scholarly journals The Novel of Six axes Robotic Arm for Industrial Applications

2014 ◽  
Vol 3 (3) ◽  
Author(s):  
Rajendra R Aparnathi
Keyword(s):  
Industrial Applications ◽  
Robotic Arm ◽  
The Novel

scholarly journals UUX Evaluation of a Digitally Advanced Human–Machine Interface for Excavators

2020 ◽  
Vol 4 (3) ◽  
pp. 57
Author(s):  
Sebastian Lorenz ◽  
Jens R. Helmert ◽  
Ruben Anders ◽  
Christian Wölfel ◽  
Jens Krzywinski
Keyword(s):  
User Experience ◽  
User Interfaces ◽  
Quality Measurement ◽  
Industrial Applications ◽  
Human Machine Interface ◽  
The Novel ◽  
Task Load ◽  
System Usability Scale ◽  
Machine Interface ◽  
The Right

With the evaluation of a next-generation human–machine interface (HMI) concept for excavators, this study aims to discuss the HMI quality measurement based on usability and user experience (UUX) metrics. Regarding the digital transformation of construction sites, future work environments will have to be capable of presenting various complex visual data and enabling efficient and safe interactivity while working. The evaluated HMI focused on introducing a touch display-based interface, providing advanced operation functions and different interaction modalities. The assessment of UUX should show whether the novel HMI can be utilised to perform typical tasks (usability) and how it is accepted and assessed in terms of non-instrumental qualities (user experience, UX). Using the collected data, this article also aims to contribute to the general discussion about the role of UX beyond usability in industrial applications and deepen the understanding of non-instrumental qualities when it comes to user-oriented process and machine design. The exploratory study examines insights into the application of elaborated UUX measuring tools like the User Experience Questionnaire (UEQ) on the interaction with industrial goods accompanied by their rating with other tools, namely System Usability Scale (SUS), Intuitive Interaction Questionnaire (INTUI) and the National Aeronautics and Space Administration (NASA) Task Load Index (NASA-TLX). Four goals are pursued in this study. The first goal is to compare in-depth two different ways of interaction with the novel HMI—namely one by a control pad on the right joystick and one by touch. Therefore, a sample of 17 subjects in total was split into two groups and differences in UUX measures were tested. Secondly, the performances of both groups were tested over the course of trials to investigate possible differences in detail. The third goal is to interpret measures of usability and user experience against existing benchmark values. Fourth and finally, we use the data gathered to analyse correlations between measures of UUX. The results of our study show that the different ways of interaction did not impact any of the measures taken. In terms of detailed performance analysis, both groups yielded differences in terms of time per action, but not between the groups. The comparison of UUX measures with benchmark values yielded mixed results. The UUX measures show some relevant significant correlations. The participants mostly reported enjoying the use of the HMI concept, but several practical issues (e.g., efficiency) still need to be overcome. Once again, the study confirms the urge of user inclusion in product development. Especially in the course of digitalisation, as big scale advancements of systems and user interfaces bring uncertainty for many manufacturers regarding whether or how a feature should be integrated.

Nonlinear Bifurcation Analysis of a Single-DoF Model of a Robotic Arm Subject to Digital Position Control

2012 ◽  
Vol 8 (1) ◽  
Author(s):  
Giuseppe Habib ◽  
Giuseppe Rega ◽  
Gabor Stepan
Keyword(s):  
Center Manifold ◽  
Position Control ◽  
High Accuracy ◽  
Industrial Applications ◽  
Critical Parameters ◽  
Robotic Arm ◽  
Control Force ◽  
Local Center ◽  
The Stability ◽  
Stability Limits

Precision and stability in position control of robots are critical parameters in many industrial applications where high accuracy is needed. It is well known that digital effect is destabilizing and can cause instabilities. In this paper, we analyze a single DoF model of a robotic arm and we present the stability limits in the parameter space of the control gains. Furthermore we introduce a nonlinearity relative to the saturation of the control force in the model, reduce the dynamics of the nonlinear map to its local center manifold, study the bifurcation along the stability border and identify conditions under which a supercritical or subcritical bifurcation occurs. The obtained results explain some of the typical instabilities occurring in industrial applications. We verify the obtained results through numerical simulations.

