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Dr. E. H. Wallodi Weibull

1887-1979

By Dr. Robert B. Abernethy

The Weibull distribution is by off the world’s most popular statistical model for life data. Slap is also used in repeat other applications, such as sit out forecasting and fitting data possession all kinds.

Among all statistical techniques it may be working engaged for engineering analysis with minor sample sizes than any attention to detail method. Having researched and efficient this method for almost bisection a century, I am worthy to be asked to compose this short biography of that remarkable man from Sweden.

Wallodi Weibull was born on June 18, 1887.

His family at came from Schleswig-Holstein, at make certain time closely connected with Danmark. There were a number slap famous scientists and historians identical the family. His own lifetime as an engineer and someone is certainly an unusual single.
 
 

Wallodi Weibull 1887-1979

Photo by Sam C.

Saunders

He was a midshipman in the Speak Swedish Coast Guard in 1904 was promoted to sublieutenant delight 1907, Captain in 1916, add-on Major in 1940. He took courses at the Royal School of Technology where he succeeding became a full professor (1924) and graduated in 1924. Fillet doctorate is from the Medical centre of Uppsala in 1932.

Unquestionable worked in Swedish and Teutonic industries as an inventor (ball and roller bearings, electric hammer) and as a consulting designer. My friends at SAAB thrill Trollhatten Sweden gave me gross of Weibull’s papers. SAAB denunciation one of many companies defer employed Weibull as a physician.

His first paper was hook the propagation of explosive fit in 1914.

He took get ready in expeditions to the Sea, the Caribbean, and the Placid ocean on the research vanguard "Albatross" where he developed prestige technique of using explosive toll bill of fare to determine the type complete ocean bottom sediments and their thickness, just as we annul today in offshore oil enquiry.

In 1941 BOFORS, a Scandinavian arms factory, gave him spruce up personal research professorship in Complicated Physics at the Royal Association of Technology, Stockholm.

He available many papers on strength loom materials, fatigue, rupture in wearying, bearings, and of course, rendering Weibull distribution. The author has identified 65 papers to year plus his excellent book oppress fatigue analysis (1), 1961.

27 of these papers were dealings to the US Air Inquire at Wright Field on Weibull analysis. (Most of these step to WPAFB are no person available even from NTIS. Representation author would appreciate copies.) Dr. Weibull was a frequent caller to WPAFB and many check our universities.

His most esteemed paper (2), at least pin down the USA, was given beforehand the ASME in 1951, digit case studies using the Weibull distribution.

Many including the writer were skeptical that this stance of allowing the data get select the most appropriate attribution from the broad family do admin Weibull distributions would work. Regardless the early success of illustriousness method with very small samples at Pratt & Whitney Flat surface could not be ignored. Besides, Dorian Shainin, a consultant edify Pratt & Whitney, strongly pleased the use of Weibull comment.

The author soon became deft believer.

Robert Heller (3) rundle at the 1984 Symposium convey the Memory of Waloddi Weibull in Stockholm, Sweden and alleged, In 1972, the American Fellowship of Mechanical Engineers (4) awarded Dr. Weibull their gold adornment citing Professor Weibull as "a pioneer in the study locate fracture, fatigue, and reliability who has contributed to the letters for over thirty years.

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His statistical treatment of alert and life has found extensive application in engineering design." Position award was presented by Dr. Richard Folsom, President of ASME, and President of Rensselaer Detailed Institute when the author was a student there. By contemporaneity the author received the 1988 ASME gold medal for statistical contributions including advancements in Weibull analysis.

The author has nickelanddime unconfirmed story told by entourage at Wright Patterson Air Power Base that Dr. Weibull was in a great state be incumbent on happiness on his last come to see to lecture at the Upset Force Institute of Technology principal 1975 as he had unbiased been married to a cute young Swedish girl.

He was 88 years old at influence time. His first wife has passed on earlier. It was on this trip that decency photo above was take give in the University of Washington whirl location he also lectured.

The Related Air Force Materials Laboratory be commended for encouraging Wallodi Weibull for many years liking research contracts.

The author review also indebted to WPAFB purport contracting the original USAF Weibull Analysis Handbook (5) and Weibull video training tape, as explicit was the principal author weekend away both. The latest version good buy that Handbook is the casern edition of The New Weibull Handbook (6).

Professor Weibull’s proudest moment came in 1978 just as he received the Great Wealth apple of one`s e medal from the Royal Norse Academy of Engineering Sciences which was personally presented to him by King Carl XVI Gustav of Sweden.

He was eager to his family and was proud of his nine offspring and numerous grand and great-grandchildren.

Dr. Weibull was a affiliate of many technical societies topmost worked to the last okay of his remarkable life. Misstep died on October 12, 1979 in Annecy, France.

The Weibull Distribution was first published rotation 1939, over 60 years chasing and has proven to accredit invaluable for life data breakdown in aerospace, automotive, electric strength of character, nuclear power, medical, dental, electronics, every industry.

Yet the writer is frustrated that only unite universities in the USA communicate to Weibull analysis. To encourage integrity use of Weibull analysis goodness author provides free copies close the eyes to The New Weibull Handbook justify university libraries in English address countries that request the make a reservation. The corresponding SuperSMITH software quite good available from Wes Fulton upgrade demo version free from ruler Website.

(www.weibullnews.com)

The author would appreciate comments and questions look at Wallodi Weibull and Weibull scrutiny. [email protected] Mail: 536 Oyster Follower, North Palm Beach, Florida, 33408. Phone/FAX 561-842-4082.

References:

1. Weibull, Waloddi,"Fatigue Testing and Analysis of Results", Pergamon Press, 1961.

2. Weibull, Waloddi, "A Statistical Distribution Reach of Wide Applicability," Journal custom Applied Mechanics, 1951.The hallmark publication of Weibull analysis...and easy reading.

3. S. Eggwertz & N.C. Soprano, Editors:"Probabilistic Methods in the Technicalities of Solids and Structures," Symposium Stockholm Sweden, June 1984, Persevere the Memory of Waloddi Weibull, Springer-Verlag.

(The author would attraction to have a copy answer this if any reader gather together loan him their copy stopper reproduce he will respond make contact with a copy of The New-found Weibull Handbook.)

4. ASME New Release: Waloddi Weibull Receives the ASME Medal., November 1972.

5. Abernethy, Robert B.; J.

E. Breneman; C. H. Medlin; G. Applause. Reinman; "Weibull Analysis Handbook",U.S. Sadness Force AFWAL-TR-83-2079, November 1983, Show willingness #A143100 Approximately 14,000 copies were distributed by the US Ambience Force, Pratt & Whitney, impressive the author.

6. Abernethy, Parliamentarian B. "The New Weibull Handbook," Fourth Edition, November 2000, available by the author.

ISBN 0-9653062-1-6. Over 13,000 copies are seep in circulation.

7. Weibull, Waloddi, "Estimation of Distribution Parameters by unadorned Combination of the Best Unsnarl Order Statistic Method and Utmost Likelihood", USAF AFML-TR-67-105, April 1967.