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</o:shapelayout></xml><![endif]--></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Plakáty jsou hotové a nahrané na uloz.to i na FTP. Heslo pro uloz.to je CVUT (s velkýma písmenama, bez diakritiky).<br><br></span><a href="http://www.uloz.to/xHiyiCh/plakaty-eps-zip">http://www.uloz.to/xHiyiCh/plakaty-eps-zip</a> <span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>(ve vektorech)</span><br><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.uloz.to/xvVHDnu/plakaty-cdr-zip">http://www.uloz.to/xvVHDnu/plakaty-cdr-zip</a> (originál Corel Draw)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.uloz.to/x4qsQrv/plakaty-pdf-zip">http://www.uloz.to/x4qsQrv/plakaty-pdf-zip</a> (export do PDF)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Snad tam nejsou žádné další chyby, do tisku to jde ráno a doufám, že se to stihne.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Jiří Holeček [mailto:akrijos@gmail.com] <br><b>Sent:</b> Tuesday, September 11, 2012 11:12 PM<br><b>To:</b> Martin Borýsek<br><b>Cc:</b> fse@fel.cvut.cz<br><b>Subject:</b> Re: [FSE] Plakáty do Itálie - beta verze<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#222222'>About The Team</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'>Formula SAE is a student design competition which originated in the U.S. in 1981. Since 1998 the competition known as Formula Student has begun in Europe. The goal of the competitors is to design and develop a formula car. The final evaluation also takes into account the costing and manufacturing technology problems including the carbon dioxide footprint of the whole design. All these parameters has to be considered by the student team playing a role of a fictive company which develops and sells this final product. The car has to be inexpensive, reliable and easily maintanable in order to succeed at the competitive market. The target customer is an unprofessional weekend autocross or sprint racer. The production plan is to meet a demand of 1000 units per year.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'>The time spent by students on this project is about 35 000 hours every year.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#222222'>FSE0.1 Prototype</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'>The spatial tubular frame is made from the structural steel. Its welding was performed using MAG method and the final frame was reinforced using honeycomb aluminium panels.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#222222'>Frame</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#222222'>The first generation car FSE.01 designed by CTU CarTech Electric Team is based on hybrid chassis which are made both from S235 tubular steel and EN AW 6082 aluminium alloy water cut panels. The main space frame is welded using MAG technology and subsequently reinforced using aluminium honeycomb panels glued into the frame. The rear part of the chassis made from the aluminium alloy is welded using TIG technology and bolted to the main space frame. This hybrid chassis, where the aluminium honeycomb panel is used as a main firewall component, provides a very safe cockpit for the driver. For the best driver's protection a 6-point safety belt is used. The car's bonnet is manufactured from the glass fibre composite.</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#222222'>Suspension</span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#222222'>Both axles are using independent and adjustable suspension system in order to provide an appropriate dynamic and handling car characteristics. The axles are equipped by a push-rod suspension type. The forces acting on the suspension are transmitted into the custom made shock absorbers via rocker arms. In order to increase and control the axle stiffness anti-roll bars are installed on both axles. The design of the whole chassis was subjected to the FEM analysis in order to ensure the required fatigue life.</span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Brakes & steering<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>FSE.01 brake system uses two independent hydraulic circuits equipped with adjustable biasing. The front wheels are provided by disc brakes mounted on the front uprights. Willwood GP320 front brake calipers are coupled with brake discs having an effective diameter of 223.4 mm. The rear disc brakes are mounted to the frame in order to reduce the rear unsprung mass. AP<o:p></o:p></p></div><div><p class=MsoNormal>Racing CP4227 rear brake calipers act on the brake disc equipped with an effective diameter of 194 mm. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>Above the driver's legs there is a mechanical steering system which includes RSK Trade cross cart steering rack with the ratio 90 mm displacement of the rack/ 360deg of steering wheel rotation. Steering wheel, which is made from glass fibre composite, includes electronic features showing the required data to the driver.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Battery Pack<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>We can proudly state that the energy needed for the propulsion of the vehicle is stored an accumulator pack of our design. This battery pack contains Li-Pol accumulator cells with an electrical capacity 40 Ah per each cell. The total number of the cells is 54 and the energy stored in the whole accumulator pack is as high as 8 kWh. The accumulators can be disconnected from the inverter by AIR contactors at any time. Two AIR contactors were used in order to fulfill the FSE rules. These two contactors can operate in case of both high voltage and high current event. All accumulator cells real-time monitored by the battery management system which is also used for the accumulator pack cooling management. The accumulator pack can be always disconnected manually at any circumstances.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal>Cell Distribution Scheme<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The accumulator pack contains six accumulator units (stacks) containing less than 5 MJ energy each. These stacks are connected in series. In every stack there are 9 accumulator cells in total. Each cell is equipped by a temperature sensor providing the increased safety of the whole accumulator pack. The container of every stack is manufactured from a self-extinguishing material in order to ensure desired degree of safety.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Mounting and safety<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The accumulator pack frame is a TIG welded aluminium structure. This design provides the required structural rigidity and the desired accumulator cells protection. This frame is mounted to the steel chassis of the car.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The weight of the final accumulator pack is 84 kg. The mounting of the accumulator pack has to withstand forces generated by a 20 g deceleration such that the accumulator container does not enter the driver’s cockpit area and therefore this loading path is crucial for the safety of the driver. The mounting has to be able to bear a loading generated by a deceleration of 10 g in all other directions.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Tak jsem to udělal až po battery pack. Zabralo mi to něco málo přes hodinu, ten zbytek už dneska do půlnoci nestihnu, tak aspoň máme něco. Možná těch informací tam je pak dál až moc. Musí to taky trochu vypadat tak aby se to lidem chtělo číst, kdyby se to zkrátilo a dalo větší písmo tak si myslim, že by to neuškodilo.<o:p></o:p></p></div></div></div></body></html>