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prof. Ing. Jiří Dunovský, CSc., IWE

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Projects and Grants

The information comes from the university database V3S.

Principal Investigator:
prof. Ing. Jiří Dunovský, CSc., IWE
Annotation:
The project aims to design a new type of progressive crash barriers for vehicles and foot passengers on the road bridges. Progressiveness lies in the technical and user behavior barriers, the economic indicators and aesthetic design barriers. The main emphasis is on design production and expensive type of barriers that meets rhe requirements prescribes level of detention, the smooth installation of crash barriers and anchor the bridge concrete ledges, to ensure long-term corrosion protection for all elements of the barriers to easy exchange of demaged elements of the rails and crash barriers for easy maintenance. The project envisages a new type of verification on the proposed barriers using the barrier test.
Department:
Department of Vehicle Technology
Year:
2011 - 2013
Program:
Programme of applied research and experimental development ALFA

Principal Investigator:
Ing. Roman Švábek
Co-Investigators:
Petr Ambrož; Ing. Radka Bičišťová; prof. Ing. Jiří Dunovský, CSc., IWE
Annotation:
The project is focused on the usage of laser technologies in the production of tools and moulds. Development and production of new formers and injection moulds poses claims on the added value of these tools. One of the possibilities, how to increase the durability, hardness, toughness and other mechanical properties, is the usage of laser technologies. With the laser beam it is possible to obtain results, which would be very difficult to obtain with conventional technologies. The new and progressive method of coating of hardfacing layers is deposition with laser. This could be also used repeatedly by the renewal of the specific part. Very good properties of the final laser weld deposit predestines this method for usage in very ambitious applications, for example formers, dies or injection moulds. The laser beam can be used for immediate heating of a specific part of a tool, too. With this case of modification it is possible to obtain a local heat treatment of a tool. The heat treatment
Department:
Department of Manufacturing Technology
Year:
2010 - 2011
Program:
Studentská grantová soutěž ČVUT - SGS10/159/OHK2/2T/12

Principal Investigator:
doc. Ing. Ladislav Kolařík, Ph.D.
Co-Investigators:
prof. Ing. Jiří Dunovský, CSc., IWE
Annotation:
Tento projekt má finančně zabezpečit účast na mezinárodní konferenci Aluminium 2007, kde má navrhovatel projektu schválenou přednášku na téma "Vliv opakovaného svařování na mechanické vlastnosti Al slitin". Přednáška bude pojednávat o možnostech oprav svarů vytvrditelných slitin typu AlMgSi, používaných při výrobě kolejových vozidel.
Department:
Department of Manufacturing Technology.
Year:
2007 - 2007
Program:
IGS ČVUT - CTU0720512

Principal Investigator:
Ing. Alexandr Jančárek, CSc.
Co-Investigators:
prof. Ing. Jiří Dunovský, CSc., IWE
Annotation:
The project is aimed at the development of two novel sensing structures in which long-period gratings (LPGs) inscribed by a CO2 laser in optical fibers are employed for bend sensing. A basic feature of the first structure, built on an LPG in aconventional fiber of a certain type, will be its insensitivity to the external index of refraction, allowing the coated or embedded LPGs to be reliably operated even under harsh conditions. This structure, based on a designed fiber with aparabolic-index profile inthe cladding, will be optimized for both bending sensitivity and index insensitivity and tested in model structural monitoring. The second structure will be built on LPGs in microstructure fibers (MSFs). These LPGs, whichexhibit an attractive feature of temperature insensitivity, have not been explored for bend sensing yet. First, a method for LPG inscription in MSFs available will be developed and bending sensitivity of the produced LPGs measured. Further, an LPG-MSF
Department:
Department of Laser Physics and Photonics
Year:
2006 - 2008
Program:
Standard projects

Principal Investigator:
prof. Ing. Jiří Dunovský, CSc., IWE
Co-Investigators:
Ing. Alexandr Jančárek, CSc.
Annotation:
The project is aimed at the development of two novel sensing structures in which long-period gratings (LPGs) inscribed by a CO2 laser in optical fibers are employed for bend sensing. A basic feature of the first structure, built on an LPG in aconventional fiber of a certain type, will be its insensitivity to the external index of refraction, allowing the coated or embedded LPGs to be reliably operated even under harsh conditions. This structure, based on a designed fiber with aparabolic-index profile inthe cladding, will be optimized for both bending sensitivity and index insensitivity and tested in model structural monitoring. The second structure will be built on LPGs in microstructure fibers (MSFs). These LPGs, whichexhibit an attractive feature of temperature insensitivity, have not been explored for bend sensing yet. First, a method for LPG inscription in MSFs available will be developed and bending sensitivity of the produced LPGs measured.
Department:
Department of Manufacturing Technology
Year:
2006 - 2008
Program:
Standard projects

Principal Investigator:
Ing. Petr Císařovský, Ph.D.
Co-Investigators:
prof. Ing. Jiří Dunovský, CSc., IWE
Annotation:
Tento projekt se zabývá řešením disertační práce v oblasti laserového mikrořezání a je zaměřen na návrh a vývoj nových tělních implantátů. V rámci tohoto projektu bude vyvinuta nová technologie pro výrobu součástí pro lékařské účely z Ni-Ti slitin, zvaných nitinol. Dále v rámci tohoto projektu bude obnovena a zdokonalena část optické dráhy laseru JK 701H firmy Lumonics.
Department:
Department of Manufacturing Technology.
Year:
2004 - 2004
Program:
IGS ČVUT - CTU0406212

Principal Investigator:
prof. Ing. Jiří Dunovský, CSc., IWE
Co-Investigators:
Ing. Alexandr Jančárek, CSc.
Annotation:
The project is aimed at the development of a new generic type of LPG-based sensing fibers with properties tailored to sensitive detection of changes of the external refractive index and at the employment of these fibers for the detection of hydrocarbons in water. The LPGs in the fibers will be fabricated by releasing the residual stress in silica optical fibers by exposing these fibers to intense CO2 laser light. This residual stress will be tailored by selecting dopants capable to change properly the viscosity and thermal expansion coefficient of glasses for fiber fabrication and by controlling the tension during drawing the fiber. For these purpose the core of the fibers will be doped by germanium, phosphorous and boron oxides and the optical cladding will be doped by phosphorous oxide, fluorine and boron oxide. In addition to the stress releasing, the LPGs transmission spectra will be tailored through the modification of the cladding refractive-index profile.
Department:
Department of Manufacturing Technology.
Year:
2003 - 2005
Program:
Standard projects

Principal Investigator:
Ing. Alexandr Jančárek, CSc.
Co-Investigators:
prof. Ing. Jiří Dunovský, CSc., IWE
Annotation:
Laser Technology Center - the innovative solution to manufacturing and production problems, the development of new technical components, competent consultancy and training, highly specialised personnel and latest technology.
Department:
Department of Laser Physics and Photonics
Year:
1999 - 2001
Program:
Development of centres of superior industrial products and technologies

Principal Investigator:
prof. Ing. Jiří Dunovský, CSc., IWE
Department:
Department of Vehicle Technology
Year:
1996 - 1996
Program:
MŠMT - projekty Fondu rozvoje vysokých škol (FRVŠ) - 0220/5

Principal Investigator:
Ing. Martin Jalovecký
Co-Investigators:
prof. Ing. Jiří Dunovský, CSc., IWE
Department:
Department of Vehicle Technology
Year:
1996 - 1996
Program:
IGS ČVUT - 3096