International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 01 | Jan 2024
p-ISSN: 2395-0072
www.irjet.net
Holistic Approach For Lightweight Automotive Exhaust System Design Hiren Sonaiya1, Shashwat Yadu2, Swapnil Shelke3 1Hiren Sonaiya, Project Manager, Tata Technologies, ERC, Chassis, Tata Motors
2Shashwat Yadu, Sr. Technical lead, Tata Technologies, ERC, Chassis, Tata Motors 3Swapnil Shelke, Team lead, Tata Technologies, ERC, Chassis, Tata Motors
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Value is the most cost effective way to reliably accomplish a function that will meet the user’s needs, desires and expectations [3]. It should be kept in mind that increasing the value of the product/services doesn’t necessarily mean increasing the cost of the product. Value can be increased by increasing the benefits/worth and reducing the resources etc. Value engineering is targeted to identify and capture the low percentage of the factors in any product that affects the greatest percentage of the cost. Value engineering does not take any decisions whether this proposal is ok or not, it just Provoke/tries to get people to think that there are different/ equivalent ways to perform the work. It attempts to minimize the design life cycle time. It’s an exercise or technique which anybody can apply in a proper defined design format under the guidance of VE specialist. During World War II many industries were faced problem of material shortage, during such critical situation efforts were made by industry people to use different techniques in order to retain the function of the product by either providing the substitute to the existing material or changing the product design keeping the product performance same/improved. Further, during 1947 based upon different approaches step by step system was developed and named as” Value Analysis”. In 1959 the Society of American Value Engineers (SAVE) was incorporated in Washington, D.C. for connecting the practitioners and enabling the growth of the profession. In 1977 The Indian Value Engineering Society was formed. During this period different small growing American industries have adopted VE techniques to improve their product performance, profit margins and also for enhancing their market competitive position.
Abstract - The automotive industry is continually evolving
to meet increasingly stringent regulatory standards and consumer demands for improved efficiency and performance. As a result, there is a growing emphasis on developing lightweight exhaust systems that contribute to enhanced fuel economy, reduced emissions, and optimized vehicle dynamics. This abstract presents an overview of the latest trends and advancements in the design of lightweight automotive exhaust systems. Key Words: Automotive, Exhaust System, Light weight, VAVE.
1. INTRODUCTION The automotive industry has undergone a transformative shift in recent years, driven by a confluence of factors such as tightening emission regulations, increasing consumer demand for fuel efficiency, and advancements in materials and manufacturing technologies. As a result, automotive engineers and designers are facing the intricate challenge of developing innovative solutions that not only meet these demanding requirements but also enhance overall vehicle performance and driving experience. Value Engineering (VE) is a sequential and disciplined approach to evaluate the worth or usefulness of a product for the intended customer or consumers. It targets on desired functions of Product, process, service and system there by maintaining performance, aesthetics, optimum lifecycle cost, quality reliability, and safety intact. It is used when the process is applied to new product development while The Value Analysis (VA) is used when the value process is applied to existing products [1]. The Value Engineering has two dimensions worth and cost. In Indian automotive industries Value Engineering approach is not fully utilized. It’s most effective approach available to identify and eliminate unnecessary costs. Its application to product design and development, specifications and practices is less well known, its effectiveness in these areas have been proven [2]. VE is a creative thinking which is applicable for exploring best alternative ways for carrying out the various factions at the optimized cost. A product or service is generally considered to have good value if that product or services has appropriate performance and cost.
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We can reduce the product cost by localization of imported parts, resourcing from a different supplier, design changes. value analysis, supplier negotiations, supply chain cost review, benchmarking, competitive evaluation, alternate Manufacturing process & re-evaluate customer needs. M/s Tata Technologies suggest approach to achieve light weight exhaust system and consideration to be taken while design exhaust system.
2. Exhaust System Exhaust system design is an Art, which comprises of many child parts. Exhaust System require balancing of back pressure, weight and cost targets. The requirements for
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