Tiberiu Butnaru - Academia.edu (original) (raw)

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Papers by Tiberiu Butnaru

Research paper thumbnail of An approach for teaching mechanisms using haptic systems

This paper presents a methodology and a prototype system for teaching mechanisms in mechanical en... more This paper presents a methodology and a prototype system for teaching mechanisms in mechanical engineering courses, by using haptic devices. The paper begins with the presentation of an experimental study on using generic haptic devices for simulation of mechanism. Based on the results of the conducted study a custom haptic system with 1 DOF was developed. Afterwards it is presented the proposed methodology, which integrates the haptic device developed for the specific case of articulated mechanisms. In order to increase the realism of the simulation, the virtual mechanism model is co-located with the user's real hand using augmented reality techniques and see-through featured head mounted display. Therefore, the mechanical system used for the experiments is composed of one or more real and virtual elements and joints (for example a crank linked to a torque controlled electrical motor). The software, hardware and methodology, as well as the results are described in detail. The advantage of this system is the use of inexpensive haptic equipment for intuitive learning of the simulation of mechanisms.

Research paper thumbnail of Haptic interaction with virtual mechanical systems

Abstract1 -In this paper some possible solutions for interaction with virtual mechanical systems ... more Abstract1 -In this paper some possible solutions for interaction with virtual mechanical systems are presented. For the purpose of manipulating and interaction with mechanical systems in a realistic manner various haptic devices can be used. To assess the added value of the interaction the authors conducted a series of experiments involving multimodal interaction. Three possible cases and applications are presented: (i) when the user is interacting with a completely virtual mechanical system -for this a desktop virtual reality system was used including a PHANToM® haptic device , (ii) when the user is manipulating one element of the mechanical system in a CAVE-like visualization system using the stringbased SPIDAR haptic device, and (iii) when the user is interacting with one part of a mechanism (the mechanical system being composed by one or more real and virtual elements and joints -using augmented reality techniques and see-through featured head mounted display): a crank linked to a torque controlled electrical motor. The research showed the difficulties when trying to interact with a virtual mechanism using haptic feedback.

Research paper thumbnail of Manipulation of Mechanisms in Virtual Environment

Product Engineering, 2008

In the last years, Virtual Reality (VR) became a technology with mature developed interaction mod... more In the last years, Virtual Reality (VR) became a technology with mature developed interaction modalities that have been used in a series of successful industrial applications. Nowadays, a wide range of devices are available on the market eg CAVE systems, reality theatres, ...

Research paper thumbnail of A Wired Haptic System for Multimodal VR Interaction

Product Engineering, 2008

Virtual Reality (VR) technology includes nowadays a wide range of commercially available devices ... more Virtual Reality (VR) technology includes nowadays a wide range of commercially available devices eg CAVE systems, reality theatres, power walls, holobenches, individual immersive systems, as well as mixed reality technologies, haptic devices and speech systems. Among the VR ...

Research paper thumbnail of Mobile Robot System Controlled Through Mobile Communications

Product Engineering, 2005

A relatively new research direction in mobile robotics concerns the communication technology for ... more A relatively new research direction in mobile robotics concerns the communication technology for the control mobile robots in conjunction with other devices or between a team of mobile robots. This paper describes an approach for the remote control of a mobile robot using Bluetooth communication. Aspects regarding Bluetooth technology, architecture and components of the mobile robot developed are presented. Software for Bluetooth communication and a virtual environment in which the operator may create a path for robot are also presented.

Research paper thumbnail of An approach for teaching mechanisms using haptic systems

icvl.eu

This paper presents a methodology and a prototype system for teaching mechanisms in mechanical en... more This paper presents a methodology and a prototype system for teaching mechanisms in mechanical engineering courses, by using haptic devices. The paper begins with the presentation of an experimental study on using generic haptic devices for ...

Research paper thumbnail of Manipulation of Mechanisms in Virtual Environment

Product Engineering, 2008

In the last years, Virtual Reality (VR) became a technology with mature developed interaction mod... more In the last years, Virtual Reality (VR) became a technology with mature developed interaction modalities that have been used in a series of successful industrial applications. Nowadays, a wide range of devices are available on the market eg CAVE systems, reality theatres, ...

