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Tytuł:
Advanced Magnetic Materials for Aeronautics
Autorzy:
Šmelko, M.
Praslička, D.
Blažek, J.
Powiązania:
https://bibliotekanauki.pl/articles/97789.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
microwires
strain gauge
mechanical stress
contactless
Opis:
In the field of magnetic sensors, magnetic microwires with positive magnetostriction are the materials of the future. Their mechanical and magnetic properties render them ideal materials for applications in aeronautics. A single microwire with a 40 μm diameter and a length of 10 mm is capable of capturing information about tensile stresses, magnetic fields, temperature and distance. This information is carried by a parameter called the Switching Field, HSW, which is specific for different types of microwire. Numerous physical qualities affect the HSW and through sensing of HSW, these qualities may be quantified. (A number of physical qualities affecting HSW can be sensed and quantified by means of a contactless induction method.) What distinguishes the system developed by the present authors from other measuring systems based on magnetic microwires is the positioning of a microwire outside the coil system. Thanks to this improvement it is possible to use microwires embedded directly in the construction material. Small dimensions microwires do not damage the structure of the construction material. The absence of a galvanic connection makes this technology even more interesting compared with traditional forge gauges. Offering the possibility of the simultaneous measuring of four parameters, this technology can be used in a wide range of aviation applications. Measurements of an external magnetic field can be used for the navigation and stabilization of an aerial vehicle. Tensile stress and distance measuring can be helpful to understand some processes occurring under the surface of the construction material and also to perform fatigue monitoring or structure load monitoring. Another big advantage of magnetic microwires is the low price. Just 1 gram of base material is sufficient to prepare about 40 km of microwire. All these features combine to offer us a material ideal for Smart Sensors, possibly available for use in the near future.
Źródło:
Fatigue of Aircraft Structures; 2013, 5; 60-65
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vlijanie nesimmetrichnosti raspolozhenija nakladok v stykie S21Rn iz armatury klassa A500C pri issledovanii malociklovojj ustalosti
Influence of asymmetry location linings in joints S21Rn from class of reinforcement A500S at low-cycle fatigue reserch
Autorzy:
Mennanov, Eh.
Shevchenko, N.
Kramarenko, D.
Powiązania:
https://bibliotekanauki.pl/articles/77902.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
rebar
welded joint
reinforcing bar
strain gauge
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 5
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Displacements of shell in soil-steel bridge subjected to moving load: determination using strain gauge measurements and numerical simulation
Autorzy:
Machelski, Czesław
Sobótka, Maciej
Grosel, Szczepan
Powiązania:
https://bibliotekanauki.pl/articles/2073756.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
soil-steel structure
moving load
strain gauge
Opis:
This paper analyses displacements of a shell in a soil-steel bridge subjected to quasi-static moving loads. The considerations relate to a large span structure located in Ostróda, Poland. In particular, shell displacements during a loading cycle consisting of consecutive passages of a pair of trucks over the bridge are investigated. The results of a full-scale test, that is, the readings from a system of strain gauges arranged along the shell circumferential section, are the basis for determination of shell displacements. The proposed algorithm makes it possible to calculate any component of the displacement using just a simple model of the shell in the form of a linear elastic curvilinear beam. The approach uses real measurements, and thus, it yields results of displacements reflecting the actual mechanical behaviour of the entire composite structure including not only the shell, but also the backfill, the pavement, etc. The calculated state of displacement sets the basis for calibration of the numerical model. Finite element (FE) analyses include staged construction, that is, backfilling the shell by placing successive soil layers, as well as the loading test with the vehicles moving over the bridge. It is demonstrated that the ballasting of the shell during backfilling contributes to the improvement of the simulated behaviour of the object at the stage of operation, that is, when subjected to moving truck load. Thus, the calibration of the FE model is successfully carried out using the results of strain gauge measurements.
Źródło:
Studia Geotechnica et Mechanica; 2022, 44, 1; 26--37
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations of the vibration effect in a measurement system for air flow phenomena in large pipelines
Autorzy:
Kabaciński, M.
Pawliczek, R.
