New M.Tech. Thesis Submitted from Industrial

IMPLEMENTATION OF MAYNARD OPERATION SEQUENCE TECHNIQUE IN AN ENGINE MANUFACTURING INDUSTRY- A CASE STUDY by Bipandeep Singh

Abstract

Maynard Operation Sequence Technique (MOST) is a predetermined motion time system that is used

primarily in industrial settings to calculate the standard time in which a worker should perform a task. This technique breaks down the work into small discrete elemental activities made up of various parameters and calculates the standard time for each activity from predetermined motion index data cards. MOST is a powerful analytical tool that helps increase productivity, improve methods and facilitate planning. ABC Company produces tractor engines of various powers. But demand of 54bhp engine is very high in market. The company can assemble 70 engines in one shift but demand of this particular engine is more than 78 engines. By implementing the MOST in the assembly shop the standard time for the activities is calculated to be 66.31 minutes whereas the actual existing average time is 71.37 minutes. After using pareto analysis for all the 128 elemental activities it was found that there are some activities which are consuming more time because of excessive work content. After reducing these activities, the time for assembly was further reduced down to 62.7 minutes. By achieving this standard time, 9030 man hours will be saved annually that will save Rs.9,03,000. By doing so, the production will increase from 70 to 75 engines. 

New M.Tech. Thesis Submitted from electronics

IMPROVING ENERGY EFFICIENCY OF MANETs USING PROTOCOL DRIVEN BY CPE by Shyna Kalra 

Abstract

There are constantly moving nodes in mobile ad-hoc network whereas in Wireless sensor network, the nodes are motionless. There are many issues that the mobile ad hoc network confronts because of constant topology changes. These issues are about packet loss, link breakage and so on, which are necessary to be considered for the enhancement of network services. There is another issue that also need to be considered is network’s lifetime. The network’s lifetime hangs on the remaining energy levels of the nodes. Therefore, in this case, the preservation of energy levels of mobile nodes can make the network to work for longer duration. In order to achieve energy efficiency, it is necessary to improve the transfer of data between two nodes i.e. source node and destination node. The main focus of this study is at optimizing the track from source to destination using the pheromone value of nodes during route reply phase. It can also be enhanced by using the coordinate based method while broadcasting the route request messages. Also in case to optimize performance of the network, the concept of EENCP has been taken into account so that energy of the nodes is also considered while making path from source to destination. The proposed scheme as well as existing schemes were implemented on NS2.35 and the throughput, energy consumption and routing overhead were used to analyse performance of the network. The proposed scheme has lead to energy consumption of 11 Joules whereas the existing scheme causes energy consumption of 12.5 Joules in the network. The lesser energy consumption in the proposed scheme shows an enhancement in lifetime of network. Similarly, better network must have higher values for throughput and the proposed scheme shows destination node received more amount of the data. The values of the throughput for the proposed scheme at 260 Kbps are higher than the existing scheme at 210 Kbps indicating better performance of the network. The values for the routing overhead for the proposed scheme is found to be 8.5 and for the existing scheme it is 18.5 approx. which indicates the establishment of better routing track between source and destination node. This is attributed to the consideration of the pheromone values concept derived from ant colony optimization to select the track between the front and end node to transmit the data. The ant colony concept optimizes the path in a better way than other traditional routing protocols which has been proved in our study also.

New M.Tech. Thesis Submitted from computer

Efficient Extraction of BIM Objects and Other Structural Elements by Mayur Jethwa

Abstract

Technology has changed the face of the world, with the advent of technology most of the manual works have been shifted towards autonomous processes. However, when these processes fail to interact often causes a bigger inconvenience. Therefore, lot of open standards has come into play to minimize these inconveniences. An IFC is an open standard that was created to address interoperability issues, therefore, popularity of an IFC ecosystem is rising by leaps and bounds, yet IFC fails to take into account human error or human ignorance, relationship that are not created during design is not reflected in an IFC file, to locate information manually is not a mundane task and often out of the scope of the validators resulting in safety hazards and compromised convenience. The very building that gives life, service, protection and happiness can take it back. Sources say that one of the top reasons for a building failure is human error. This error can be minimized if all structures are created by standards mentioned in national structure safety codes. To ensure that all the documented safety codes have been thoroughly verified it is necessary to perform this task using autonomous machine instead of a manual process. For all these reasons this thesis focuses on automated element extraction of structural entities, its children and their properties, so it can be further used by a structural validating software to ensure that a structure is made as per compliance of structural safety codes, and to verify that a structure is maintainable, appealing and convenient.

New M.Tech. Thesis Submitted from production

APPLICATION OF FAILURE MODE CRITICAL ANALYSIS IN CONCRETE MIX BATCHING PLANT USING MCDM METHODS by Lovelesh Seth 

Abstract

for the development of country construction industry plays a vital role in growth and development. Indian construction industries are required to make a world class vision for the forthcoming world class projects in India as well as in abroad. For production in construction industry concrete mix batching plant is considered as one of the most critical equipment which helps in practising or mixing the various concrete mix ingredients either by mass or by its volume collectively into the mixing unit in plant as so to get the desired quality concrete mix as per design. In construction industry batching plants are highly loaded with work in order to complete the set target. So there is a huge risk of failure of those machines as the machines are overloaded. So machines require proper and timely maintenance strategy so as to avoid sudden breakdown during its operation which may lead to not even the stoppage of that machine but may also lead to the stoppage of complete production which involves that machine. The research work is carried out considering a case study held in one of the most renowned construction company LARSEN and TOUBRO Limited at its project site at Six Lanning of Delhi Agra Road Project. The main aim of the research work carried out in the thesis was to allocate the objective weights to maintenance criterion. Shannon Entropy approach is utilized for calculating the criteria weights so as to find out the weight of criterion and these weights are used for maintenance criticality ranking which is generated by using three multi criteria decision making (MCDM) approaches(SAW, TOPSIS, VIKOR). Best maintenance strategy is developed considering twelve probable reasons of failure recognized, the most critical modes of failure according to TOPSIS, VIKOR and SAW rankings are Loosen blade bolts (D9), Mixer Shaft facial axial seal (D1), Solidification Time (D10), Load cell wiring (D12) respectively.