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Patil, P. J.
- Phytochemical and Toxicological Evaluation of Acorus calamus and Argyreia speciosa Leaves Extract
Abstract Views :176 |
PDF Views:2
Authors
P. J. Patil
1,
V. R. Patil
2
Affiliations
1 Marathwada Mitra Mandal’s College of Pharmacy, Thergaon (Kalewadi), Pune-411 033, Maharashtra, IN
2 Tapi Valley Education Society's, Hon. Loksevak Madhukarrao Chaudhari College of Pharmacy, Faizpur Dist: Jalgaon-425 503, Maharashtra, IN
1 Marathwada Mitra Mandal’s College of Pharmacy, Thergaon (Kalewadi), Pune-411 033, Maharashtra, IN
2 Tapi Valley Education Society's, Hon. Loksevak Madhukarrao Chaudhari College of Pharmacy, Faizpur Dist: Jalgaon-425 503, Maharashtra, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 8, No 3 (2016), Pagination: 121-124Abstract
In present study Acorus calamus and Argyreia speciosa were collected, their authentications were performed. These two plants were extracted by three different solvents. Extracts of these plants were subjected to different phytochemical analysis. Acute toxicity studies of these plant extracts were performed to determine their safety. Phytochemical Investigation were carried out by performing various tests viz. test for detection of carbohydrate, alkaloid, proteins, volatile oils, flavonoids, saponins, phenols, resins, tannins, amino acid, steroids, triterpenoids, anthraquinones and coumarines. Acute oral toxicity was performed using OECD 420 guidelines. Groups of female rats are dosed in a stepwise procedure using the fixed doses of 5, 50, 300 and 2000 mg/kg. No toxic symptoms or mortality were observed in any animals, which lived up to 14 days after the administration of all extract of AC and AS upto the level of 2000 mg/kg body weight.Keywords
Acorus calamus, Argyreia speciosa, Phytochemical, Toxicological.
- Improvement of Overall Equipment Effectiveness (OEE) using TPM in Industries
Abstract Views :455 |
PDF Views:0
Authors
Affiliations
1 Tatyasaheb Kore Institute of Engineering and Technology, Warananagar, Kolhapur, Maharashtra, IN
1 Tatyasaheb Kore Institute of Engineering and Technology, Warananagar, Kolhapur, Maharashtra, IN
Source
Manufacturing Technology Today, Vol 20, No 5-6 (2021), Pagination: 3-14Abstract
Total Productive Maintenance has been proven to be a very effective tool for the improvement of productivity and efficiency of employees and equipments. From the TPM perspective reliability and availability are the ultimate goals. The way to accomplish the goals is through elimination of major losses. These losses are only due to mechanical nature and visualized by key figure OEE. In this paper, the study of OEE improvement in Printing Industries Ltd is discussed. During this study, The 11 CNC machines were considered for the first phase of TPM implementation. The study of the old setup of machine shop of the company was done to find out different drawbacks and barriers. It was observed that machine shop has less OEE, lack of self improvement of operator, strong resistance to change by operators, improper use of resources, and poor arrangement system of tools. It was decided to use TPM tools to eliminate the above problems and to improve the OEE. The TPM plan was executed by using different methodologies. Machine performance data were collected for 11 machines under consideration after TPM implementation. These data were used for comparison of utilization time, idle time, efficiency and OEE of the 11 machines before and after TPM activity.
During implementation of TPM various tools were used such as 5S, Autonomous maintenance, Preventive maintenance and Focus improvement (SMED). All methodologies contributed to increase utilization time and OEE of machines in different manners. The result of this work is increase in utilization time and decrease in idle time by 5% and 3% respectively as compare to old machine setup. Thus average OEE of 11 machines reaches to 72.56% which shows 3.26% increase than the previous year.
Keywords
Total Productive Maintenance (TPM), 5S, Autonomous Maintenance, Preventive Maintenance, Focus Improvement.References
- Chan, F. T. S., Lau, H. C. W., Ip, R. W. L., & Kong, S. (2005). Implementation of Total Productive Maintenance: A Case Study. International Journal of Production Economics, 95(1), 71-94. https://doi.org/10.1016/j.ijpe.2003.10.021.
- Eti, M. C., Ogaji, S. O. T., & Probert, S. D. (2006). Implementing Total Productive Maintenance in Nigerian Manufacturing Industries. Applied Energy, 83, 1163-1179.
- Fore, S., & Zure, L. (2010). Improvement of Overall Equipment Effectiveness through TPM. World Academy of Science, Engineering and Technology, 61, 2010.
- Gupta, S., Tewari, P. C., & Sharma, A. K. (1994). TPM Concept and Implementation Approach. International Journal of Operations and Production Management, 14 (7), 44-52.
- Lazim, H. M., Ramayah, T., & Ahmad, N. (2008). Total Productive Maintenance and Performance : A Malaysian SME Experience. International Review of Business Research Papers, 4(4), 237-250.
