performances of 2-DOF manipulators,” ROBOTICA, Vol. 24, issue 1 (January 2006), pp. 51-60; (una versione ridotta è stata pubblicata in Proceedings of the ASME 2004 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’04, Salt Lake City, Utah (USA), September 28- October 2, 2004, Paper No. DETC2004-57129);
[74] Di Gregorio, R., 2006 “Analytic Form Solution of the Direct Position Analysis of a Wide Family of Three-Legged Parallel Manipulators,” ASME Journal of Mechanical Design, Vol. 128, No. 1 (January 2006), pp. 264-271; (due estratti di questo articolo sono stati pubblicati in Proceedings of the ASME 2004 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’04, Salt Lake City, Utah (USA), September 28- October 2, 2004: Paper No. DETC2004-57037 e Paper No. DETC2004-57036);
[75] Di Gregorio R., 2006, “Analytic form solution of the forward position analysis of three-legged parallel mechanisms generating SR–PS–RS structures,” Mechanism and Machine Theory, Vol. 41 (2006), issue 9 (September 2006), pp. 1062-1071; (una versione ridotta di questo articolo è stata pubblicata in Proc. of the 22nd International Symposium on Automation and Robotics in Construction, ISARC 2005, September 11-14, 2005, Ferrara (Italy), Paper No. 94);
[76] Di Gregorio R., 2006, “Forward position analysis of the SP-PS-RS architectures,” International Journal of Robotics and Automation, Vol. 21 (2006), Issue 4, DOI: 10.2316/Journal.206.2006.4.206-2976 (una versione ridotta è stata anche pubblicata su Proc. of the 22nd International Symposium on Automation and Robotics in Construction, ISARC 2005, September 11-14, 2005, Ferrara (Italy), Paper No. 95);
[77] Di Gregorio R. and Parenti-Castelli V., 2006, “A new approach for the evaluation of kinematic and static performances of a family of 3-UPU translational manipulators,” Proceedings of the 16th CISM-IFToMM Symposium on Robot Design, Dynamics, and Control, RoManSy’06, Eds. Zielinska T. and Zielinski C., ISBN: 3-211-36064-6, Warsaw, Poland, June 20 - 24, 2006, pp. 47-54;
[78] Di Gregorio R. and Parenti-Castelli V., 2006, “Dynamic performance evaluation and design of three and less-than-three degrees of freedom parallel manipulators,” Proceedings of the 2006 Chemnitz Parallel Kinematics Seminar, PKS 2006, Chemnitz, Germany, April 25 - 26, 2006, pp. 213-231;
[79] Di Gregorio, R., 2006 “Analytic Form Solution of the Direct Position Analysis of a Wide Family of Three-Legged Parallel Manipulators,” ASME Journal of Mechanical Design, Vol. 128, No. 1 (January 2006), pp. 264-271; (due estratti di questo articolo sono stati pubblicati in Proceedings of the ASME 2004 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’04, Salt Lake City, Utah (USA), September 28- October 2, 2004: Paper No. DETC2004-57037 e Paper No. DETC2004-57036)
[80] Di Gregorio R., 2007, “A novel geometric and analytic technique for the singularity analysis of one-dof planar mechanisms,” Mechanism and Machine Theory, Vol. 42, issue 11 (November, 2007), pp. 1462-1483;(una versione ridotta di questo articolo è stata pubblicata su Proceedings of the ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC’06, Philadelphia, Pennsylvania (USA), September 10 - 13, 2006, Paper No. DETC2006-99094);
[81] Di Gregorio R., 2007, “Parallel manipulators with lower mobility,” in: Industrial Robotics: Theory, Modelling and Control, Ed. Sam Cubero, (ARS International, Vienna, Austria), published by pIV pro literatur Verlag Robert Mayer-Scholz, Mammendorf (Germany), January 2007, ISBN: 3-86611-285-8, pp. 557-572;
[82] Di Gregorio R., 2007, “An analytical method to locate secondary instant centers of indeterminate linkages,” Proceedings of the 12th IFToMM World Congress, Besançon (France), June18-21, 2007, Paper ID: 76; (una versione estesa di questo articolo è stata accettata per la pubblicazione su ASME Journal of Mechanical Design (pubblicazione prevista nel Vol. 130, No.4 (April, 2008));
[83] Di Gregorio R., 2007, “Singularity analysis of multi-dof planar mechanisms,” Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE’07, Las Vegas, Nevada (USA), September 4 - 7, 2007, Paper No. DETC2007-34250;(una versione estesa di questo articolo è stata accettata per la pubblicazione su Mechanism and Machine Theory);
[84] Di Gregorio R., 2007, “Parallel wrists: limb architectures and mobility analysis,” in: Proceedings of the 2nd EURON Winter School - Parallel Robots: Theory and Applications, EURON 2007, Benidorm (Spain), March 25 - 30, 2007, available on-line: http://isa.umh.es/vr2/euron07/doc/Raffaele/Spherical%20Wrists%20I.pdf ;
[85] Di Gregorio R., 2007, “Parallel wrists: singularities and performance indices,” in: Proceedings of the 2nd EURON Winter School - Parallel Robots: Theory and Applications, EURON 2007, Benidorm (Spain), March 25 - 30, 2007, available on-line: http://isa.umh.es/vr2/euron07/doc/Raffaele/Spherical%20Wrists%20II.pdf ;
[86] R. Di Gregorio, 2008, "Determination of the Instantaneous Pole Axes in Single-Dof Spherical Mechanisms," Proc. of the ASME 2008 Int. Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2008, August 3-6, 2008, Brooklyn, New York (USA), Paper No.: DETC2008-49084;
[87] Di Gregorio R., 2008, "A novel point of view to define the distance between two rigid-body poses," Advances in Robot Kinematics: Analysis and Design, ARK2008, Eds. J. Lenarcic and P. Wenger, Casa Editrice: Springer Scince + Business Media, Amsterdam (the Netherlands), ISBN: 978-1-4020-8599-4, pp. 361-369;
[88] Borras, J. and Di Gregorio, R., 2008, “Direct Position Analysis of a Large Family of Spherical and Planar Parallel Manipulators with Four Loops,” accetta per la presentazione al 2nd Int. Workshop on Fundamental Issues and Future Research Directions for Parallel Mechanisms and Manipulators, Paper ID: 119;
[89] Di Gregorio R., 2008, “An Algorithm for Analytically Calculating the Positions of the Secondary Instant Centers of Indeterminate Linkages," ASME Journal of Mechanical Design, Vol. 130, No. 4 (April 2008), pp. 042303 (9 pages), DOI: 10.1115/1.2839008; (una versione ridotta di questo articolo con il titolo “An analytical method to locate secondary instant centers of indeterminate linkages,” è stata pubblicata in a Proceedings of the 12th IFToMM World Congress, Besançon (France), June18-21, 2007, Paper ID: 76).
