دانلود رایگان مقاله لاتین شکست چرخ بوت فرمان از سایت الزویر
عنوان فارسی مقاله:
مطالعه شکست یک چرخ بوت فرمان سرعت ترک خورده
عنوان انگلیسی مقاله:
Failure study of a cracked speed boat steering wheel
سال انتشار : 2015
برای دانلود رایگان مقاله شکست چرخ بوت فرمان اینجا کلیک نمایید.
مقدمه انگلیسی مقاله:
1. Introduction
Unfavorable service conditions coupled with material imperfections and manufacturing faults can be distinguished as the cause of flaw appearance in engineering structures. Consequential crack growth can seriously affect integrity of such structures leading to threats that are particularly serious when dealing with possible fracture of components that are used in transportation vehicles. Disastrous consequences can occur if crack growth susceptible components are used in vehicle assembly [1–3]. Using fracture mechanics principles to assess design of such components and performing adequate material selection tends to be inevitable. One of such problems is discussed in this paper where failure analysis of a cracked steering wheel was performed. Steering wheel mounted on a speed boat was observed. Nine years of regular marine service brought two cracks emanating from one of the fastener holes on wheel. Crack propagation continued until final fracture occurred. Analysis combined experimental and numerical techniques. Prior to removing steering wheel from the boat fasteners torque moments were measured. Visual inspection followed after which material type was experimentally determined. Aluminum steering wheel was also exposed to scanning electron microscopy (SEM) examination to investigate changes in the microstructure of the fractured surface. All mentioned serves to determine possible causes of crack occurrence, growth and fracture. In addition, finite element (FE) analysis was used to discover stress distribution on uncracked and cracked steering wheel. Results are valuable as a reference data in the design, mounting, exploitation and for predicting fracture propagation of a steering wheel. Previous available research on steering wheels mainly concentrates on mechanisms of force transmission [4], impact in case of collision [5] and ergonomics [6]. No previous work had been found that deals with crack occurrence or fracture of steering wheels of any kind. This paper represents a step in that direction using numerical analysis to investigate fracture behavior of cracked steering wheel and helping to improve design by finding the possible causes of crack occurrence.
برای دانلود رایگان مقاله شکست چرخ بوت فرمان اینجا کلیک نمایید.
کلمات کلیدی:
A cracking tale: why did the world's first jetliner fall out of the sky ... https://www.theguardian.com › Science › Aeronautics Jan 21, 2013 - Athene Donald: With aircraft failures once more in the news, we should ... Detailed analysis shows that the sharper the ends of the cracks the greater ... joins on the ship were welds in order to speed up wartime production). Case Studies in Engineering Failure Analysis | Directory of Open ... https://doaj.org/toc/2213-2902/4 Failure study of a cracked speed boat steering wheel. Goran Vukelic Case Studies ... Failure analysis of a polymer centrifugal impeller. Nikhil K. Kar, Yinghui Hu, ... Case Studies in Engineering Failure Analysis - SciTitles www.scititles.com/journal-articles/24067?page=1 Flywheel starter ring gear failures and hardness variation reduction in surface hardening process. 9/15 ... Failure study of a cracked speed boat steering wheel. MotorBoating - Nov 1945 - Page 74 - Google Books Result https://books.google.com/books?id=DGleJIWSRL4C Vol. 76, No. 5 - Magazine ... and who still have a yen to take a crack at the existing world speed records, will be most ... Race Commission Chairman A. L. Bobrick of the Americari Power Boat ... the survey of the back country, which spells success or failure in installing a ... 12th Region will supervise predicted log competition for motor yacht owners. MotorBoating - Oct 1926 - Page 156 - Google Books Result https://books.google.com/books?id=jWRaRJf9UDsC Vol. 38, No. 4 - Magazine No skipper will drive his craft across the bows of an approaching power boat, clearing its way ... Cigarette IV's first lap was made at a speed of 58.26 miles per hour and ... again until the 12th lap when she withdrew due to failure of the fuel supply. ... However, it led to the study and experiments with the strut problem and the ... Sport Diver - Jun 2002 - Page 14 - Google Books Result https://books.google.com/books?id=-v0x2b-B-rkC Vol. 10, No. 5 - Magazine DEALING WITH PROBLEMS The failure of a camera housing caused plenty of ... A COSTLY FLOOD Hearing the metallic-glass ping as the dome port cracks on ... National Institute of Ocean Technology were conducting a survey of pollution in ... telephone conversations and the chartered speedboat that delivers the gear to ...