Powiązania:
https://bibliotekanauki.pl/articles/114391.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
air flow
vibration
strain gauge
virtual instrument
Opis:
A measuring system for investigation of the air flow phenomena in large tubes is presented in this paper. The main goal is to measure and analyze the vibration effect of a sensing element used for air velocity and air stream measurement. It was observed that some vibrations occurred and involved damage effect in the flow sensor. The measuring system is based on the strain gauge technology with the use of a virtual instrument in the laboratory equipment. The presented system allows measuring, identifying and analyzing vibrations of the sensor in time and frequency domains. It was created as a virtual instrument, very easy to implement into the entire control system of the stand. It was found that the load of the sensing element was asymmetric and the mean load value, compared to variable loads, arose from disturbances of the air flow around the sensor. It was observed for the examined velocities of the air stream in the range up to 35 m/s.
Źródło:
Measurement Automation Monitoring; 2016, 62, 3; 96-99
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modular Test Stand for Fatigue Testing of Aeronautical Structures - Verification of Assumptions
Autorzy:
Leski, Andrzej
Wronicz, Wojciech
Kowalczyk, Piotr
Szmidt, Michał
Klewicki, Robert
Włodarczyk, Karol
Uliński, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2105142.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
fatigue
test
airframe
veryfication
strain gauge
DIC
Opis:
The Modular Test Stand was developed and manufactured to decrease the cost of fatigue testing and reduce the time of its completion as well as to enable testing specimens under more complex load conditions. The stand consists of three connected sections, similar to a wing box, all being loaded in the same way. Thanks to that, several specimens can be tested simultaneously. This configuration requires that stress and strain distribution should be reasonably uniform, as assumed in the design stage. The structure can be loaded with bending or torsion. A whole section, selected structural node or a specimen mounted in the structure as well as a repair or a sensor can be a test object. Two stands, one for bending and one for torsion were prepared. This paper presents the verification of the assumed strain and stress distributions on the skin panels. The measurements were performed with the use of Digital Image Correlation (DIC) as well as strain gauges. DIC measurements were performed on one skin panel of the central section. Five strain gauge rosettes were installed on both panels of the one section. In addition, one rosette was applied to one skin panel in each of two other sections. Measurements were performed on the stand for torsion as well as on the stand for bending. The results of DIC analysis and strain gauge measurement during torsion show uniform shearing strain distributions on the panels. During bending, on the tensioned side, the strains obtained indicate quite uniform strain distributions. On the compressed side, local buckling of the skin panels results in high strain gradients. Strain levels obtained with the use of a DIC analysis and strain gauge measurements were similar. Moreover, horizontal displacements of markers in the spar axis during bending was determined based on a series of photographic. The deflection line obtained in this way has a shape similar to arc, which is characteristic of the constant bending moment. The stand was tested with torsional and bending loads in order to verify the design assumptions. The results of strain distributions on the skin panels with the use of DIC and strain gauges as well as the deflection line of the spar axis indicate that the Modular Test Stand performs as assumed and can be used for tests.
Źródło:
Fatigue of Aircraft Structures; 2020, 12; 78--91
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated strain gauge printing in a CFRP structure
Autorzy:
Misch, Sandra
Welzel, Florian
Möhring, Hans-Christian
Powiązania:
https://bibliotekanauki.pl/articles/100150.pdf
Data publikacji:
2019
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
strain gauge
CFRP
inkjet printing
machine tools
Opis:
Our approach is to integrate printed strain gauges into a structure of laminated carbon fibre reinforced plastics (CFRP). This can provide minimizing disturbances caused by an additional sensor weight. Another point is to reduce the occurrence of pre-damage, as a printed structure is integrated directly into the CFRP. Due to the printing, no additional masses are applied to the CFRP by cables. To this end, the boundary conditions for the print are first explained. Subsequently, the strain gages were printed. For this purpose, studies were carried out regarding the orientation of the strain gage printing direction, the influence of repeated printing, the overlapping during printing and the subsequent lamination in CFRP plates. The sensors are to be used in the structure of the CFRP plate in a machine tool.
Źródło:
Journal of Machine Engineering; 2019, 19, 3; 74-81
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Strain Gauges in Measurements of Strain Distribution in Complex Objects
Autorzy:
Tutak, P.
Powiązania:
https://bibliotekanauki.pl/articles/108730.pdf
Data publikacji:
2014
Wydawca:
Społeczna Akademia Nauk w Łodzi
Tematy:
strain gauge
FEA
charge air cooler
thermal cycle
Opis:
This article presents an application of strain gauges in measurements of strain which occurs in charge air cooler during the thermal cycle test. The work shows the main idea of measuring system based on strain gauges and important aspects that should be considered when performing measurement. In this article there has been also presented construction and principle operation of a strain gauge measurement system.
