Study on Coach interior fittings of ICF and LHB coaches

This presentation involves about various types of coaches used in indian railways. It also includes the comparison between ICF and LHB coaches and safety features for customers provided in it. Also, includes the modifications to be provided in those coaches on future.

1. A Mini Project seminar on STUDY ON COACH INTERIOR FITTINGS OF ICF AND LHB COACHES Presented By M. RAKESH KUMAR 15B61A0350 Under the Guidance of Mr. B. RAVI PRAKASH Assistant Professor Department of Mechanical Engineering Nalla Malla Reddy Engineering College

2. CONTENTS Role of Carriage Work Shop ICF Coaches LHB Coaches and its Features Limitations & Benefits of ICF over LHB Coaches Use of Stainless Steel in LHB coaches Doors and Interior Fittings Injury free Features Conclusion

3. ROLE OF CARRIAGE WORK SHOP Carriage workshop is actively engaged in the development of new designs and upgradation of the existing designs of passenger coaches and its sub-systems. The main activities of the carriage workshop are: Development of new advanced materials for coach interiors. Development of key drawings and specifications of new designs of coaching stock. Enhancing fire safety of trains. Validation of design by tests and trials along with production units. The computer wing undertakes high end design activities like finite element analysis, crash analysis etc.

4. ICF COACHES Integral Coach Factory (ICF) coaches  are conventional passenger coaches used on the majority of main-line trains in India.  The design concept of the ICF coach stipulates that the roof, side wall, end wall and the under frame are joined together by welding, to form a fully integral coach shell. ICF coach shell is made of steel channels is made up of steel channel frames of thin sections except the seats and luggage bunks which are made up of wooden members. The weight of coach shell is reduced due to less use of wooden members. Anti-corrosive Corten steel (IRSM 41) is used for body fabrication purpose .

5. LHB COACHES LHB(Linke Hofmann Busch) coach is light weight construction made from low corrosive stainless steel. The weight of the coach is about 10 percent less as compared to the conventional coach resulting into lower haulage cost. Roof structure, side wall and end wall are made of ferritic stainless steel. The operating speed is 160 kmph and can be enhanced to 200 kmph.

6. FEATURES OF LHB COACH Corrosion free coach. Extensive use of stainless steel and surface protection measures. Higher carrying capacity. Longer by 2.2 meters than conventional coach. Light weight coach. 10% lesser weight per meter length lesser than conventional coach. Higher passenger comfort. Better acoustic and vibration measures. Super insulation. Damping measures.

7. LIMITATIONS & BENEFITS OF ICF OVER LHB COACHES LIMITATIONS This type of coaches having limitations in terms of Speed potential. Heavy corrosion. Poor riding comfort. Wearing of parts in the under gear. BENEFITS Higher carrying capacity. Low corrosion. Low Maintenance. The weight of LHB coach is lesser as compared to ICF design coaches. Better passenger comfort .

8. USE OF STAINLESS STEEL IN LHB COACH Carbon steel. Weather resistant Corten steel. Ferritic stain less steel. Austenitic stain less steel ( Cr 18-30%, Ni 6-20%, Low carbon).

9. DOORS AND INTERIOR FITTINGS DOORS The various kinds of doors used in LHB coaches are: Entrance doors Saloon doors End wall doors Pantry doors Lavatory doors Switch board doors INTERIOR FITTINGS Sealed window glass unit. Roller blinds. Luggage racks. LUGGAGE RACKS ROLLER BLINDS SEALED WINDOW

10. INJURY FREE FEATURES SAFETY FEATURES Mirror frame corners rounded off. Seats and berths corners rounded off. Fans protective cage flat ribs changed to round section ribs to avoid head injury. Luggage hooks made out of wire rope. Bottle holders changed from steel ones to nylon ones. SUGGESTIONS AND IMPROVEMENTS Basic cleanliness should be maintained in the coaches. Solar Panels should be installed on the top of the roof. Plumbing system should be improved. Installation of Fire extinguishers in the coaches. More number of emergency windows should be provided. Automatic opening and closing of doors should be installed in Indian Railways.

11. CONCLUSION ICF coaches have been serving the railways and proved themselves. Due to advancements in technologies and higher aspirations of travelling public for speed, safety and comfort, IR has adopted LHB design and now is all set to continue with this design in all its coach production units. Both the coaches have numerous safety features both in terms of exterior as well as coach interiors. The advancement in materials, processes and technologies have been adopted in LHB design coaches as well as retrofitted in ICF design coaches to the extent possible.