As per rules, mentioned in fsae rulebook 2017 for impact attenuator. Jan 03, 2015 9 the impact attenuator is designed in such a way that it can absorb more than 7350 joules of energy. Complete geometry was done by means of the software for 3d modeling. All requests will have a confirmation of receipt sent to the team. In addition to those requirements, the impact attenuator, when mounted on the front of a vehicle with a total mass of 300 kg 661 lbs and run into a solid, nonyielding impact barrier at a velocity of 7. The analysis was performed based on computerized simulation software for calculated the. The impact attenuator was designed to absorb 7350 j of energy. The fsae rules require the impact attenuator have minimum dimensions of 150 mm by 200 mm by 100 mm or 5. The importance of impact attenuator ia in reducing the collisions impact during an accident. A two stage impact attenuator was built for testing.
Impact attenuator data iad and supporting calculations must be submitted electronically in adobe acrobat format. Drop test analysis of impact attenuator for formula sae car ijsrp. Plascore provides a full range of certified deformable barriers, crushable core, as well as custom honeycomb configurations for a wide array of energy absorption applications. Optimization of impact attenuator design using finite.
Students design impact attenuator with plascore aluminum honeycomb. It is very important to notice that it was not used all car body structure, but only the frame that. Drop test analysis of impact attenuator for formula sae car devender kumar, sachin kumar, gagandeep singh, naman khanna. Design of impact attenuator aluminum can impact attenuator we designed a shell of aluminum sheet for accommodating the cans. Design, manufacture and testing of an impact attenuator for a. Impaxx 700 foam is a highly engineered, extruded, thermoplastic foam that utilizes dow proprietary process technology to maximize efficiency and minimize weight. The sole purpose of the project is to focus on a very important aspect of the vehicle which is the impact attenuator. Additional information shall be kept concise and relevant. The document attached below only specifies that the report is to be written in engineering style. Mar 01, 2008 physical simulation of the 2007 wave shape model attenuator. Design and fabrication of impact attenuator for formula sae car written by harsh vardhan tripathi, maneesh kumar mishra, rahul singh published on 20180511 download full article with reference data and citations. Attenuator is at least 200mm wide by 100mm high for at least 200mm.
The type 11 impact attenuator is approved for the 2011 fsae competition season only and the minimum required design may change in future years. Drop test analysis of impact attenuator for formula sae car. You might be able to make a lighter attenuator if you do quasistatic but you may also be penalised in your design score. Fsae impact attenuator manufactured from dow impaxx 700 product details impaxx 700 foam is a highly engineered, extruded, thermoplastic foam that utilizes dow proprietary process technology to maximize efficiency and minimize weight. Wpis fsae racecar requires an impact attenuator that can protect the driver and frame when mounted on the front bulkhead of the vehicle. An overview of design optimization of impact attenuator. Pdf design and static structural analysis of a race car. Pdf design of the impact attenuator for a formula student racing. Epp foam material with a density of 100 gl as basic material was selected to design a lightweight impact attenuator.
System model concept 1 chassis design and impact attenuator loads and. Chassis and impact attenuator design for formula student racing car. Formula sae standard impact attenuator fsaeia12 as per rule b3. This attenuator is a device intended to reduce the damage. Design of the impact attenuator for a formula student racing car 54 2. Also, the design outlines of shape and analysis techniques were defined in the first design step. The dimensions of the shell were in accordance with the requirements of the impact attenuator as mentioned in the fsae rulebook. Formula sae standard impact attenuator fsae ia12 as per rule b3. Jun 03, 2010 solidworks sae design project teaches students how to use solidworks software to help design a vehicle for the formula sa. This project included the design, modeling, fabrication and testing of two impact attenuator design. Such structure should be lightweight, resistant and deformable enough to limit the. In order to research energy absorption characteristic of aluminum honeycomb material, quasistatic and dynamic outofplane compression experiments are carried out on a doublelayer aluminum honeycomb impact attenuator of one fsae racing car. You do not have the required permissions to view the. What software should i be using to simulate the foam designs.
Many parts of a fsae racing car has been studied, including impact attenuators 12 3 456. Formula sae safety rules dictate a 7 ms or approximately 15. Geometric modelling to perform any type of worthwhile analysis, the design team decided the geometrical limits of the impact attenuator should be determined. Through my work i had to design the geometry, considering factors such as aerodynamics, manufacturability and the connection. As for the fsae rules, the impact attenuator must be numerical and experimental analysis of an. Design of the impact attenuator for a formula student racing car. Design and physical testing of impact attenuator for fsae. Design of the impact attenuator the impact attenuator is such safety structure installed on. Lower leg impact protection structural panels load floors sun shades. Design of the impact attenuator for a formula student racing car 56 3. An overview of design optimization of impact attenuator for.
According to the regulations of fsae 1 the designed impact attenuator, when mounted on the front of a vehicle with a total mass of 300 kgs 661 lbs and run into a solid nonyielding impact barrier with a velocity of impact of 7. The simulated results, however, cannot be used directly. The finite element model of the structure was developed by means of the software code hyper mesh. Design of the impact attenuator for a formula student. Design of crash worthy impact attenuator for racing. Design and experimental verification of composite impact attenuator for racing vehicles.
Design and physical testing of impact attenuator for formula sae race car nikhil s. The only constraint for the maximum volume of the impact attenuator is the nose cone of the racecar. Design of a formula student impact attenuator tue 1. The drop test was conducted from a drop height of 5 m with 150 kg of dropping mass. Design and experimental analysis of an impact attenuator 57 aluminium 6082 t6 foils are commercially available. Overall dimensions of the attenuator taken were 210 x 210 x 100 mm3. The design will then be published on the fsae website. Finally the crash event simulation has been developed by. Design and development of impact attenuator for racecar safety abhishek g. According to fsae rulebook, attenuator should have specified minimum dimensions and mounting constraints. Impact attenuator physical simulation fsaeudo 07 youtube. Numerical simulation of several impact attenuator design for a. Design and fabrication of impact attenuator for formula sae. In the 2015 fsae competition rules, the impact attenuator must satisfy the following requirements.
Amit telang departmentof mechanical engineering, manit bhopal. Design of the impact attenuator for a formula student racing. The prime intension is to present a design of impact attenuator which can be used in formula sae racecars. Submit the iad report as instructed on the event website. Also, wording such as or equivalent is not to be used when specifying these systems. This material is highly weldable using tig welding. This project deals with building of crashprotective device for an fsae car. Design and experimental validation of carbon fiber impact. Attenuators will not include optional radii on edges or mounting holes.
The shell was designed in two stages in the shape of cuboids as. Optimization of impact attenuator design using finite element method for enhanced vehicle safety during collision vikas shrivastava, dr. Based on the calculated results, it is found that impact attenuator made up of aluminum cans satisfies all functional requirements and design rules set up by formula sae. In the formula sae events undergraduate and graduate students are required to conceive, design, fabricate and compete with a small, formulastyle, race car.
In terms of the actual impact it has on your carcompetition performance. An ebook reader can be a software application for use on a computer such as microsofts free reader application. This project aims to manufacture an ia that is costeffective for fsae car. Yesno attach additional information below this point andor on additional sheets test schematic, photos of test, design report including reasons for selection and advantagesdisadvantages, etc. Properly fabricated and mounted impact attenuators. Formula sae, impact attenuator, quasistatic testing. It now requires minimum 8 bolts up from the minimum 4 from past years. Finite element model complete simulation was done using finite element model developed in hyper mesh software. The whole car is made according to the fsae rulebooks which makes this car the safest race car to ride on track. This impact attenuator is manufactured using materials mentioned before. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized computer this is used solely as a reading device such as nuvomedias rocket ebook. An educational engineering exercise at philadelphia university munzer sy ebaid, shatha ammoura, and kutiaba jm alkhishali international journal of mechanical engineering education 2016 44. Design, build, and test a formula student racing car.
