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