rulesquestionsummaryforwebsite

rulesquestionsummaryforwebsite内容摘要：

2020 Revision. Furthermore any front bulkhead which supports the IA plate must have a perimeter shear strength equivalent to a mm thick steel plate. • • We are unsure as to what constitutes a front bulkhead supporting the IA plate. • Does the IA Plate refer to the anti intrusion plate? • Does Supporting the IA Plate mean bolting the anti intrusion plate to the bulkhead • Because the Anti Intrusion Plate extends to the outer edges of the bulkhead, is it not being supported by the front bulkhead and front roll hoop supports as well? • • We are a bit confused about this rule as it requires around 56mm thick facesheets of carbon fibre to pass the perimeter shear requirement, and I know that in the past other teams have had nowhere near that, so it would be good to get some clarification. • The basic rules help clarify in addition to the specific monocoque requirements. As per • On all cars, a mm ( in) solid steel or mm ( in) solid aluminium “antiintrusion plate” must be integrated into the Impact Attenuator. If the Impact Attenuator and AntiIntrusion Plate (Impact Attenuator Assembly) are bolted to the Front Bulkhead, it must be the same size as the outside dimensions of the Front Bulkhead. If it is welded to the Front Bulkhead, it must extend at least to the centreline of the Front Bulkhead tubing in all directions. • it clarifies that the IA plate and AntiIntrusion plate are the same item. • • Reference in to a bulkhead supporting the IA plate applies for all cases where the bulkhead is of monocoque construction rather than tubular metal. • If the IA plate does not extend to the outer periphery of the bulkhead then a support meeting this requirement must be provided across the front bulkhead plane. If your IA extends, and is bolted, to the outer periphery of the bulkhead, then in addition to verifying that the EI of your posite bulkhead (whether of L section or other shape) it must also meet the perimeter shear strength equivalency to a mm steel section. • This added requirement versus a tubular metal bulkead is to protect for the potential brittle failure of a monocoque structure and is based on overseas experience. • • FSAEA Rules Committee” Question Answer 17/2020 • Monocoque Front Bulkhead • See Rule for general requirements that apply to all aspects of the monocoque. In addition when modeled as an L shaped section the EI of the front bulkhead about both vertical and lateral axis must be equivalent to that of the tubes specified for the front bulkhead under . The length of the section perpendicular to the bulkhead may be a maximum of (1) measured from the rearmost face of the bulkhead. • Furthermore any front bulkhead which supports the IA plate must have a perimeter shear strength equivalent to a mm thick steel plate. • Is the perimeter shear strength for this rule calculated from the first peak as for shear strength, or the second peak in the load/displacement graph as for perimeter shear strength in • In response to your query, for equivalence to a mm thick steel plate, the perimeter shear strength for this rule should be calculated from the second peak in the load/displacement graph as for perimeter shear strength in • Yours Sincerely • FSAEA Rules Committee” Question Answer 21/2020 • Modification of the metal part as you propose is acceptable as it should not create added weight or load input to the fuel rail. You must ensure that the OE design and parts making the connection to the plastic parts are maintained as originally supplied. Question Answer • “ (Page 86) Fuel Injection System Requirements Add。 Fuel Rails: In line with Formula Student, the fuel rail must not be made from any form of flammable material, plastic, carbon fibre or rapid prototyping material, except that unmodified OE Fuel Rails manufactured from these materials and supplied with the engine are acceptable.” • • We currently use the Honda CBR600RR (0709) engine and I have attached an image of its OE fuel rail to this for reference. As you can see it is made from three parts, two of which are plastic (previously disallowed material) and the centre part being made of a metal (previously allowed material regardless of modification). I would like to clarify if modifying the metal part of the fuel rail would conflict with this rule, even if the plastic parts were to remain unchanged? • • We would like to modify the centre piece/machine our own which would allow us to only have one port to the rail, as we run a returnless system which differs to the stock fuel system which requires a supply and return port on the rail. This modification would also allow us to use a different, more suitable fitting. • • If you could advise as to whether or not this action would conflict with the above mentioned rule that would be greatly appreciated. 22/2020 • An electrically driven supercharger is acceptable but it must receive its primary input energy from the alternator/generator driven by the IC engine and use the same battery that is used to start the vehicle and is recharged by the alternator/generator. A separate battery to power the supercharger would not be acceptable, as it would contravene the rules by providing another source of unmeasured stored energy. • FSAEA Rules Committee” Question Answer • I have a question about rule from article 1 titled Engine limitation“ • It reads Hybrid powertrains, such as those using electric motors running off stored energy, are prohibited. We would like to run an electric supercharger with our internal bustion engine. Is the intent of this rule just to prohibit you from running an electric motor that directly powers。