Design and Fabrication of Automatic Brake in Vehicle

2018 ◽  
Vol 8 (3) ◽  
Author(s):  
Vaibhav S. Devadkar ◽  
Vinayak V. Deshpande ◽  
Omkar M. Dhamale ◽  
Bhaskar V. Erande ◽  
Rohit R. Patil
Keyword(s):  
Power Loss ◽  
Gear Wheel ◽  
Sensor Selection ◽  
Project Work ◽  
Sensor Interface ◽  
Braking System ◽  
Hill Station ◽  
Two Phases ◽  
The Hill ◽  
Design And Construction

In this project work the design and construction of a model of automatic braking system for vehicles in hill station is to be developed. The mechanism has been developed to stop the vehicle from rolling back word when the vehicle is moving in the hill roads. This construction made of two phases in a first deigns of ratchet and pawl mechanism, frame, shaft, etc. is done and in second sensor selection and interference is done. Ratchet and pawl mechanism has been fabricated and assembly with sensor interface is tested. The proposed mechanism is to reverse break using ratchet gear. By reverse locking the differential is disengaged from the axle. Thus the power is directly transmitted to the axle and hence to the wheels. This will considerably reduce the power loss in some occasions when unwanted loss is happening due to the transmission if power from the shaft to the ratchet gear and then to the axle and hence to the wheels. So in mechanism the unwanted power loss in the due course of transmission through the gear wheel is reduced.

scholarly journals Leisure, economy and colonial urbanism: Darjeeling, 1835–1930

Urban History ◽  
2013 ◽  
Vol 40 (3) ◽  
pp. 442-461 ◽  
Author(s):  
NANDINI BHATTACHARYA
Keyword(s):  
Unique Form ◽  
Functional Elements ◽  
Colonial India ◽  
Hill Station ◽  
Constant Tension ◽  
Colonial Economy ◽  
Colonial Urbanism ◽  
The Hill

ABSTRACT:This article posits that the hill station of Darjeeling was a unique form of colonial urbanism. It shifts historiographical interest from major urban centres in colonial India (such as Bombay or Calcutta) and instead attempts a greater understanding of smaller urban centres. In the process, it also interrogates the category of hill stations, which have been understood as exotic and scenic sites rather than as towns that were integral to the colonial economy. In arguing that hill stations, particularly Darjeeling, were not merely the scenic and healthy ‘other’ of the clamorous, dirty and diseased plains of India, it refutes suggestions that the ‘despoiling’ or overcrowding of Darjeeling was incremental to the purposes of its establishment. Instead, it suggests that Darjeeling was part of the colonial mainstream; its urbanization and inclusion into the greater colonial economy was effected from the time of its establishment. Therefore, a constant tension between its exotic and its functional elements persisted throughout.

IMPLICATIONS OF TECHNOLOGY TRANSFER IN THE DESIGN AND CONSTRUCTION OF LOAD-BEARING MASONRY BUILDINGS

2015 ◽  
Vol 77 (5) ◽  
Author(s):  
C.S. Abdullah ◽  
A.Y. Bahaudin ◽  
M.N. M. Nawi ◽  
N. H. Baluch ◽  
A.M. Kamaruddeen ◽  
...  
Keyword(s):  
Technology Transfer ◽  
Value Added ◽  
Value Engineering ◽  
Load Bearing ◽  
Track Record ◽  
Score Card ◽  
Before And After ◽  
Local Construction ◽  
Two Phases ◽  
Design And Construction

Load-bearing or structural masonry is a method of construction where the elements of a structure are built using masonry (bricks or blocks). Due to its technological and economic advantages, in western countries the system is widely used particularly for residential and low-rise buildings. Despite the advantages and excellent track record overseas, the system has not found its avenue in the local construction scene. Not many new buildings have been built using the system. Previous studies revealed that engineers, architects, developers, and builders lacked knowledge and experience on the design and construction using the system. A programme has been formulated for a consulting firm’s staff and their business partners to transfer the state-of-the-art knowledge on the design, detailing, costing, and construction of structures using load-bearing masonry. Additionally, value added topics on supply chain, value engineering, and strategic planning were also included. The programme involved two phases: (i) a series of seminars and workshops covering a duration of 6 months and, (ii) continuous site supervision (monitoring) for another 6 months. An auditing scheme to measure the company’s performance before and after the programme using the balance score-card technique is under formulation. The technology transfer programme has been completed covering 9 modules whereby the company managed to save further on profits by utilising value engineering concepts in its relevant projects.

scholarly journals An extended distribution record of Western Ghats species Litsea oleoides (Meissn.) Hook.f. (Lauraceae) from Matheran, Maharashtra, India

2018 ◽  
Vol 10 (10) ◽  
pp. 12434-12438
Author(s):  
Radha Veach ◽  
Gurumurthi Hegde
Keyword(s):  
Endemic Species ◽  
Western Ghats ◽  
South India ◽  
Critical Examination ◽  
Evergreen Forests ◽  
Hill Station ◽  
The Hill ◽  
Distribution Record

In the course of floristic explorations in the hill station of Matheran of Maharashtra, authors collected an interesting specimen of a Litsea. After critical examination and comparing specimens with all available collections in various herbaria including Kew, the tree was identified as Litsea oleoides (Meissn.) Hook.f., an endemic  species of wet evergreen forests in South India, hitherto not reported from Maharashtra. Same is reported here with notes on its distribution and phenology.