scholarly journals Interoperability between OPC UA and oneM2M

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Salvatore Cavalieri ◽  
Salvatore Mulè
Keyword(s):  
Industry 4.0 ◽  
Industrial Applications ◽  
The Novel ◽  
Iot Devices

AbstractA key requirement of realizing the connected world featured by IoT is to ensure interoperability among different connected devices. Interoperability is also at the basis of the realization of the novel vision of Industry 4.0; a lot effort is put to make interoperable the interchange of information between industrial applications, also including IoT ecosystems. For this reason, during these last years, several approaches aimed to enhance interoperability between industrial applications and IoT appeared in the literature. In this paper an interoperability proposal is presented. It is based on the idea to realize interworking between the two standards considered among the reference ones in the industrial and IoT domains. They are the OPC UA for the industrial domain and oneM2M for the IoT. Interworking is realized in such a way to allow industrial applications based on OPC UA to acquire information coming from oneM2M-based IoT devices. The proposal allows an OPC UA Server to publish each piece of information produced by oneM2M-based IoT devices, so that this information may be consumed by industrial applications playing the OPC UA Client role.

scholarly journals Design of an Innovative Test Rig for Industrial Bearing Monitoring with Self-Balancing Layout

Machines ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 54
Author(s):  
Eugenio Brusa ◽  
Cristiana Delprete ◽  
Lorenzo Giorio ◽  
Luigi Gianpio Di Maggio ◽  
Vittorio Zanella
Keyword(s):  
Industrial Applications ◽  
The Novel ◽  
Axial Loads ◽  
Test Rig ◽  
System Failures ◽  
Novel Concept ◽  
Time Required ◽  
The Impact ◽  
Bearing Monitoring

The remote prognosis and diagnosis of bearings can prevent industrial system failures, but the availability of realistic experimental data, being as close as possible to those detected in industrial applications, is essential to validate the monitoring algorithms. In this paper, an innovative bearing test rig architecture is presented, based on the novel concept of “self-contained box”. The monitoring activity is applicable to a set of four middle-sized bearings simultaneously, while undergoing the independent application of radial and axial loads in order to simulate the behavior of the real industrial machinery. The impact of actions on the platform and supports is mitigated by the so-called “self-contained box” layout, leading to self-balancing of actions within the rotor system. Moreover, the high modularity of this innovative layout allows installing various sized bearings, just changing mechanical adapters. This leads to a reduction of cost as well as of system down-time required to change bearings. The test rig is equipped with suitable instrumentation to develop effective procedures and tools for in- and out-monitoring of the system. An initial characterization of the healthy system is presented.

Characterization of Multipoint Diffraction Strain Sensor (MISS)

2006 ◽  
Vol 326-328 ◽  
pp. 87-90
Author(s):  
S. Iqbal ◽  
Anand Krishna Asundi
Keyword(s):  
High Frequency ◽  
Strain Sensor ◽  
Ccd Camera ◽  
Industrial Applications ◽  
Body Tilt ◽  
The Novel ◽  
Multiple Points ◽  
The Individual ◽  
Micro Lens Array

A Multipoint Diffraction Strain Sensor (MISS) with the novel feature of simultaneous strain measurement at multiple points is characterized. Unlike conventional interferometry based systems, this patented sensor uses principles of diffraction to directly measure strain at large number of points. In this sensor, a high-frequency diffraction grating is illuminated by two symmetric laser beams and the diffracted beams are sampled on a CCD camera via a micro-lens array into an array of dots. The shift of the individual dots is sensed and strains or rigid body tilt are calculated directly. This novel technique is expected to be very valuable in numerous industrial applications.

