Souvenir Containing Abstracts - YMCA University of Science ...

National Conference on Trends and Advances in Mechanical Engineering
TAME-2012
OCT 19-20, 2012
OPTIMIZATION OF INVENTORY MODEL FOR DECAYING ITEM WITH VARIABLE
HOLDING COST AND POWER DEMAND
1 2 3
Ankit Prakash Tyagi , Rama Kant Pandey , Shivraj Singh
1
Dayanand Brijendra Swarup (PG) College, Dehradun, Uttarakhand, India
2
Department of mathematics, Dayanand Brijendra Swarup (PG) College, Dehradun, Uttarakhand, India
3
Department of mathematics, D.N. (PG) College, Meerut (UP), India
1 2 3
ankitprakashtyagi88@gmail.com rkpandey0055@gmail.com shivrajpundir@gmail.com
In inventory control phenomena, holding cost is an integral part of total cost of every inventory system. This is determined
from the investment in physical stocks and storage facilities for items during a cycle. In most of the inventory research
papers with power demand pattern, holding cost rate per unit time for perishable inventory is assumed as constant. However,
this is not necessarily the case when items in stock are decaying. In the present work, paying better attention on the holding
cost, we present a deteriorating inventory model in which the unit holding cost is based on the deterioration of the inventory
with the time the item is in stock. The deterioration is assumed Weibull distributive. The power pattern of demand is
considered in this paper. Shortages are allowed and partial backlogged. The partial backlogging rate is a continuous inverse
function of waiting time in purchasing the item during stock out period. By using classical optimization technique,
conditions for uniquely existence of global minimum value of the average total cost per unit time are discussed. Numerical
illustration and sensitivity analysis are presented.
Keywords: Inventory, Deterioration, Shortage, Weibull Distribution, Power demand, variable holding cost.
***
APPLICATION OF GRAPH THEORY: A REVIEW
1 2 3
Ravi Kalra , Sunil Kumar , Kamal Jangra
1
JCD college of Engineering, Sirsa, Haryana
2
Yadavindra College of Engineering, Guru Kashi Campus, Talwandi Sabo, Bathinda, Punjab
3
YMCA University of Science and Technology, Faridabad, Haryana
Email id: ravikalra24@gmail.com (Ravi); kamaljangra84@gmail.com (Kamal)
Graph theory is a systematic and logical approach that has been successfully implemented in various fields of engineering.
The main advantage of graph theory over other techniques is that it includes even qualitative factors along with quantitative
factors for modeling the process. This paper discusses the application of graph theory in non conventional machining
process. Wire electrical discharge machining process has been considered to illustrate the methodology. A numeric index is
evaluated which is a performance index for the system.
Keywords: Graph theory, manufacturing system, WEDM.
***
EVALUATION OF IDEAS FOR PANEL BODY ASSEMBLY BY DECISION MATRIX
1` 2
Narender Kumar and Vineet Jain
1
Department of Mechanical Engineering, Dronacharya College of Engineering FarukhNagar Guragaon
Email: narenderiitd@gmail.com
*Corresponding Author
2
Department of Mechanical Engineering, Deep institute of engineering and Technology, Gurgaon,
Email: vjdj2004@gmail.com
Evaluation phase aims at development of value alternatives which is accomplished by careful appraisal and creative
judgment to the ideas which were listed during creativity phase. During the process of development, we should ensure that
the product is not cheapened or degrade i.e. there is no reduction in product quality, performance, reliability, maintainability
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Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad