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Donald E. Bently
Donald E. Bently (October 18, 1924 – October 1, 2012) was a globally recognized authority on rotor dynamics and vibration monitoring and diagnostics, and an American entrepreneur, engineer, and philanthropist. He founded Bently Nevada Corporation in October, 1961, where he performed pioneering work in the field of instrumentation for measuring the mechanical condition of rotating machinery. He designed the first commercially successful eddy current proximity transducer. It became the de facto standard when the American Petroleum Institute adopted the proximity probe as the device for measuring acceptable shaft vibration during factory acceptance testing of centrifugal compressors. He was the company's President and later CEO until it attained $250 million in annual sales, when he sold it in February, 2002 to GE Energy. In 2017 GE merged it into Baker Hughes. The company continues to design, manufacture, and market vibration monitoring and diagnostic products and services as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveland, Ohio
Cleveland ( ), officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in the northeastern part of the state, it is situated along the southern shore of Lake Erie, across the U.S. maritime border with Canada, northeast of Cincinnati, northeast of Columbus, and approximately west of Pennsylvania. The largest city on Lake Erie and one of the major cities of the Great Lakes region, Cleveland ranks as the 54th-largest city in the U.S. with a 2020 population of 372,624. The city anchors both the Greater Cleveland metropolitan statistical area (MSA) and the larger Cleveland–Akron–Canton combined statistical area (CSA). The CSA is the most populous in Ohio and the 17th largest in the country, with a population of 3.63 million in 2020, while the MSA ranks as 34th largest at 2.09 million. Cleveland was founded in 1796 near the mouth of the Cuyahoga River by General Moses Cleaveland, after whom the city was named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seabees In World War II
When World War II broke out the United States Naval Construction Battalions (Seabees) did not exist. The logistics of a two theater war were daunting to conceive. Rear Admiral Moreell completely understood the issues. What needed to be done was build staging bases to take the war to the enemy, across both oceans, and create the construction force to do the work. Naval Construction Battalions were first conceived at Bureau of Yards and Docks (BuDocks) in the 1930s. The onset of hostilities clarified to Radm. Moreell the need for developing advance bases to project American power. The solution: tap the vast pool of skilled labor in the U.S. Put it in uniform to build anything, anywhere under any conditions and get the Marine Corps to train it. The first volunteers came skilled. To obtain these tradesmen, military age was waived to age 50. It was later found that several past 60 had managed to get in. Men were given advanced rank/pay based upon experience making the Seabees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eddy Current
Eddy currents (also called Foucault's currents) are loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction or by the relative motion of a conductor in a magnetic field. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. They can be induced within nearby stationary conductors by a time-varying magnetic field created by an AC electromagnet or transformer, for example, or by relative motion between a magnet and a nearby conductor. The magnitude of the current in a given loop is proportional to the strength of the magnetic field, the area of the loop, and the rate of change of flux, and inversely proportional to the resistivity of the material. When graphed, these circular currents within a piece of metal look vaguely like eddies or whirlpools in a liquid. By Lenz's law, an eddy current creates a magnetic field that opposes the change in the mag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pepperl+Fuchs
Pepperl+Fuchs SE is a German multinational company with its headquarters in Mannheim, Germany. The company manufactures products for fabrication and process automation and is specialized in sensor manufacturing, for example, sensors that are used in automatic doors in elevators. In 2022, the company's revenue first exceeded €1 billion. History Pepperl+Fuchs was founded in 1945 by Walter Pepperl and Ludwig Fuchs as a radio repair shop. By 1948, Pepperl+Fuchs was expanding into other electronic production, leading to the development of the first proximity switch in 1958 and the first transistor amplifier with an intrinsically safe control circuit. Pepperl+Fuchs has progressed in the development in areas such as sensing technology, intrinsic safety, and explosion protection technology. Now the company has approximately 6,300 employees worldwide with more than 40 foreign subsidiaries on six continents and manufacturing facilities in Germany, USA, Singapore, Hungary, China, I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas County, Nevada
Douglas County is a county in the northwestern part of the U.S. state of Nevada. As of th2020 Census the population was 49,488. Its county seat is Minden. Douglas County comprises the Gardnerville Ranchos, NV Micropolitan Statistical Area, which is also included in the Reno–Carson City– Fernley, NV Combined Statistical Area. History The town of Genoa in Douglas County was the first permanent settlement in Nevada. Genoa was settled in 1851 by Mormon traders selling goods to settlers on their way to California. Named for Stephen A. Douglas, famous for his 1860 Presidential campaign and debates with Abraham Lincoln, Douglas County was one of the first nine counties formed in 1861 by the Nevada territorial legislature. The county seat is Minden, after having been moved from Genoa in 1915. Various services run by the county include parks, law enforcement, road maintenance, building inspection, and the Minden–Tahoe Airport. Fire protection and emergency medical services a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eddy-current
Eddy currents (also called Foucault's currents) are loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction or by the relative motion of a conductor in a magnetic field. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. They can be induced within nearby stationary conductors by a time-varying magnetic field created by an AC electromagnet or transformer, for example, or by relative motion between a magnet and a nearby conductor. The magnitude of the current in a given loop is proportional to the strength of the magnetic field, the area of the loop, and the rate of change of flux, and inversely proportional to the resistivity of the material. When graphed, these circular currents within a piece of metal look vaguely like eddies or whirlpools in a liquid. By Lenz's law, an eddy current creates a magnetic field that opposes the change in the magnet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Los Angeles
The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California. UCLA's academic roots were established in 1881 as a teachers college then known as the southern branch of the California State Normal School (now San José State University). This school was absorbed with the official founding of UCLA as the Southern Branch of the University of California in 1919, making it the second-oldest of the 10-campus University of California system (after UC Berkeley). UCLA offers 337 undergraduate and graduate degree programs in a wide range of disciplines, enrolling about 31,600 undergraduate and 14,300 graduate and professional students. UCLA received 174,914 undergraduate applications for Fall 2022, including transfers, making the school the most applied-to university in the United States. The university is organized into the College of Letters and Science and 12 professional schools. Six of the schools offer undergraduate degre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Aviation
North American Aviation (NAA) was a major American aerospace manufacturer that designed and built several notable aircraft and spacecraft. Its products included: the T-6 Texan trainer, the P-51 Mustang fighter, the B-25 Mitchell bomber, the F-86 Sabre jet fighter, the X-15 rocket plane, the XB-70, the B-1 Lancer, the Apollo command and service module, the second stage of the Saturn V rocket, and the Space Shuttle orbiter. Through a series of mergers and sales, North American Aviation became part of North American Rockwell, which later became Rockwell International, and is now part of Boeing. History Early years On December 6, 1928, Clement Melville Keys founded North American as a holding company that bought and sold interests in various airlines and aviation-related companies. However, the Air Mail Act of 1934 forced the breakup of such holding companies. North American became a manufacturing company, run by James H. Kindelberger, James H. "Dutch" Kindelberger, who had bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocketdyne
Rocketdyne was an American rocket engine design and production company headquartered in Canoga Park, California, Canoga Park, in the western San Fernando Valley of suburban Los Angeles, California, Los Angeles, in southern California. The Rocketdyne Division was founded by North American Aviation (NAA) in 1955, and was later part of Rockwell International (1967–1996) and Boeing (1996–2005). In 2005, the Rocketdyne Division was sold to United Technologies Corporation, becoming Pratt & Whitney Rocketdyne as part of Pratt & Whitney. In 2013, Pratt & Whitney Rocketdyne was sold to GenCorp, which merged it with Aerojet to form Aerojet Rocketdyne.Marjorie Censer(18 Dec 2022) L3Harris moves to acquire Aerojet Rocketdynefor $4.7 billion, after Lockheed Martin ended its attempt for Rocketdyne in Feb 2022 History After World War II, North American Aviation (NAA) was contracted by the Defense Department to study the German V-2, V-2 missile and adapt its engine to Society of Automotiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burlington, Iowa
Burlington is a city in, and the county seat of, Des Moines County, Iowa, United States. The population was 23,982 in the 2020 census, a decline from the 26,839 population in 2000. Burlington is the center of a micropolitan area, which includes West Burlington and Middletown, Iowa, and Gulfport, Illinois. Burlington is the home of Snake Alley, the most crooked street. History Prior to European settlement, the area was neutral territory for the Sac and Fox Native American tribes, who called it Shoquoquon (''Shok-ko-kon''), meaning Flint Hills. In 1803, President Thomas Jefferson organized two parties of explorers to map the Louisiana Purchase. The Lewis and Clark Expedition followed the Missouri River, while Lt. Zebulon Pike followed the Mississippi River. In 1805, Pike landed at the bluffs below Burlington and raised the United States Flag for the first time on what would become Iowa soil and recommended construction of a fort. The recommendation went unheeded. The Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa Army Ammunition Plant
The Iowa Army Ammunition Plant (IAAAP), located in Des Moines County in southeastern Iowa, near the city of Burlington, produces and delivers component assembly, and medium- and large-caliber ammunition items for the United States Department of Defense using modern production methods in support of worldwide operations. The facility is part of the US Army Joint Munitions Command. Geography The 19,011 acre plant is located at 17571 DMC Highway 79, Middletown, Iowa; 8 miles west of Burlington, Iowa. History The IAAAP was established in November 1940, as the Iowa Ordnance Plant and started production in 1941. Production was stopped in 1945, when World War II ended. The plant resumed its ammunition manufacturing mission in 1949. In 1950, in response to the Korean conflict, production increased dramatically. In 1975, the Army assumed responsibility for IAAAP. Installation Overview IAAAP is housed on 19,011 acres with 767 buildings, 271 igloos and storage capacity of 1,100,775 squar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
