DR. U. HAUPT
Dr. U. Haupt –
the person behind the press service
Born in 1944, the editor got his school education at a German Gymnasium and took the school leaving examinations in 1964. After this, he had to do his military service and left after 2 years with the military rank of a lieutenant. He then continued with a 6-month traineeship in mechanical engineering at a German machine company. In 1966, he started his studies in mechanical engineering at the University of Hannover and graduated in 1973. During this time, he completed his theoretical professional education by traineeships in England (3 months), France (4 months) and South Africa (3 months) taking his final examinations in foreign languages at the same time. This enabled him later to teach French over 8 years beside his job.
After this professional training, Dr. Haupt continued to do research at the University of Hannover/Germany where he was employed at the Institute for Turbomachinery. Here, he was involved in theoretical research and practical investigations on blade vibration phenomena on centrifugal compressors. He wrote his doctoral thesis about this subject and received his doctor’s degree with distinction in 1984.
The research work he carried out involved at first the development of an 8-channel telemetry data transmission system, sending data from semi-conductor strain gages fixed on the fast rotating impeller blades of the compressor by radio transmission to a receiver located outside. On the basis of this technology, the blade vibration frequency and intensity in various operating conditions defined in the compressor diagram could be investigated. The experiments were carried out on a 1000 kW driven centrifugal compressor.
The work was focused on the evaluation of the danger the different excitation caused to the blades. The investigation was carried out in close cooperation with leading German and Swiss industrial companies working in this field. An outstanding success was obtained by the experimental proof of a complete reverse flow in an impeller of a centrifugal compressor exciting the blades. This was the basis for a new explanation of the “rotating stall” phenomenon in compressors, now explaining it as a vortex and no longer as a simple flow separation effect.
The editor continuously presented results of his work on national and international congresses and in journals. At the end of his professional career at the University in 1989, he looked back on 78 publications in his field.
Beside these research activities, the editor gave lectures in “Turbomachinery” at the Fachhochschule Lippe from 1985 – 1988. After he had abandoned his position at the University, he continued to give lectures in “Unsteady Flow Phenomena” from 1992 – 1998 at the University of Hannover.
In 1990, Dr. Haupt joined the company BISON-Werke as the head of the Hydro-Dyn press department, responsible for the development of the system. Over 10 years, he improved the system to advanced performance and served press customers to achieve more satisfactory press operating conditions. His knowledge in fluid flow, turbomachinery and vibration phenomena formed the basis for this work.
In 2000, the successor of BISON stopped the business activities in Hydro-Dyn presses. At this time, Dr. Haupt started his own business as a consultant in this field, where he was active the years before. This enabled him to focus his work completely on the wishes of his customers and to do fundamental work in further developing the system.
Dr. Haupt is supported in his daily business activities by his wife Ursula, doing the accounting work.
Dr. Haupt’s family consists, in addition, of 3 sons being young adults.