Kenneth Langstreth Johnson FRS

FREng Fellowship of the Royal Academy of Engineering (FREng) is an award and Scholarship, fellowship for engineers who are recognised by the Royal Academy of Engineering as being the best and brightest engineers, inventors and technologists in the UK a ...

(19 March 1925 – 21 September 2015) was a British engineer,

Professor Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who pr ...

of Engineering at the

University of Cambridge , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...

from 1977 to 1992 and a

Fellow A fellow is a concept whose exact meaning depends on context. In learned or professional societies, it refers to a privileged member who is specially elected in recognition of their work and achievements. Within the context of higher education ...

Jesus College, Cambridge Jesus College is a constituent college of the University of Cambridge. The college's full name is The College of the Blessed Virgin Mary, Saint John the Evangelist and the glorious Virgin Saint Radegund, near Cambridge. Its common name comes fr ...

. Most of his research was in the areas of

tribology Tribology is the science and engineering of interacting surfaces in relative Motion (physics), motion. It includes the study and application of the principles of friction, lubrication and wear. Tribology is highly interdisciplinary, drawing on m ...

and

contact mechanics Contact mechanics is the study of the deformation of solids that touch each other at one or more points.Johnson, K. L, 1985, Contact mechanics, Cambridge University Press.Popov, Valentin L., 2010, ''Contact Mechanics and Friction. Physical Pri ...

Education

Johnson was educated at Barrow Grammar School and the

University of Manchester , mottoeng = Knowledge, Wisdom, Humanity , established = 2004 – University of Manchester Predecessor institutions: 1956 – UMIST (as university college; university 1994) 1904 – Victoria University of Manchester 1880 – Victoria Univer ...

where he was awarded MScTech,

Master of Arts A Master of Arts ( la, Magister Artium or ''Artium Magister''; abbreviated MA, M.A., AM, or A.M.) is the holder of a master's degree awarded by universities in many countries. The degree is usually contrasted with that of Master of Science. Tho ...

and

Doctor of Philosophy A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common Academic degree, degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields ...

degrees supervised by H. Wright Baker.

Awards and honours

Johnson was elected a

Fellow of the Royal Academy of Engineering Fellowship of the Royal Academy of Engineering (FREng) is an award and fellowship for engineers who are recognised by the Royal Academy of Engineering as being the best and brightest engineers, inventors and technologists in the UK and from aroun ...

in 1987, a Fellow of the Royal Society (FRS) in 1982 and won their

Royal Medal The Royal Medal, also known as The Queen's Medal and The King's Medal (depending on the gender of the monarch at the time of the award), is a silver-gilt medal, of which three are awarded each year by the Royal Society, two for "the most important ...

in 2003 "In recognition of his outstanding work in the field of

." His 1971 paper with

Kevin Kendall Kevin Kendall FRS is a British physicist who received a London external BSc degree at Salford CAT in 1965 while working as an engineering apprentice at Joseph Lucas Gas Turbine Ltd. He became interested in surface science during his Ph.D. s ...

and Alan D. Roberts forms the basis of modern theories of

. He also made significant contributions to the understanding of fluid rheology under elastohydrodynamic

lubrication Lubrication is the process or technique of using a lubricant to reduce friction and wear and tear in a contact between two surfaces. The study of lubrication is a discipline in the field of tribology. Lubrication mechanisms such as fluid-lubric ...

conditions. He received the International Award from the

Society of Tribologists and Lubrication Engineers The Society of Tribologists and Lubrication Engineers (STLE) is an American non-profit technical society for the tribology and lubrication engineering sectors worldwide. Its offices are in Park Ridge, Illinois. Established in 1944 as the Ameri ...

in 1983. He was awarded the Tribology Gold Medal from the

Institution of Mechanical Engineers The Institution of Mechanical Engineers (IMechE) is an independent professional association and learned society headquartered in London, United Kingdom, that represents mechanical engineers and the engineering profession. With over 120,000 member ...

in 1985. He was awarded the

Mayo D. Hersey Mayo Dyer Hersey (August 30, 1886 – September 5, 1978) was an American engineer, physicist at the National Bureau of Standards and other government agencies, and Professor of Engineering at Brown University. He received the 1957 ASME Medal, and th ...

Award from the

American Society of Mechanical Engineers The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing ...

in 1991. In 1999, Johnson won the

William Prager Medal The William Prager Medal is an award given annually by the Society of Engineering Science (SES) to an individual for "outstanding research contributions in either theoretical or experimental Solid Mechanics or both". This medal was established in ...

awarded by the Society of Engineering Science. He was also awarded the 2006

Timoshenko Medal The Timoshenko Medal is an award given annually by the American Society of Mechanical Engineers (ASME) to an individual "in recognition of distinguished contributions to the field of applied mechanics." The Timoshenko Medal, widely regarded as th ...

. He died on 21 September 2015.

References

{{DEFAULTSORT:Johnson, Kenneth Langstreth Royal Medal winners English mechanical engineers 2015 deaths Fellows of Jesus College, Cambridge Fellows of the Royal Society 1925 births Fellows of the Royal Academy of Engineering People from Barrow-in-Furness Tribologists Professors of engineering (Cambridge)