Research paper thumbnail of An approach for teaching mechanisms using haptic systems

This paper presents a methodology and a prototype system for teaching mechanisms in mechanical en... more This paper presents a methodology and a prototype system for teaching mechanisms in mechanical engineering courses, by using haptic devices. The paper begins with the presentation of an experimental study on using generic haptic devices for simulation of mechanism. Based on the results of the conducted study a custom haptic system with 1 DOF was developed. Afterwards it is presented the proposed methodology, which integrates the haptic device developed for the specific case of articulated mechanisms. In order to increase the realism of the simulation, the virtual mechanism model is co-located with the user's real hand using augmented reality techniques and see-through featured head mounted display. Therefore, the mechanical system used for the experiments is composed of one or more real and virtual elements and joints (for example a crank linked to a torque controlled electrical motor). The software, hardware and methodology, as well as the results are described in detail. The advantage of this system is the use of inexpensive haptic equipment for intuitive learning of the simulation of mechanisms.

Research paper thumbnail of Haptic interaction with virtual mechanical systems

Abstract1 -In this paper some possible solutions for interaction with virtual mechanical systems ... more Abstract1 -In this paper some possible solutions for interaction with virtual mechanical systems are presented. For the purpose of manipulating and interaction with mechanical systems in a realistic manner various haptic devices can be used. To assess the added value of the interaction the authors conducted a series of experiments involving multimodal interaction. Three possible cases and applications are presented: (i) when the user is interacting with a completely virtual mechanical system -for this a desktop virtual reality system was used including a PHANToM® haptic device , (ii) when the user is manipulating one element of the mechanical system in a CAVE-like visualization system using the stringbased SPIDAR haptic device, and (iii) when the user is interacting with one part of a mechanism (the mechanical system being composed by one or more real and virtual elements and joints -using augmented reality techniques and see-through featured head mounted display): a crank linked to a torque controlled electrical motor. The research showed the difficulties when trying to interact with a virtual mechanism using haptic feedback.

Research paper thumbnail of Manipulation of Mechanisms in Virtual Environment

Product Engineering, 2008

In the last years, Virtual Reality (VR) became a technology with mature developed interaction mod... more In the last years, Virtual Reality (VR) became a technology with mature developed interaction modalities that have been used in a series of successful industrial applications. Nowadays, a wide range of devices are available on the market eg CAVE systems, reality theatres, ...

Research paper thumbnail of A Wired Haptic System for Multimodal VR Interaction

Product Engineering, 2008

Virtual Reality (VR) technology includes nowadays a wide range of commercially available devices ... more Virtual Reality (VR) technology includes nowadays a wide range of commercially available devices eg CAVE systems, reality theatres, power walls, holobenches, individual immersive systems, as well as mixed reality technologies, haptic devices and speech systems. Among the VR ...

Research paper thumbnail of Mobile Robot System Controlled Through Mobile Communications

Product Engineering, 2005

A relatively new research direction in mobile robotics concerns the communication technology for ... more A relatively new research direction in mobile robotics concerns the communication technology for the control mobile robots in conjunction with other devices or between a team of mobile robots. This paper describes an approach for the remote control of a mobile robot using Bluetooth communication. Aspects regarding Bluetooth technology, architecture and components of the mobile robot developed are presented. Software for Bluetooth communication and a virtual environment in which the operator may create a path for robot are also presented.

Research paper thumbnail of An approach for teaching mechanisms using haptic systems

icvl.eu

This paper presents a methodology and a prototype system for teaching mechanisms in mechanical en... more This paper presents a methodology and a prototype system for teaching mechanisms in mechanical engineering courses, by using haptic devices. The paper begins with the presentation of an experimental study on using generic haptic devices for ...

Research paper thumbnail of Manipulation of Mechanisms in Virtual Environment

Product Engineering, 2008

In the last years, Virtual Reality (VR) became a technology with mature developed interaction mod... more In the last years, Virtual Reality (VR) became a technology with mature developed interaction modalities that have been used in a series of successful industrial applications. Nowadays, a wide range of devices are available on the market eg CAVE systems, reality theatres, ...