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SMAT2008V45GENERAL ALGORITHM FOR DETERMINATION OF THE EFFORTSOF THE CRANK- SLIDER MECHANISM WITH CLEARANCE INSIDE THECRANKPIN BEARINGJan-Cristian GRIGORE, Nicolae PANDREAAbstract: On simulate the crankpin bearing clearance by introducing an inertialess element with same length withthe clearance. The obtained mechanism has two degree of movement. In the case of uniform rotation motion it obtainsfour differential equations with three constraints which are solved by Runge Kutta method for numerical case.Keywords: clearance, slider-crank mechanism, crankpin bearing, inertia, efforts.Jan-Cristian GRIGORE, S.l. drd. eng., University of Piteşti, Department of Applied Mechanics,tel. +40248217736, e-mail: jan_grigore@yahoo.comNicolae PANDREA, prof. dr. eng., University of Piteşti, Department of Applied Mechanics,tel. +40248217736, e-mail: nicolae_pandrea37@yahoo.comSMAT2008V46THE CALCULATION OF THE COMFORT INDICES, PMV AND PPD,DEPENDING ON THE DIFFERENT PARAMETERSMariana IVANESCU, Stefan TABACU, Ion TABACU, Ionel VIERUAbstract: Lately, the most of the automotives manufactures have focused on the increasing of thehabitable comfort.The thermal comfort sensation is assures by the factors that depend on the warmth exchange betweenthe human body and the ambient environment.It is well known that one of the requirements to be fulfilled is that a person to be in thermal neutrality according tothe comfort equation. This is described and evaluated by the PMV – PPD (Predicted Mean Vote – Predicted Percentageof Dissatisfied) indices (ISO 7730), which take into account the following six parameters: activity, clothing, airtemperature, mean radiant temperature, air velocity and humidity. Keywords: human thermal comfort, comfort zones,mean radiant temperature, PMV - PPD indices, passenger compartment.Mariana Ivănescu, Lecturer, Phd. eng., University of Piteşti, Faculty of Mechanics andTechnology, Automotive Department, mariana.ivanescu@upit.ro, Office Phone: 0248/218166.Stefan Tabacu, Lecturer, Phd. eng., University of Piteşti, Faculty of Mechanics and Technology,Automotive Department, stefant@upit.ro, Office Phone: 0248/218166.Ion Tabacu, Professor Phd. eng. University of Piteşti, Faculty of Mechanics and Technology,Automotive Department, tabacui@upit.ro, Office Phone: 0248/218166.Ionel Vieru, Lecturer, Phd. eng., University of Piteşti, Faculty of Mechanics and Technology,Automotive Department, ionel.vieru@upit.ro,27