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Today the design and construction process of a naval vehicle, with special formal and performance characteristics, involves a number of operators that has been increasing considerably in recent decades, and can be correlated with its dimensional and typological growth. At the same time we are witnessing a new design approach, where the possibility given by the computer contribution to represent processes...
Real time data associated with the Building Information Model plays a critical role in the interpretation of the built environment, which is particularly relevant as an increasing number of education facilities and institutions promote sustainable engineering practices and monitoring data available to the public. However, it is challenging for non-technical audiences to fully comprehend or use information...
In an increasing number of aggressive enterprise world, “time to market” concerning products has come to be a solution element because of enterprise success. There are exceptional techniques so expect layout mistakes or open products concerning the need between much less time. Among the most used methodologies in the design and setting about stability the requirements, Quality Function Deployment...
The primary goal of this research is to apply principles of ergonomics using virtual reality to develop an integrated approach to provide interactive designing and evaluating of production in a manufacturing cell. One of the most common parts of every cell is storage unit, while, studies have been done on it is not sufficiently considered the importance of the design based on human labor ergonomic...
The paper examines the effect of the recent VR technologies on consumers behaviour providing guidelines to design a rich and immersive environment that is able to deliver high-impact and memorable experience and engage audiences and potential consumers anytime and anywhere. In order to study the impact, firstly, the paper has identified and described the technological characteristics of VR in terms...
Modelling of interactions of soft tissues with surgical tools is a fundamental issue in interactive surgical simulation. This paper presents a new methodology for modelling of nonlinear characteristics of soft tissue deformation for interactive surgical simulation. The proposed methodology formulates soft tissue deformation as a process of energy propagation; the mechanical load applied to soft tissues...
The finite element model of sliding wear is established by using finite element theory according to Archard wear model. The general program is developed by ANSYS parametric design language. The liner of bearing average ware rate is 9.75 $$\times $$ × 10 $$^{-7}$$ - 7 mm $$^{3}$$ 3 /(Nm) by pin on disc tester. Then the wear analysis of self-lubricating joint bearing liner is carried...
In this paper, we proposed the problem of optimizing the reliability of a series–parallel system in fuzzy environment and also consider entropy as an additional objective function. Taking into account the resources (such as weight, volume, cost etc.) as generalized trapezoidal fuzzy number and considering vagueness of judgements of the decision maker, an Interactive fuzzy multiple-objective decision...
Selection of the tool and manufacturing equipment are the important phases of the process design in metal forming industry, as the tool development is very vital task in metal forming. The present work is focused on design and development of new combination tool used to perform three operations simultaneously on the hollow rod. The rod is used to connect the recliners of an automotive seat. A combination...
Road traffic accidents are a leading cause of deaths globally and represent the main cause of death among 15–29 years olds (World Health Organization in Global status report on road safety 2015, World Health Organization, Geneva, 2015). Efforts have been made to develop and improve advanced driver assistance systems as to provide better quality of driving and reduce the number of traffic accidents...
Interactive and integrated design and manufacturing can be a useful strategy for designers to reach the efficient design through the cognitive or physical interactions. Process tolerance design is a key tool in the integrated design and manufacturing to reach a product with high quality and low cost. Since the optimal tolerance allocation involves several aspects of the design, manufacturing and quality...
Shape-based design activities analyse specific shapes to highlight functions that products shaped that way could implement. These design activities encompass a clearly interactive approach; designers have direct, personal confrontations with shapes. It is not to say that the effectiveness of these interactions depends on the way the shapes, along with the environments where their evaluations take...
The diffusion of design tools suitable for regular lattice structures was recently stimulated by the spread of additive manufacturing technologies that enable the fabrication of complex geometries, exceeding the limits of traditional manufacturing methods. Fillet radii play a fundamental role in the design of lattice materials, reducing the stress concentration and improving fatigue life. However,...
Among the high speed crafts to be used as ferries, hydrofoils are considered the best solution to obtain high speeds and to reduce ship motions with the consequent comfort for passengers; in fact as long as the wave heights allow the hydrofoils to fly above the sea level the floating hulls are not effected by the sea conditions. It is important to underline that, in order to achieve the required performances,...
Computer aided technologies (CAT) are becoming an indispensable instrument to design, improve and manufacture new products and services. Digital human modelling (DHM) systems allow to simulate the Human-artifact interface and to evaluate, in early step of design process, the ergonomic performances of new products or workplaces. In particular, for products that have to be used in a “constrained” workplace,...
The effect of different surface texture micro-elements on the service life of molds in hardened steel molds has been systematically explored by establishing a four-right-angle bending simulation model. The temperature field, wear depth, load distribution, stress and strain distribution and other surface conditions were analyzed and studied, and then identified the poor service conditions in the region...
Navigation is moving inside a virtual environment to reach to a desired object or location. This paper presents a new egocentric navigation technique for exploring a virtual scene by tracking the 3DOF moves of index finger along x, y and z axis. With image processing at backend, the finger’s position in 2D image frame is traced dynamically to travel inside the designed frontend 3D scene. Mimicking...
The concept of smart factory includes collection and distribution of information in real time to help human operators in their work. Machine setup instructions are notable examples of such information. This paper advocates the use of augmented reality (AR) to present such information addressing in an intuitive manner the demonstration of setup tasks on the variety of machine tools that are available...
Complex market dynamics force enterprises to face new challenges. A manufacturing or assembly system has to create products based on customer requirements at the lowest possible price and to react rapidly to external changes such as market or political trends. In this regard, flexible and rapid changeable manufacturing and assembly systems are promising solutions to overcome these issues. In the past,...
With the development of additive manufacturing technologies, designers are being offered new opportunities that are changing their usual design rules. The ability to create increasingly complex shapes constitutes the main opening. The complexity achieved makes it possible to obtain lightweight parts while maintaining high mechanical performance. As a result, design methods have to be adapted. Most...
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