Źródło:
Journal of Applied Computer Science Methods; 2014, 6 No. 2; 135-145
1689-9636
Pojawia się w:
Journal of Applied Computer Science Methods
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Local Phenomena During Riveting Process
Autorzy:
Kaniowski, J.
Wronicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/97899.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
riveting
fatigue
strain gauge
FE model
residual stress
airframes
Opis:
The paper presents experimental and numerical study of the local phenomena during the riveting process. It is commonly accepted that technological factors of the riveting process has a strong influence on the fatigue life of riveted joints. The authors analysed the papers concerned the experimental researches of the riveting force influence on fatigue life. The magnitude of the life increase caused by the riveting force increase suggests the authors that this is not only the result of beneficial stress system but the change of the joint formation mechanism has taken place. This was an inspiration to undertake more detailed researches of the riveting process. The strain progress during the riveting process has been experimentally investigated for four types of aluminium rivets used in airframes. Measurements confirm very high strains near the driven head. For some types of rivets the reversal strain signal has been recorded. Several FE model has been use to investigate the riveting process. The axisymmetric and solid models were used. The agreement of experimental and numerical results in some cases were good, in other cases the numerical models demand further development. In any calculations, the reversal strain effect has not been obtained, This suggest that it is result of the phenomenon which has not been taken into account in numerical modelling. The working hypothesis has been assumed that during the riveting process adhesive joints (called cold welding) were formed and destroyed during the process, what was the reason of the observed reversal strain signal. The authors are going to continue this investigation.
Źródło:
Fatigue of Aircraft Structures; 2013, 5; 66-78
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Insight Into Vibration Sources in Turbines
Autorzy:
Moneta, Grzegorz
Jachimowicz, Jerzy
Pietrzakowski, Marek
Doligalski, Adam
Szwedowicz, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/2105187.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
vibrations
blade
gas turbine
turbine engine
strain gauge
tip timing
Additive Manufacturing
Opis:
Despite of nearly 100 years of turbine engine development and design, blade vibrations remain a great engineering challenge. The rotating turbine blades’ vibrations lead to cyclic oscillations, which result in alternating stress and strain in harsh environments of high temperature and pressure. In modern aeroengines, high hot flow velocities might generate erosion and corrosion pitting on the metal surfaces, that leverage remarkably mean stresses. The combination of both mean and alternating stresses can lead to unexpected engine failures, especially under resonance conditions. Then, alternating stress amplitudes can exceed the safety endurance limit, what accelerates the high cyclic fatigue leading quickly to catastrophic failure of the blade. Concerning the existing state-of-the-art and new market demands, this paper revises forced vibrations with respect to excitation mechanisms related to three design levels: (i) a component like the blade design, (ii) turbine stage design consisting of vanes and blades and (iii) a system design of a combustor and turbine. This work reviews the best practices for preventing the crotating turbine and compressor blades from High Cyclic Fatigue in the design process. Finally, an engine commissioning is briefly weighed up all the pros and cons to the experimental validations and needed measuring equipment.
Źródło:
Fatigue of Aircraft Structures; 2021, 13; 40--53
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skalowanie czujnika tensometrycznego za pomocą funkcji nieliniowej z wymuszeniem w wybranym punkcie jego charakterystyki
Graduation of tensometric sensor by non-linear function with force at the selected point of its characteristic
Autorzy:
Filipowski, Ryszard
Arasimowicz, Anna
Lechniak, Zbigniew
Zawora, Józef
Powiązania:
https://bibliotekanauki.pl/articles/1818863.pdf
Data publikacji:
2020
Wydawca:
Wydawnictwo AWART
Tematy:
tensometr
warstwa powierzchniowa
pomiar naprężenia
strain gauge
graduation
surface layer
stress measurement
Opis:
Do oceny jakości obróbki zrealizowanej w procesach wytwórczych niezbędne są pomiary wielkości, które mogą stanowić kryteria oceny. Dokładność tych pomiarów zależy, m.in. od dokładności skalowania. W artykule przedstawiono nową, oryginalną procedurę skalowania czujnika tensometrycznego umożliwiającego precyzyjne określenie wartości naprężeń jakie zostają w warstwie wierzchniej po obróbce. Przeprowadzona weryfikacja doświadczalna wykazała poprawność procedury oraz pełną jej przydatność w badaniach technologicznych.
