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SMAT2008T10THE FINIT ELEMENT METHOD USED FOR THE STRESS STATEDETERMINATION AT THE SPRAYERS’ NOZLESSSorin – Tiberiu BUNGESCU*, Sorin – Ştefan BIRIŞ**, Valentin VLĂDUŢ***,Lorin PILOCA*, Florin IMBREA*The study about the stress state from nozzles of the pest and diseases control through chemical machinery,represent a very important problem regarding the optimization of the parameters of nozzles on the basis of theminimum weight’s criterion. This calculus can be done successfully by means of the analysis method with the finiteelements.Key Words: Finite Elements Method, COSMOS/M programme, stress, digitizationSMAT2008T11THE MEASURE EQUIPMENT OF THE RESISTANCE FORCESTO THE TRACTION OF THE CARRIED AGRICULTURE MACHINEON TRACTOR REAR MOUNTED THREE POINT LINKAGEBY THE 3 RD AND THE 4 TH CATEGORYAugustin CONSTANTINESCUSimion POPESCUAbstract: In the paper it is presented the measure equipment by the strain gauge used for measuringof resistance forces to opposed traction, in work, by big power tractors equipped with rear mounted threepoint linkage of the 3 rd and the 4 th category according of standard SR ISO 730-1+C1.Keywords: tractor, agriculture machine, traction force, strain carcassConstantinescu Augustin, Lecturer Ph. D. student, University of Craiova, Faculty of Mechanics, Department of RoadVehicles, Equipments and Machines for Agriculture, E-mail gusti_constantinescu@Yahoo.com, tel: +40 251 143739Popescu Simion, Professor Ph. D., University “Transilvania” of Braşov, Faculty of Nourishmentand Tourism, Department Food Product Engineering, E-mail simipop@unitbv.roSMAT2008 V61VELOCITY FIELD FOR EPICYCLICGEAR TRAINSMihaela BUCULEI, Nicolae CRACIUNOIU, Nicolae DUMITRU,Dan B. MARGHITU, Daniel PICIOREAAbstract: Kinematic analysis plays an important role in the design of kinematic chainswith gears and a thorough understanding of the subject is fundamental towards achieving anoptimal solution. This study aims at providing an algebraic method to compute the velocities of aclosed kinematic chain with gears. The method of contour equations is very efficient and can beapplied to planar and spatial epicyclic gear trains.39