- Pomorski, T. R. (2004). Total Productive Maintenance (TPM) Concepts and Literature Review. Principal Consulting Engineer Brooks Automation, Inc.
- Roberts, J. (1997). Total Productive Maintenance. The Technology Interface, www.emeraldinsight.com
- Santos, J., Serrats, G., & Arcelus, M. (2001). Implementation of the OEE rate as a participative improvement tool. 48, San Sebastian, Spain.
- Seng, O. Y., Jantan, M & Ramayah, T. (2003). Implementing Total Productive Maintenance (TPM) in Malaysian Manufacturing Organization’, University Sains Malaysia: Productive Press.
- Singh, K. D. P. & Patha, A. K. (2009). Reduction of Losses in Oxygen Plant Through Total Productive Maintenance. ARISER, 5(2), 119-130.
- Sun, H., Yam, R. & Wai-Keung, N. (2003). The implementation and evaluation of Total Productive Maintenance(TPM) - an action case study in a Hong Kong manufacturing company. International Journal of Advanced Manufacturing Technology, 22, 224–228.
- Telsung M. T. (2007). Production Management. S. Chand Publication Ltd, Mumbai, Ed. 2.
- Real Time Centrifugal Stress Analysis of Flywheel Using 3D Photo Elasticity and FEA
Abstract Views :209 |
PDF Views:1
Authors
Affiliations
1 Tatyasaheb Kore Institute of Engineering & Technology, Warananagar, Kolhapur, Maharashtra, IN
1 Tatyasaheb Kore Institute of Engineering & Technology, Warananagar, Kolhapur, Maharashtra, IN
Source
Manufacturing Technology Today, Vol 20, No 7-8 (2021), Pagination: 9-15Abstract
The aim of this paper is to analyze the real time centrifugal stresses induced in the flywheel when it is subjected to high rotational speed. When flywheel is subjected to higher rotational speeds, centrifugal forces act on it. As a result of this centrifugal force, stresses are developed at the rim of flywheel. These centrifugal stresses developed may be responsible for the failure of the flywheel when the working stress value exceed the design stress value. In order to have a safe and reliable design of the flywheel, it is necessary to investigate the stresses developed in the flywheel when subjected to high rotational speeds. To evaluate these stresses, 3D photoelasticity method has been used as experimental method. This stress value was then scaled to the actual prototype i.e., flywheel. FEA analysis was done using ANSYS 19.0 workbench software. The result shows that the centrifugal stresses occur at the rim of the flywheel. The 3D photoelasticity technique gives clear knowledge of the stress patterns at the rim of the flywheel. Results obtained from various methods have been compared. There is a close agreement between FEA and experimental results. This study concludes that the true value of centrifugal stress is less than the theoretical one. The outcome of this work will help the designer to design a safe and reliable flywheel by using optimum parameters and prevent overdesign of flywheel.Keywords
3D Photoelasticity, Centrifugal Stress, Polariscope, Material Fringe Value, Scaling Model to Prototype.References
- Baby, T. A., Kurian, T., & Shibu, M. E. (2015). Stress Analysis on Flywheel. International Journal of Advanced Research in Education & Technology, 2(3), 107-110.
- Bedier, B., Naggar, E. L., & Kholeif, I, A. (2011). DiskRim Flywheel of Minimum Weight. Journal of American Science, 7(6), 146-149.
- Chaudhari, S.S., & Waghulde, K.B. (2016). Study of Simulation and Structural Analysis of Flywheel Used In 50 Ton Power Press. International Conference on Emerging Trends in Engineering and Management Research, 1165-1172.
- Chougule, A., & Tuljapure, S.B. (2017). Finite element Analysis of Web type flywheel made of composite material. International Journal of Engineering Trends and Technology, 46(3), 169-173.
- Kalaskar, P., Patil, H., Raut, N., Narwade, A. (2018). Design, Analysis and Optimization of Flywheel. Special Issue on International Journal on Theoretical and Applied Research in Mechanical Engineering, 7(1), 109-113.
- Lavakumar, M., & Srinivas, R. P. (2013). Design and Analysis of Light Weight Motor Vehicle Flywheel. International Journal of Computer Trends and Technology, 4(7), 2360-2365.
- Mudragadda, P., Seshaiah, T. (2014). Analysis of Flywheel Used in Petrol Engine Car. International Journal of Engineering Research & Technology, 3 (5), 1048-1052.
- Punde, A. P., & Gattani, G. K. (2013). Analysis of Flywheel. International Journal of Modern Engineering Research, 3(2), 1097-1099.
- Saha, S., Bose, A., Tejesh, G. S, & Srikanth, S.P. (2012). Computer Aided Design & Analysis on Flywheel for Greater Efficiency. International Journal of Advanced Engineering Research and Studies, 1(2), 299-301.
- Xu, C., & Jiang, D. (2017). Design and Structural Simulation Analysis of Flywheel Rotor. Advances in Engineering Research, 153, 118-122.