For the evaluation of quality of machining realized in manufacturing processes measurements of quantities which may constitute evaluation criteria are necessary. The accuracy of these measurements depends on, among other from scaling accuracy of sensor. In this paper a new, original procedure for scaling a strain gauge sensor is described. It allows precise determination of values of stresses that remain in surface layer after machining. The experimental verification carried out showed the correctness of the procedure and its full usefulness in technological investigations.
Źródło:
Obróbka Metalu; 2020, 3; 36--41
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contact interactions between soil and a corrugated metal sheet in soil-shell structures under construction
Autorzy:
Machelski, Czesław
Powiązania:
https://bibliotekanauki.pl/articles/2073757.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
soil-steel structure
corrugated metal sheet
construction phase
strain gauge
geodetic measurement
Opis:
During the construction of soil-shell objects, large deformations of the shell, which is made of corrugated metal sheet, occur. This enables geodetic techniques to be used when monitoring such objects. On this basis, displacements of selected points of the shell are determined, and it is then possible to obtain bending moments, as shown in this paper. Based on measurements using strain gauges in the circumferential band of the shell, internal forces in steel are estimated. The algorithm given in the paper enables the impact of soil on the shell in the examined objects to be analysed. The proposed method of analysing forces in the contact layer becomes especially useful when the static conditions of the model of a shell, which is considered as a bar submerged unilaterally in the soil medium, are met. The paper indicates the possibility of using both measuring techniques. Calculations include a smaller share of axial forces on the contact impact during the laying phase of the backfill. The paper provides examples of the analysis of built shells and record-breaking objects, with an assessment of the effectiveness of the proposed algorithm. Good mapping of contact forces, which were calculated on the basis of bending moments, was indicated even when there was not a dense grid of measuring points. An important advantage of the algorithm involves reduction of the circumferential band that is separated from the soil-shell system to the bar, which is an element resulting from the division of the structure into subsystems.
Źródło:
Studia Geotechnica et Mechanica; 2022, 44, 1; 1--12
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przetwornik z modulacją kwadraturową do pomiaru parametrów wiatru
Transducer with quadrature modulation for measurements of wind parameters
Autorzy:
Rylski, A.
Powiązania:
https://bibliotekanauki.pl/articles/157100.pdf
Data publikacji:
2008
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
sensory
tensometry
modulacja kwadraturowa
mostki niezrównoważone
sensors
strain gauge
quadrature modulation
unbalanced bridge
Opis:
W artykule opisano kształt belki przetwornika tensometrycznego charakteryzującego się stałym współczynnikiem ugięcia w funkcji zmian prędkości wiatru oraz zaproponowano mostkową modulację kwadraturową do jednoczesnego pomiaru dwóch parametrów wiatru: prędkości i kierunku. Ta konstrukcja nie posiada elementów ruchomych i jest niewrażliwa na zmiany temperatury i wilgotności powietrza.
The paper presents the shape of a strain gauge transducer beam which is characterized by a constant deflection coefficient at wind speed changes. The bridge quadrature modulation is proposed for simultaneous measurements of the wind intensity and direction. The presented construction has no movable elements and is insensitive to changes in air temperature and humidity.
Źródło:
Pomiary Automatyka Kontrola; 2008, R. 54, nr 12, 12; 857-859
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie monitoringu tensometryczno-parasejsmicznego w pomiarach wpływów dynamicznych wzbudzonych detonacją materiału wybuchowego
Application of combine stress and ground borne vibration monitoring system for measurements of dynamic impacts induced by explosives detonation
Autorzy:
Biessikirski, A.
Powiązania:
https://bibliotekanauki.pl/articles/166100.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Górnictwa
Tematy:
drgania parasejsmiczne
tensometria elektrooporowa
roboty strzałowe
ground borne vibrations
strain gauge
blasting works
Opis:
W pracy przedstawiono zastosowanie spójnego systemu parasejsmiczno-tensometrycznego do pomiaru wpływów dynamicznych wzbudzanych robotami strzałowymi w zakresie niższych wartości częstotliwości. Przedstawiono opracowaną metodykę pomiaru oraz uzyskane przebiegi drgań i naprężeń w warunkach laboratoryjnych. Na podstawie analiz Matching Pursuit (MP) przeprowadzono badania struktury czasowo-częstotliwościowej, których celem było określenie czasów występowania PPV, maksymalnego naprężenia chwilowego oraz uzyskanych wartości energii dla każdej ze składowych. Na podstawie uzyskanych wyników zaobserwowano zależność pomiędzy przebiegami prędkości drgań a wyznaczonymi naprężeniami w całej dziedzinie czasu. Ponadto, otrzymane rezultaty dla analiz czasowo-częstotliwościowych przeprowadzonych na podstawie zarejestrowanych wartości drgań oraz odkształceń wzbudzonych detonacją materiału wybuchowego w skali laboratoryjnej potwierdziły bezpośrednią zależność pomiędzy PPV a maksymalnymi naprężeniami chwilowymi na każdej ze składowych.