scholarly journals An Empirical Analysis of Search in GSAT

1993 ◽  
Vol 1 ◽  
pp. 47-59 ◽  
Author(s):  
I. P. Gent ◽  
T. Walsh
Keyword(s):  
Computer Experiments ◽  
Extensive Study ◽  
Hill Climbing ◽  
Average Score ◽  
Approximation Procedure ◽  
Problem Size ◽  
Simple Scaling ◽  
The Mean ◽  
Two Phases ◽  
The Hill

We describe an extensive study of search in GSAT, an approximation procedure for propositional satisfiability. GSAT performs greedy hill-climbing on the number of satisfied clauses in a truth assignment. Our experiments provide a more complete picture of GSAT's search than previous accounts. We describe in detail the two phases of search: rapid hill-climbing followed by a long plateau search. We demonstrate that when applied to randomly generated 3SAT problems, there is a very simple scaling with problem size for both the mean number of satisfied clauses and the mean branching rate. Our results allow us to make detailed numerical conjectures about the length of the hill-climbing phase, the average gradient of this phase, and to conjecture that both the average score and average branching rate decay exponentially during plateau search. We end by showing how these results can be used to direct future theoretical analysis. This work provides a case study of how computer experiments can be used to improve understanding of the theoretical properties of algorithms.

scholarly journals Improving Performance of the Braking Process, and Analysis Torque-Speed Characteristics of the Induction Motor

2018 ◽  
Vol 8 (6) ◽  
pp. 3585-3591 ◽  
Author(s):  
O. M. Al-Barbarawi
Keyword(s):  
Induction Motor ◽  
High Resistance ◽  
Dynamic Process ◽  
The Other ◽  
Process Time ◽  
Electromagnetic Brake ◽  
Braking System ◽  
Three Phase ◽  
Two Phases ◽  
Braking Process

This study aims to investigate, analyze, discuss and illustrate an effective and reliable fast braking system used in a three-phase induction motor by combining two or more different conventional braking methods such as dynamic-plugging and electromagnetic-plugging. The plugging process is implemented by disconnecting one of the stator phases and connecting it with an electromagnetic brake while interchanging the other two phases. The dynamic process is executed by inserting high resistance in the rotor circuit of the motor. The performance of the torque-speed characteristics of the induction motor will be studied and analyzed through the dynamic process. Mathematical models have been developed and simulated. Results show that the braking process time is greatly reduced.

Natural Hazard and Risk Management for South American Pipelines

2002 ◽  
Author(s):  
Michael Porter ◽  
K. Wayne Savigny
Keyword(s):  
Risk Management ◽  
Volcanic Eruption ◽  
Natural Hazard ◽  
Standard Of Care ◽  
Hazard Identification ◽  
South American ◽  
Hazard Exposure ◽  
Hazard And Risk ◽  
Two Phases ◽  
Design And Construction

Hazard identification and rating involve the first two of a four-phase natural hazard and risk management (NHRM) system that is being developed to manage natural hazards along linear facilities. In Canada, completing these first two phases is generally straightforward. Baseline data including air photos, geology and topographic maps are readily available; the number and types of hazard exposure are often limited for any given facility; and, the standard of care expected during design and construction is understood and practiced. The NHRM methodology is also being applied on South American pipelines. Greater flexibility is required in obtaining necessary input data. Helicopter and vehicle access are often more limited, and greater reliance must be placed on airphoto interpretation and literature review. Processes of rating hazard exposure are needed for less familiar hazard types, including tsunami, volcanic eruption, and tectonic ground rupture. South American construction and design practices must be accounted for in the rating methodology. Using examples from recently constructed trans Andean pipelines, this paper outlines application of the NHRM system to linear facilities located in areas of diverse hazard exposure and less stringent design and construction practices. Under the broad headings of ‘geotechnical’ and ‘hydrotechnical’ hazards, a methodology for rating eleven different hazard types is outlined. On the geotechnical side, these include tsunami, volcanic eruption, tectonic ground rupture, landslides and debris flows originating off-rights-of-way, and mass movements originating on rights-of-way. Hydrotechnical hazards include scour, degradation, bank erosion, encroachment, and channel abandonment/avulsion.

The Meteoric Stones of Baroti, Punjab, India, and Wittekrantz, South Africa

1913 ◽  
Vol 17 (78) ◽  
pp. 22-32 ◽  
Author(s):  
G. T. Prior
Keyword(s):  
South Africa ◽  
Natural History ◽  
British Museum ◽  
Natural History Society ◽  
Hill Station ◽  
The Hill ◽  
The Village ◽  
Bombay Natural History Society

In 1912 Mr. N. B. Kinnear, Curator of the Bombay Natural History Society's Museum, brought to me at the British Museum, for identification, a specimen of a supposed meteorite which had been sent to the Bombay Natural History Society by the late General W. Osborn.General Osborn stated that, in November, 1910, on arrival at his usual winter quarters in the hill station of Kotheir in the Punjab, he visited his friend, the Rajah of Bilaspur, who presented him with a fragment, weighing about a quarter of a pound, of a meteorite which had fallen in daylight at the village of Baroti, in the Bilaspur (Simla) district, one day during the month of September, 1910.

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