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The whole world has become faster than ever before. The demand and variety in consumer industry has increased phenomenally and is expected to further grow more. The market size is big and most production processes are also automated and have sufficient capacities. The manufacturers in competition are in a haste to launch newer and improved products but the product form development process is manual...
In the paper the simulation of the error in shaping surfaces with double curvature designed with the aid of Laiming's modified method is carried out. The effect of cutting force for the mechanism of parallel structure-hexapod is considered.
This paper reports the method for the simulation of a rated machinable surface in a machined thin-walled part with a small angle of taper. The procedure for the simulation of a generating surface in the compound milling cutters set equipped with replaceable polyhedral plates within the limits of the creation of the procedure for their modeling is shown.
When rolling with automated profile control is introduced at the plate mill, it imposes strict requirements to accuracy of automated gauge control. The structure of the Hydraulic Gap Control (HGC) position controller of the 5,000 mm mill is considered, it includes a fast proportional control channel and a relatively slow channel of integral position regulation. The paper provides dependencies for...
The aim of the research is to determine the mechanism of distribution of the external load between the rolling elements in radial-thrust and thrust-radial bearings under the action of the combined load. In article is given the mathematical model which allows defining for different operating conditions the maximum load on the balls of bearing and the change of load during operation of the bearing....
The EU funded project RobLog recently developed a system able to autonomously unload coffee sacks from a standard container. Being the first of its kind, a further development is needed in order for the system to be competitive against manual labor. Financing this development entails a risk, hence a justified skepticism, which can be overcome by the longsighted view of the existing market potential...
We are witnessing a considerable amount of research work related to data center and cloud infrastructures but evaluations are often limited to small-scale scenarios as very few researchers have access to a real infrastructure to confront their ideas to reality. In this demo we will reveal our experiment automation tool, DiG (Data centers in the Grid), which explicitly allocates physical resources...
Traditionally, direct weighting method is adopted in the calculation of price index in a region. Under the online shopping environment, there are significant differences in consumer spending in different E-commerce enterprises, because the business scope, the main commodities, and the target consumers vary a lot in different enterprises. If the direct weighting method is adopted, the price index of...
Product lifecycles are getting increasingly shorter, but the lifecycles of industrial automation systems remain stable. Since future requirements for the industrial automation systems made by the market are often unknown at the beginning of the planning process, industrial automation systems have to be adaptable at later times. In addition, the efforts of planning should be reduced continuously without...
In this paper, an optimal control method to non-prehensile manipulation control by two cooperative arms is proposed. In details, based on the dynamic model of the two-rigid-link object, an approximate model is derived. According to the obtained model, an optimal regulator is designed to realize the holding motion of two cooperative arms which is used to keep the two-rigid-link object stable on the...
A novel fault diagnose method is presented for the nonlinear systems with coupled fault and disturbance via adaptive observer technique. Residual matrix is used in this paper to describe the values of unknown inputs. Instead of adding robustness on the estimate states, this novel observer structure focuses on eliminating the disturbance signal on the residual matrix by using vector unitization so...
The main purpose of this article is to build a general platform for Unmanned Aerial Vehicle (UAV) simulation especially for vision algorithms. This general simulation platform can also connect to realistic UAVs for further tests. The platform enables UAVs controlled by a variety of advanced vision algorithms to accomplish certain tasks. Unlike the previous simulation systems, which can only achieve...
Hardware Trojans in Integrated Circuits (ICs) can modify their functionality or leak sensitive information. In this study, we apply Fully Homomorphic Encryption (FHE) to prevent the hardware Trojans implantation. ICs cannot access to real information of inputs directly but encrypted information of them from trusted hardwares. In this way, Trojans embedded in the ICs will not obtain any useful information...
Unmanned Aerial Vehicles (UAVs) is a kind of aircraft performing certain intelligence without pilot. To fulfill complex and practical tasks, accurate state estimation is an essential subject of UAVs. However, UAV is easy to be lost and hardly to be localized again in the unknown environments due to low features and strong flexibility in the previous SLAM system. In this paper, a rectification strategy...
Through manipulating the external capacitor or external classical microwave impulse, the coupling between superconducting qubits and cavity can be manipulated, the entanglement effect between field modes can be enhanced and the decoherence effect can be effectively suppressed. Further investigations indicate that, the time evolution of the quantum entanglement between field modes is always accompanied...
In this paper a concept of application of polynomial matrix σ-inverse in multivariable state-space perfect control is presented. The new inverse is derived from perfect control of systems described by the input-output approach. Rather surprisingly, the σ-inverse clearly outperforms some other inverses of nonsquare parameter matrices, including the classical minimumnorm right one. A minimum-energy...
UAVs are used in several remote applications. While performing a mission, electro-mechanical faults can occur which requires the UAVs to land quickly and safely. Landing in emergency conditions is a time critical problem, where, the UAV needs to find a landing site and plan a path to the selected site that satisfies some safety criterion in a given time. In this paper, we use terrain information from...
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