To perform any type of worthwhile analysis, the design team decided the geometrical limits of the impact attenuator should be determined. Each automobile has an impact attenuator to protect drivers life. Design of the impact attenuator the impact attenuator is such safety structure installed on car that could absorbs energy during frontal collision by progressive deformation. Monocoque front impact attenuator for fsae with vartm, kanazawa university, kado corporation, published bysociety of automotive. Thanks to that, major damage that can affect the driver, prevented by this system. Design and experimental verification of composite impact. Design and static structural analysis of a race car chassis for formula society of automotive engineers fsae event article pdf available in journal of physics conference series 9081. Design and fabrication of impact attenuator for formula sae car. So, my team is planning to build an impact attenuator out of foam for the first time ever. The companys aluminum honeycomb core is an ideal energy absorber. Evaluating impact attenuator performance for a formula. The impact attenuator is a safety component which is used to reduce the effects of frontal crash on driver, which can cause injuries. This is mounted on front bulkhead of racecar as most intensive load develops in head on collision. The system also utilizes low deflection to dissipate energy during an impact which requires minimal maintenance for resettingcreating a safer environment for road authorities and motorists alike.
The fsae rules require the impact attenuator have minimum dimensions of 200 mm by 200 mm by 100 mm depth by width by height, respectively. Table 1 and table 2 give us the respective material composition and. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Design and optimization of an fsae frame, suspension, and. Vehicle collision also known as crash or vehicle accident is a dynamic phenomenon and occurs when a vehicle. People often forget that your impact attenuator report actually contributes quite a significant amount to your design. Design and development of impact attenuator for racecar. Design and optimization of an fsae frame, suspension, and business portfolio submitted to the faculty of worcester polytechnic institute in partial fulfillment of the requirements for this. Chapter 1620 impact attenuator systems wsdot design manual m 2201. Ive read on the fsae forums that, if a team uses the standard impact attenuator, they dont need to send a data report. If you chose to employ the standard attenuator design, then testing is not required and there is no need to submit test data specific to your car. Mounting holes shown are for reference only attachment is up to the team to determine. Main goal of design team was to design an impact attenuator.
This article describes the design process of the impact attenuator with lightweight materials to satisfy the required weight reduction targets for formula sae racing car. The result of analysis shown that the sheet metal shell was creating problems in deformation. Simulation in abaqus of the impact attenuator for fsae. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product. Design, manufacture and testing of an impact attenuator. Aluminum honeycomb is a lightweight material with high strength and strong capacity of energy absorption.
Design and development of impact attenuator for racecar safety. Fsae impact attenuator 3d cad model library grabcad. Our test results indicated that the specimen satisfied the requirements of b3. The highvisibility design helps motorists navigate tight curves and redirects motorists back to the roadway in the event of an impact. Fsae impact attenuator worcester polytechnic institute. Attenuator absorbs the kinetic energy of the collision. By using soda can the price can be kept to a minimum since the most that will be needed to place on the frontbulk head will be 40 cans at 50 cents a piece. All the vehicles need to be equipped with a safety device because for safety of the driver and passenger. The first design has been finished this is the soda can impact attenuator. Geometry of the model this work is based on the analysis and improvement of the design of the impact attenuator and after on the design and improvement of the behavior of the links of the energy absorbing structure to the car body. Impact attenuator, formula sae, quasistatic testing.
Acceptable systems cannot be eliminated without documented justification as to why they should not be used. Dow impaxx 700 energy absorbing foam high speed video nothing happens until about 58 seconds in. The impact attenuator form must still be submitted as is proof your design matches the standard design. The behavior of an impact attenuator for formula sae racecar has been described with detailed material selection, design methodology and physical testing procedure. This current project is carried out at philadelphia university and describes the work associated with the design, build, and test a formula student racing car in order to compete at formula student. Design and fabrication of impact attenuator for formula. The fsae rules require the impact attenuator have minimum dimensions of 200 mm by 200. The design of a formula student front impact attenuator. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Bsci energy impact systems is not affiliated with sae international or the formula sae rules committee. Impact attenuator nose cone designing for formula student. Formula student impact attenuators, then the next step was the requirement analysis in order to set the goals for the design process from the aspect of the team and the car, while the formula student rules had to be met.
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