Download or read book Analysis of Wear Data for the 155mm Xm198 written by Richard G. Hasenbein and published by . This book was released on 1975 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This test attempts to determine which characteristics of tube or projectile cause or influence muzzle wear, particularly for the 155mm XM198 howitzer family of components (XM199 cannon, XM549 projectile, XM123 propelling charge). The test was limited to an evaluation of conditions which either are known or are suspected to have an impact on muzzle wear. The assumption was made that the extent of shell body engraving is directly proportional to the extent of muzzle wear. No single variable under observation was found which controls the presence of body engraving; it was concluded that a number of causes, perhaps in specific combinations, produce this effect. Several parameters were found, however, which increase either the incidence or the extent of body engraving including coppering, projectile seating as influenced by the forcing cone, dynamic instability, projectile imbalance, and escape of propellant gases ahead of the rotating band. Based solely on the results of this test, a hypothesis is proposed concerning the mechanism of muzzle wear.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1975 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1975-10-17 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1975 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Wear Data from 105MM M68 Gun Tubes in Field Service written by and published by . This book was released on 1975 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was performed to determine mean wear profiles of gun tubes in field service. After determining these profiles, a method of interrelating wear at various locations within the gun tube was developed. This will permit a logical reassessment of tube condemnation criteria, if this is found to be necessary in current testing.

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ballistics written by and published by . This book was released on 1979 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Test Planning Collection and Analysis of Pressure Data Resulting from Army Weapon Systems Volume II Modeling of Far Field Data written by and published by . This book was released on 1980 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: JAYCOR determined that much of the pressure trace detail from the M- 198 155mm howitzer with the M203 charge could be understood in terms of gas dynamics and the gun and ground geometry. The objective was to determine the feasibility of stimulating the far field muzzle blast and to interpret the field data already taken. A lung model was also developed which gives a way of comparing various pressure traces in terms of the internal dynamics. The agreement seen between measured and predicted pressure traces is repeated in the lung response. (Author).

Download or read book Army Research and Development written by and published by . This book was released on 1972 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1979 JANNAF Propulsion Meeting written by and published by . This book was released on 1979 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army RD A written by and published by . This book was released on 1972 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army RD A Bulletin written by and published by . This book was released on 1972 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Artillery Support written by United States. Marine Corps and published by . This book was released on 1981 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of Audiovisual Productions written by United States. Assistant Secretary of Defense (Public Affairs) and published by . This book was released on 1984 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vibration of solids and structures under moving loads written by L. Frýba and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport engineering structures are subjected to loads that vary in both time and space. In general mechanics parlance such loads are called moving loads. It is the aim of the book to analyze the effects of this type of load on various elements, components, structures and media of engineering me chanics. In recent years all branches of transport have experienced great advances characterized by increasingly higher speeds and weights of vehicles. As a result, structures and media over or in which the vehicles move have been subjected to vibrations and dynamic stresses far larger than ever before. The author has studied vibrations of elastic and inelastic bodies and structures under the action of moving loads for many years. In the course of his career he has published a number of papers dealing with various aspects of the problem. On the strength of his studies he has arrived at the conclusion that the topic has so grown in scope and importance as to merit a comprehensive treatment. The book is the outcome of his attempt to do so in a single monograph.