This paper presents the combine ground borne vibration and stress analysis measurement system. The methodology and results of the research were included. A detailed analysis in the time-frequency domain was obtained by the Matching Pursuit (MP) analysis. The MP methodology allowed to determine the occurrence of PPV and the maximum stress energy in time domain on each axis. Based on the obtained results the relation between ground – borne vibration velocity and induced stress in the concrete structure was observed in the whole time domain. Furthermore, the results of the analysis in the time – frequency domain obtained from the measured ground – borne vibration velocity and strains which were induced by blasting works on a laboratory scale, confirmed the direct relation between PPV and maximum stress at each axis.
Źródło:
Przegląd Górniczy; 2017, 73, 3; 42-49
0033-216X
Pojawia się w:
Przegląd Górniczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wytrzymałość cięgien nośnych górniczego naczynia wydobywczego
The strength of rods bearing elements in conveyances
Autorzy:
Wolny, S.
Badura, S.
Powiązania:
https://bibliotekanauki.pl/articles/951609.pdf
Data publikacji:
2017
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
skip górniczy
naprężenia
tensometria
trwałość zmęczeniowa
conveyances
tension rod
strain gauge
fatigue life
Opis:
Analiza okresowych badań skipów i klatek eksploatowanych w szybach jednej z kopalń wykazała że większość zarejestrowanych uszkodzeń elementów nośnych naczyń wydobywczych to pęknięcia o charakterze zmęczeniowym. Celem wyeliminowania przyczyn powstawania uszkodzeń oraz zwiększenia trwałości naczyń wydobywczych, niezbędnym będzie prawdopodobnie wykonanie rekonstrukcji tych fragmentów naczyń, w których uszkodzenia te występują. Aby rekonstrukcja przyniosła oczekiwane rezultaty niezbędne jest poznanie przyczyn będących źródłem powstających pęknięć. Dlatego postanowiono przeprowadzić pomiary, których wyniki umożliwiłyby wyznaczenia wartości obciążeń cięgien, a w dalszej kolejności ocenę ich wytrzymałości i trwałości. Wykonana analiza trwałości zmęczeniowej cięgien naczynia wydobywczego, wskazuje na możliwość rozwoju pęknięć zmęczeniowych w najbardziej wytężonych obszarach konstrukcji, w krótkiej perspektywie czasowej.
Analysis of periodic tests conveyances and cage operated shafts in one of the mines revealed that most of the failures recorded in load-bearing elements in conveyances, is fatigue cracks. In order to eliminate the causes formation of damage and increased durability in conveyances, necessary will probably perform the reconstruction of the fragments conveyances in which the damage they are. To reconstruction brought the expected results, it is necessary to know the reasons being the source of emerging cracks. Therefore it was decided to carry out measurements the results of which allow you to determine the values of loads and a further assessment of their strength and durability. The analysis of fatigue life rods-bearing elements in conveyances it indicates the possibility of the development of fatigue cracks in the most intensive areas of the construction, in the short term.
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2017, 64, 2/I; 149-158
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and modeling of an exoskeleton torque sensor
Autorzy:
Herbin, P.
Powiązania:
https://bibliotekanauki.pl/articles/135222.pdf
Data publikacji:
2017
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
exoskeleton
torque sensor
FEM analysis
closed loop cable conduit system
strain gauge
wearable robots
Opis:
Controlling the upper limb with force feedback requires the continuous measurement of multiple values, so it is necessary to use a specific measuring system. The position of the joints and the torque produced by the drives are the basic feedbacks necessary for control. Measurement of the joint positions does not cause complications, while measurement of the driving torque is much more complex. This article describes the methods of implementing an exoskeleton drive system through a closed loop conduit system based on Bowden cables, and the integration of a torque sensor within the wheel of the exoskeleton. The integration of the sensor within a mechanical part of the construction of the exoskeleton is the main advantage of the developed sensor because it does not affect the dynamics of the exoskeleton. This article presents the process of designing, calibrating and validating the proposed link wheel torque sensor.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2017, 51 (123); 89-94
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 24

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