Robert Dubs

from Wikipedia, the free encyclopedia

Robert Dubs (born January 3, 1880 in Vienna , † March 10, 1963 in Zollikon near Zurich) was a hydraulic engineer and university professor .

He was the son of Karolina geb. Zumbrunnen and the engineer Johann Heinrich Dubs. In 1908 he married Bertha Weber, daughter of the post-factor Albert. They had a daughter and two sons, including Werner Dubs.

Life

Soon after his birth, Robert Dubs' family moved from Vienna to Isleten on Lake Uri , where he spent his youth. He later stayed in the canton of Valais and from 1911 in Zurich . For a short time he worked in a commercial position, after which he graduated from the Zurich private school "Minerva".

Until 1905 he studied mechanical engineering at the Swiss Federal Polytechnic in Zurich . From 1906 to 1907 he was a mathematics teacher at the Minerva University of Applied Sciences. From 1907 to 1927 he worked as a senior engineer in the water turbine department at Escher Wyss AG .

In 1909 he made a contribution to the theory of transient runoff by translating Lorenzo Allievi's pioneering work into German together with Viktor Bataillard and adding his own contribution to the work on the theoretical recording of flow processes in tunnels and reservoirs. So contributed significantly to the spread of the corresponding pressure surge theory in the German-speaking area. In 1909, Dubs translated Allievis' theory of pressure surge, which he made usable in practice with his addition to the water lock calculation .

At Escher-Wyss he set up a research institute for turbine research in Zurich. While Escher Wyss previously only had a “turbine test station” at the Ravensburg plant , the low-pressure test facility in Zurich was built on Dubs' initiative and was still in use in 1963 after various modifications.

Dubs'sches X-Rad from Escher Wyss

With the further development of the Francis turbine to the X or Dubsrad, he created an important forerunner of the Kaplan turbine .

On behalf of Switzerland. Engineer and Architects Association SIA, he calculated the raid formulas for Switzerland. At the Electrotechnical Association he was significantly involved in the formulation of the water turbine rules.

In 1926 Dubs was appointed to succeed Franz Prášil as professor for hydraulics and hydraulic machines at the ETH Zurich . From 1927 to 1949 he was a full professor of water turbines and hydropower plants there. In this position he continued to devote himself to the theoretical treatment of drainage problems and in 1947 published the book «Applied Hydraulics».

From 1919 to 1922 he was on the Zurich City Council. From 1934 to 1942 he was a councilor in Zollikon, where he was made an honorary citizen in 1940.

Publications

  • General theory about the variable movement of water in pipes by Lorenzo Alliévi, authorized translation from the original Italian text with additions, explanations and figures. Edited with the assistance of the author by Robert Dubs and Viktor Bataillard October 4, 1929
  • Part II: tunnel and moated castle. By Robert Dubs. With 35 text figures. XII, 296 pp.
  • VII.419.:23.4.12. Dubs, Robert "Die Propellerturbine", special print from the magazine of the Association of German Engineers 48, Berlin 1924 301
  • VII.419.:23.4.13. Dubs, Robert "La Turbine a Hélice", reprint from Bulletin Technique de la Suisse Romande 4, Lausanne 1925 301
  • VII.419.:23.4.14. Dubs, Robert, and A. Utard "Hydraulische Druckregulatoren", special print from Schweizerische Bauzeitung LIX 1-3, Zurich 1912 301

Individual evidence

  1. ↑ Schweizerische Bauzeitung: Weekly for architecture, engineering, machine technology, publishing company of the academic technical associations, 1963, p.437 [1]
  2. ↑ Adolf Lüdin, Robert Otzen, Wasserkraftanlagen: First half of planning, headwater pipes and power plants p. 357 ; Ludwig Quantz, Wasserkraftmaschinen: an introduction to the nature, construction and calculation of ... [2]
  3. ^ Thomas Fuchs: Dubs, Robert. In: Historical Lexicon of Switzerland . [3] ; Gerber, H .: Robert Dubs. Schweizer Bauzeitung year 81, 1963 No. 23, pp. 436-437. [4] ; Vischer, Daniel (1932-) .: Swiss pioneers in hydraulics. On the 200th anniversary of Leonhard Euler's death. Swiss engineer and architect born 101 1983, No. 48, pp. 1129–1134.
  4. ↑ * General theory about the variable movement of water in pipes with Lorenzo Alliaevi, Robert Dubs and V. Bataillard [5]
  5. ↑ [6]
personal data
SURNAME Dubs, Robert
BRIEF DESCRIPTION Austrian hydraulic engineer and university lecturer
DATE OF BIRTH January 3, 1880
PLACE OF BIRTH Vienna
DATE OF DEATH March 10, 1963
Place of death Zollikon , Canton of Zurich