Autor: Dziechciowski, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Selection of Plate Components of Operators Cabin Walls in Aspect of Thermal Insulation and Transmission Loss
Autorzy:: Dziechciowski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/177467.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: acoustic and thermal comfort
heavy-duty machine cabin
transmission loss
thermal insulation
Opis:: The modern cabin of heavy duty machines have to fulfil a number of requirements which deal with operators’ work comfort. More and more often, the vibroacoustic and thermal comforts decide about the cabin quality. This paper presents principles of acoustic and thermal calculations as well as their use in combined assessment.
Źródło:: Archives of Acoustics; 2011, 36, 1; 109-119
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Identification of the Types of Measured Acoustic Modes Inside the Operator’s Cab in a Bulldozer
Autorzy:: Dziechciowski, Z.
Kozień, M. S.
Powiązania:: https://bibliotekanauki.pl/articles/178012.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heavy duty machine
acoustic modes
structural modes
Opis:: The aim of the study was to identify acoustic and structural modes in the spectrum obtained exper- imentally inside an operator’s cab in a bulldozer. Measurements were taken inside the operator’s cab in a caterpillar-track bulldozer Polremaco TD12NPH2E-2000, designed for work in underground mine enclosures. The acoustic pressure spectrum was obtained for varied rotational speeds of the engine during the free run of the machine. The reverberation time of the cab was determined basing on the pulse-type excited pressure response, followed by identification of the spectral components registered by measure- ments. Thus, identified frequencies were compared with natural acoustic frequencies registered inside the operator’s cab and with frequencies associated with the valves and ignition frequencies due to rotational speed and natural frequencies of structural vibrations of the cab’s walls. This study was conducted in an attempt to reduce the noise inside the operator’s cab using passive methods.
Źródło:: Archives of Acoustics; 2014, 39, 4; 653-663
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Vibration Transmitted to the Human Body during the Patient’s Ride in a Wheelchair
Autorzy:: Dziechciowski, Z. S.
Kromka-Szydek, M.
Powiązania:: https://bibliotekanauki.pl/articles/178034.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: wheelchair
criteria of vibration exposure assessment
threshold of vibration perception
amplitude-frequency characteristics
Opis:: The study investigates the spectra of vibrations transmitted onto the body of a wheelchair user during the ride on typical floor surfaces in public buildings and in their vicinity. Three wheelchair types are considered in the study (universal and active ones). Selected factors are examined that determine the amplitude of vibration acceleration acting upon humans in the analysed frequency range (wheelchair type, user’s body mass, surface type). The spectral analysis gives an insight into some of the factors which lead to a change of the vibration parameters registered at the user’s seat.
Źródło:: Archives of Acoustics; 2017, 42, 1; 137-148
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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