NOPR Collection:http://nopr.niscpr.res.in/handle/123456789/620052026-10-09T18:11:33Z2026-10-09T18:11:33ZModelling and Simulation of Crankcase Cover Manufacturing in the Automobile IndustryChawla, SumitSingari, Ranganath Mhttp://nopr.niscpr.res.in/handle/123456789/620142023-06-06T10:46:39Z2023-06-01T00:00:00ZTitle: Modelling and Simulation of Crankcase Cover Manufacturing in the Automobile Industry
Authors: Chawla, Sumit; Singari, Ranganath M
Abstract: The simulation creates the virtual production model which is exactly like the real environment, and it provides future
insights before laying down the actual production plant layout. With the help of simulation, we can simulate the complex
and costly manufacturing system without investing money physically and check the system’s real-life behavior. In this
study, for the first time, the modelling and simulation of two-wheeler crankcase cover manufacturing are done with the help
of Flexsim. This study deals with the development of a simulation model for crankcase cover manufacturing systems in the
automobile industry. Flexsim simulation tool is used as an optimization tool for analyzing the effect of varying the number
of operators and process stations on system performance using various scenarios. The results indicate that scenario 2 is best
for crankcase cover manufacturing which reduces the overall idle time of all process stations and optimizes the number of
Die-Casting Machines (DCM) and Vertical Milling Center (VMC). These results are useful for all industries for simulating
their process or product layout.
Page(s): 597-6022023-06-01T00:00:00ZAn Investigation to Find the Effects on Air Foil Bearing by the Variation of Foil’s Structural ParametersChakraborty, BivashBiswas, NabarunChakraborti, Prasunhttp://nopr.niscpr.res.in/handle/123456789/620132023-06-06T10:44:42Z2023-06-01T00:00:00ZTitle: An Investigation to Find the Effects on Air Foil Bearing by the Variation of Foil’s Structural Parameters
Authors: Chakraborty, Bivash; Biswas, Nabarun; Chakraborti, Prasun
Abstract: The newest advancement in the realm of bearing technology, Air Foil Bearings (AFB) is a marvel that allows for operation
at both incredibly low and high temperatures without fail. Their minimalistic design eliminates the requirement for lubrication
and sealing systems, making them not only more efficient but also more eco-friendly. When it comes to speed, these bearings
give no quarter - they can handle even the most extreme of conditions with ease. Air foil bearings rely on the structural design
of top and bump foils to support and distribute pressure in the air film. To increase bearing capacity, these foils must be thick
enough to withstand greater force. It is crucial to explore how varying foil thickness and bump height-pitch ratios may affect the
performance of an air foil bearing. The researchers at the ANSYS Fluent lab set out to understand the dynamics of air foil
bearings. By adjusting the thickness of the top and bump foils, they were able to observe how stress, stiffness, and air film
clearance changed in relation to each other. Their results showed that even minor changes in foil thickness, bump height, and
bump pitch had a significant impact on bearing performance. With their discoveries, these engineers have unlocked a new
understanding of this complex technology - one that will help guide its continued development into the future. The thickness of
the foil may not confer much strength, but it certainly does wonders for reducing stress and maintaining load-bearing
capabilities. Its suppleness, however, cannot be denied – a boon for air foil bearings.
Page(s): 603-6082023-06-01T00:00:00ZSolar PV Transient Mitigation using Superimposed Sliding Mode-Perturb and Observe MPPT under Varying Irradiation ConditionsMohanty, AshutoshRout, Bidyadharhttp://nopr.niscpr.res.in/handle/123456789/620122023-06-06T10:42:45Z2023-06-01T00:00:00ZTitle: Solar PV Transient Mitigation using Superimposed Sliding Mode-Perturb and Observe MPPT under Varying Irradiation Conditions
Authors: Mohanty, Ashutosh; Rout, Bidyadhar
Abstract: Varying weather specifically temperature and irradiation have a significant impact on Solar Photo Voltaic (SPV) output
performance and efficiency. Both the output voltage and power are unstable due to the unwanted solar fuel variation.
Therefore, Maximum Power Point Tracking (MPPT) plays an important role in the case of SPV. Although different MPPT
techniques are imposed to mitigate the above-said issues, the Perturb and Observe (P&O) is unique in its operation and
simple to design. But when P&O comes under a sudden large variation of solar parameters, it fails to track and move away
from the Maximum Power Point (MPP). A sliding mode controller superimposed with conventional P&O known as
Superimposed Sliding Mode Controller-P&O (SISMC-PO) is proposed in this paper that improves the tracking accuracy and
tries to minimize the transient disturbance during the rapid change in irradiation. Input side capacitor current and error in
SPV voltage with reference voltage are taken as the input to the SMC whereas solar voltage and current are taken as the
input to the P&O MPPT. SISMC-PO produces highly efficient and robust control of the switching frequency with a suitable
step size that drives the switch of the DC-DC boost converter which is tested and verified by MATLAB/SIMULINK.
Page(s): 609-6152023-06-01T00:00:00ZQoS Improvement using Enhanced Manhattan Mobility Model on Proposed Ant Colony Optimization Technique in MANETsKour, SatveerUbhi, Jagpal SinghSingh, Manjithttp://nopr.niscpr.res.in/handle/123456789/620112023-06-06T10:40:46Z2023-06-01T00:00:00ZTitle: QoS Improvement using Enhanced Manhattan Mobility Model on Proposed Ant Colony Optimization Technique in MANETs
Authors: Kour, Satveer; Ubhi, Jagpal Singh; Singh, Manjit
Abstract: In the current Mobile Ad-hoc Network (MANET) route discovery procedure, traffic overflow and overhead may pose a
major challenge for a path finding between communicating nodes. Swarm intelligence technique has been applied for
various routing problems. We suggest an ant-based bottleneck routing method for MANET to identify weak links in the
chosen route for routing overhead and delay issues. During data exchange, it selects the route using a swarm based
technique called Ant Colony Optimization (ACO). Initially, we have created node movements by Enhanced Manhattan
Mobility Model (EMMM) and then a bottleneck value based ant colony optimization technique is applied. The
simulation results show the improvement over existing ACO technique in terms of mobility and pause time. The Quality of
Service (QoS) performance metrics showed improvement of 66% in drop rate, 141% in the packet delivery ratio, 42% in
packet overhead, 171% in throughput, and 34% in the average end-to-end delay for mobility experiment. There is an
improvement of 82% in drop rate, 108% in the packet delivery ratio, 45% in packet overhead, 171% in throughput, and 49%
in the average end-to-end delay for a pause time experiment.
Page(s): 616-6282023-06-01T00:00:00Z