Temat: dynamic performance test - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Test Method for Retractable Type Fall Arresters Designed for Horizontal Use
Autorzy:: Baszczyński, K.
Zrobek, Z
Powiązania:: https://bibliotekanauki.pl/articles/90947.pdf
Data publikacji:: 2003
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: personal protective equipment against falls from a height
retractable type fall arresters
test methods
dynamic performance test
ochrona przed upadkiem z wysokości
upadek z wysokości
sprzęt przeciwupadkowy
technika bezpieczeństwa pracy
Opis:: Retractable type fall arresters are designed to protect against falls from a height of people who need freedom of vertical movement. The practice of fall protection shows that the devices are also used to protect people who work on flat roofs. This application creates quite different operating conditions for the devices. In some situations those conditions can be dangerous for users. The article presents a theoretical analysis of phenomena occurring during a fall arrest with retractable type fall arresters arranged horizontally. The analysis was verified with laboratory tests. The article presents a proposal for the construction of a test stand and a test method for estimating retractable type fall arresters intended for horizontal use.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2003, 9, 3; 313-331
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Influence of Anchor Devices on the Performance of Retractable Type Fall Arresters Protecting Against Falls From a Height
Autorzy:: Baszczyński, K.
Powiązania:: https://bibliotekanauki.pl/articles/91071.pdf
Data publikacji:: 2006
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: personal protective equipment against falls from a height
retractable type fall arresters
anchor devices
test methods
dynamic performance test
upadek z wysokości
sprzęt przeciwupadkowy
ochrona przed upadkiem z wysokości
środki ochrony indywidualnej
Opis:: Retractable type fall arresters are part of the equipment used for protecting people against falls from a height. They are an intermediate part between full body harness worn by a man and the structural anchor at the worksite. The most important task of retractable type fall arresters is to arrest people’s falls and to reduce their harmful consequences. Information received from users as well as laboratories testing protective equipment indicates that the performance of such equipment is incorrect under specific conditions. The paper is concerned with an analysis of the conditions in which retractable type fall arresters demonstrate intermittent performance and with an explanation of that phenomenon. The results of tests investigating anchor devices and the performance of retractable type fall arresters are presented. External and internal factors contributing to intermittent performance have been determined and guidelines for safer use of these devices have been developed.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2006, 12, 3; 307-318
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A comprehensive cycloid pin-wheel precision reducer test platform integrated with a new dynamic measurement method of lost motion
Autorzy:: Yue, Huijun
Wu, Xiangkai
Shi, Zhaoyao
Zhang, Yue
Ye, Yong
Zhang, Lintao
Fu, Ying
Powiązania:: https://bibliotekanauki.pl/articles/2052087.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cycloid pin-wheel precision reducer
RV reducer
test platform
comprehensive performance
dynamic measurement of lost motion
decomposition test method
Opis:: While cycloid pin-wheel precision reducers (referred to as RV reducers) are widely used in industrial robots, a widely accepted design standard or verification method of their test platforms is not available. In this study, a comprehensive sliding-separation test platform of RV reducers was developed. The test platform can test various measurement items such as transmission error, static measurement of lost motion, dynamic measurement of lost motion, torsional rigidity, no-load running torque, starting torque, backdriving torque, and transmission efficiency of the RV reducer for robots. The principle and method of dynamic measurement of lost motion tests based on the two-way transmission error method were studied and this test function was successfully integrated with the comprehensive test platform in order to increase the test items of the dynamic performance parameters of RV reducers. The measurement results of the no-load running torque of the RV reducer were consistent with the Stribeck curve. Based on the concept of optimal measurement speed, a decomposition test method of the geometric component of the dynamic measurement of lost motion and the elastic component of the dynamic measurement of lost motion was proposed in the dynamic measurement test of lost motion. Through precision calibration, function test and repeatability test, the results were compared with the data of enterprise’s samples. The consistent results have proved that the test platform met engineering requirements and measurement accuracy requirements. Based on the new test principle, the developed platform can test more parameters of RV reducers with high precision and display the comprehensive test performance.
Źródło:: Metrology and Measurement Systems; 2022, 29, 1; 207-229
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Wyznaczanie parametrów lepkosprężystego modelu Burgersa mieszanek mineralno-asfaltowych na podstawie badania pod obciążeniem dynamicznym
Determination of parameters of viscoelastic Burgers model for asphalt mixtures based on dynamic modulus test
Autorzy:: Jaczewski, M.
Mejłun, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/143787.pdf
Data publikacji:: 2013
Wydawca:: Stowarzyszenie Inżynierów i Techników Komunikacji Rzeczpospolitej Polskiej
Tematy:: model Burgersa
parametry reologiczne
pełzanie pod obciążeniem dynamicznym
VEROAD
AMPT/SPT
Burgers model
rheological parameters
dynamic creep test
Asphalt Mix Performance Tester
Opis:: Metoda wyznaczania parametrów reologicznych lepkosprężystego modelu Burgersa dla mieszanek mineralno-asfaltowych wykorzystująca wyniki badania pełzania pod obciążeniem statycznym bywa często kłopotliwa. Autorzy artykułu przedstawiają, stosowaną przez nich, metodę wyznaczania tych parametrów na podstawie wyników badania próbek pod obciążeniem dynamicznym przy wykorzystaniu programu komputerowego VEROAD. Metoda wykorzystująca wyniki badania dynamicznego nie jest nowym pomysłem. Po raz pierwszy jednak w Polsce, a drugi w Europie do tego celu autorzy wykorzystali aparat AMPT/SPT firmy IPC Global.
The method of determining the rheological parameters of viscoelastic Burgers model for asphalt mixtures, based on the results of creep tests under static load, is often problematic. The authors present the method of determination of these parameters on the basis of dynamic creep test results and using a computer program “VEROAD”. This method is not a new idea. However, for the first time in Poland and the second in Europe for this purpose the authors used IPC Global’s Asphalt Mix Performance Tester (AMPT/SPT).
Źródło:: Drogownictwo; 2013, 11; 344-348
0012-6357
Pojawia się w:: Drogownictwo
Dostawca treści:: Biblioteka Nauki

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