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Author : Jean-Claude Tatinclaux
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Model Tests on Two Models of WTGB 140-foot Icebreaker written by Jean-Claude Tatinclaux and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (17 download)
Download or read book Model Tests on Two Models of WTGB 140-foot Icebreaker written by and published by . This book was released on 1984 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of resistance tests in level ice and broken ice channels are presented for two models of the WTGB 140-ft icebreaker at scales of 1:10 and 1:24, respectively. No scale effect on the resistance in level ice could be detected between the two models. From the test results an empirical predictor equation for the full scale ice resistance is derived. Predicted resistance is compared against, and found to be 25 to 40% larger than, available full-scale values estimated from thrust measurements during full-scale trials of the Great Lakes icebreaker Katmai Bay.
Author : J. C. Tatinclaux
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (228 download)
Download or read book Ice Resistance Tests on Two Models of the WTGB Icebreaker written by J. C. Tatinclaux and published by . This book was released on 1983 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the particular full-scale conditions modelled in the tests, the dimensionless level ice resistance obtained with the two models of the 140-foot WTGB was essentially independent of the model scale. The fact that no scale effects were identified in the present tests can be interpreted in two ways: one is that icebreakers of size and operating conditions in ice similar to those of the WTGB can be confidently model tested at a scale of at least 1:24. The second interpretation is that model tests of icebreakers may be conducted in model ice 2 cm thick or thicker and/or with a bending strength of 30 kPa or more, since these values were the test conditions for the smaller WTGB model; these tests conditions would then specify a limiting model scale so that they correspond to the desired operating conditions of an icebreaker under design. By conducting model tests not only in level ice but also through broken ice channels, it was possible to separate the level ice resistance into two main components. According to this analysis, it was shown that the ice-breaking component is primarily a function of the Cauchy number but also the Froude number, especially at speed low enough for the ship to experience significant pitching and heaving motions when riding on the level ice and falling back as the ice sheet fails.
Author :
Publisher :
ISBN 13 :
Total Pages : 588 pages
Book Rating : 4.:/5 (319 download)
Download or read book CRREL Report written by and published by . This book was released on 1988 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jean-Claude Tatinclaux
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (319 download)
Download or read book Propulsion Tests in Level Ice on a Model of a 140-ft WTGB Icebreaker written by Jean-Claude Tatinclaux and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cold Regions Research and Engineering Laboratory (U.S.)
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.3/5 (91 download)
Download or read book Technical Report written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1950 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.3/5 (243 download)
Download or read book CRREL Benchnotes written by and published by . This book was released on 1976 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jean-Claude Tatinclaux
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (359 download)
Download or read book Ship Model Testing in Level Ice written by Jean-Claude Tatinclaux and published by . This book was released on 1988 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cold Regions Research and Engineering Laboratory (U.S.)
Publisher :
ISBN 13 :
Total Pages : 218 pages
Book Rating : 4.3/5 (91 download)
Download or read book USA CRREL Benchnotes written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1983 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. J. Lecourt
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (227 download)
Download or read book Icebreaking Model Tests of the 140-Foot WYTM. written by E. J. Lecourt and published by . This book was released on 1975 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Icebreaking model tests were conducted with models of the 140-foot WYTM which has been recently designed by the Coast Guard Naval Engineering Division. The WYTM is an icebreaking tugboat which will replace the aging 110-foot tugs on the Great Lakes and on the East Coast. The objectives of this model test program were: (1) To determine the icebreaking resistance of the WYTM as a function of velocity in uniform ice 1, 1.5, 2, and 2.5 feet thick; (2) To determine the effect of hull-ice friction on resistance by testing models with high and low coefficients of friction; and (3) To confirm the validity of dual model testing by towing two models side-by-side and comparing the measured resistance with single model test results. To achieve these objectives, a series of tests was conducted in the Arctic Ice Model Basin during May 1975. Using test data, an equation was determined to predict full-scale resistance of the tug in ice.
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ISBN 13 :
Total Pages : 1252 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1984 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Ettema
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.3/5 (121 download)
Download or read book Model Tests on Ice-rubble Size and Ship Resistance in Ice Rubble written by R. Ettema and published by . This book was released on 1985 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jean-Claude Tatinclaux
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (121 download)
Download or read book Propulsion Tests in Level Ice on a Model of a 140-ft WTGB Icebreaker written by Jean-Claude Tatinclaux and published by . This book was released on 1985 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of propulsion tests in level ice on a model of the WTGB 140-ft. Great Lakes icebreaker are presented and compared to available full-scale data. In spite of the difficulties in exactly modeling full-scale conditions, the predictions based on the model test results of the ship performance compared reasonably well to those measured during full-scale trials. Several possible sources of errors are identified. In particular, duplication at the model scale of the ship hull's ice friction coefficient is considered to be critical in determining the ice resistance and the corresponding propulsion characteristics, namely propeller speed, thrust and torque. Keywords: Coast Guard ships; Ship models; Icebreakers; and Model tests.
Author : United States. Defense Logistics Studies Information Exchange
Publisher :
ISBN 13 :
Total Pages : 1086 pages
Book Rating : 4.:/5 (319 download)
Download or read book Annual Department of Defense Bibliography of Logistics Studies and Related Documents written by United States. Defense Logistics Studies Information Exchange and published by . This book was released on 1985 with total page 1086 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Carlton
Publisher : Butterworth-Heinemann
ISBN 13 : 0081003749
Total Pages : 612 pages
Book Rating : 4.0/5 (81 download)
Download or read book Marine Propellers and Propulsion written by John Carlton and published by Butterworth-Heinemann. This book was released on 2018-11-30 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Propellers and Propulsion, Fourth Edition, offers comprehensive, cutting edge coverage to equip marine engineers, naval architects or anyone involved in propulsion and hydrodynamics with essential job knowledge. Propulsion technology is a complex, multidisciplinary topic with design, construction, operational and research implications. Drawing on experience from a long and varied career in consulting, research, design and technical investigation, John Carlton examines hydrodynamic theory, materials and mechanical considerations, and design, operation and performance. Connecting essential theory to practical problems in design, analysis and operational efficiency, the book is an invaluable resource, packed with hard-won insights, detailed specifications and data. - Features comprehensive coverage of marine propellers, fully updated and revised, with new chapters on propulsion in ice and high speed propellers - Includes enhanced content on full-scale trials, propeller materials, propeller blade vibration, operational problems and much more - Synthesizes otherwise disparate material on the theory and practice of propulsion technology from the past 40 years' development, including the latest developments in improving efficiency - Written by a leading expert on propeller technology, essential for students, marine engineers and naval architects involved in propulsion and hydrodynamics
Author : Various
Publisher :
ISBN 13 : 9780939773329
Total Pages : 456 pages
Book Rating : 4.7/5 (733 download)
Download or read book Society of Naval Architects and Marine Engineers written by Various and published by . This book was released on 2002-10 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