A Dynamic Reactive Power Compensation Method of Super High-Power and High-Voltage Motor

2014 ◽  
Vol 602-605 ◽  
pp. 2828-2831 ◽  
Author(s):  
Yi Fei Wang ◽  
You Xin Yuan ◽  
Jing Chen ◽  
Qi Jian Cheng
Keyword(s):  
High Voltage ◽  
High Power ◽  
Reactive Power ◽  
Industrial Applications ◽  
Reactive Power Compensation ◽  
Compensation Method ◽  
The Novel ◽  
Parameter Setting ◽  
Compensation Device ◽  
Novel Design

According to the low power factor and low running efficiency, a dynamic reactive power compensation method of the super high-power and high-voltage motor is proposed in this paper. The following works have been done in the study: topology of the dynamic reactive power compensation device; principle of the dynamic reactive power compensation method; control system of the dynamic reactive power compensation device; implementation of the dynamic reactive power compensation method. The amount of reactive power compensation can be adjusted smoothly and dynamically in the process of the super high-power and high-voltage motor soft-starting. The research of this paper has laid a theoretical foundation for this compensator in industrial applications. The novel design is characterized by flexible parameter setting, excellent soft starting performance of the super high-power and high-voltage motor and bright prospect in application.

Feasibility of Internally Reinforced Thin-Walled Beams for Industrial Applications

2015 ◽  
Vol 775 ◽  
pp. 119-124 ◽  
Author(s):  
Hugo Miguel Silva ◽  
José Filipe Meireles
Keyword(s):  
Relative Difference ◽  
Industrial Applications ◽  
Sandwich Beams ◽  
The Novel ◽  
The Finite Element Method ◽  
Efficiency Parameter ◽  
Bending Stresses ◽  
Box Beams ◽  
Thin Walled ◽  
Better Than

In this work, several types of reinforcement geometries of hollow-box beams for industrial applications are compared. A novel type of sandwich beams under bending and torsion uncoupled loadings is proposed as the best solution of all those that were studied. For the comparative analysis of the solutions, the models are modelled by the Finite Element Method (FEM) using the commercial software ANSYS Mechanical APDL. The feasibility of the novel beams was assessed by comparing the stiffness behavior of the beams with simple hollow-box beams in terms of deflection. An efficiency parameter was defined in order to determine the relative difference in terms of deflection. It is found that the novel geometries represent a great improvement under bending loadings, better than under torsion loadings. Nevertheless, for bending and torsion combined loadings, if bending stresses are predominant, the beams can still be interesting for some applications, mainly those with mobile parts.

scholarly journals Red-Brown Pigmentation of Acidipropionibacterium jensenii Is Tied to Haemolytic Activity and cyl-Like Gene Cluster

2019 ◽  
Vol 7 (11) ◽  
pp. 512 ◽  
Author(s):  
Paulina Deptula ◽  
Iida Loivamaa ◽  
Olli-Pekka Smolander ◽  
Pia Laine ◽  
Richard J. Roberts ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Industrial Applications ◽  
Brown Spot ◽  
Whole Genome Sequence ◽  
Haemolytic Activity ◽  
The Novel ◽  
Negative Effects ◽  
Food Fermentation ◽  
Important Virulence Factor ◽  
Potential Risks

The novel Acidipropionibacterium genus encompasses species of industrial importance but also those associated with food spoilage. In particular, Acidipropionibacterium acidipropionici, Acidipropionibacterium thoenii, and Acidipropionibacterium jensenii play an important role in food fermentation, as biopreservatives, or as potential probiotics. Notably, A. jensenii and A. thoenii can cause brown spot defects in Swiss-type cheeses, which have been tied to the rhamnolipid pigment granadaene. In the pathogenic bacterium Streptococcus agalactiae, production of granadaene depends on the presence of a cyl gene cluster, an important virulence factor linked with haemolytic activity. Here, we show that the production of granadaene in pigmented Acidipropionibacterium, including A. jensenii, A. thoenii, and Acidipropionibacterium virtanenii, is tied to haemolytic activity and the presence of a cyl-like gene cluster. Furthermore, we propose a PCR-based test, which allows pinpointing acidipropionibacteria with the cyl-like gene cluster. Finally, we present the first two whole genome sequence analyses of the A. jensenii strains as well as testing phenotypic characteristics important for industrial applications. In conclusion, the present study sheds light on potential risks associated with the presence of pigmented Acidipropionibacterium strains in food fermentation. In addition, the results presented here provide ground for development of a quick and simple diagnostic test instrumental in avoiding potential negative effects of Acidipropionibacterium strains with haemolytic activity on food quality.

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