Recent Patents on Wall Climbing Robot with Negative Pressure Adsorption

2019 ◽  
Vol 13 (3) ◽  
pp. 201-211
Author(s):  
Dedong Tang
Keyword(s):  
Negative Pressure ◽  
Manufacturing Industry ◽  
High Efficiency ◽  
Low Cost ◽  
Nuclear Industry ◽  
Stable Operation ◽  
Human Beings ◽  
Climbing Robot ◽  
Fire Control ◽  
Human Labor

Background: The wall climbing robot is an automatic mechanical device capable of being adsorbed on the wall surface and carrying out various predetermined work. Compared with human labor, the wall climbing robot has the advantages of high efficiency, low cost and stable operation quality. It can replace human beings to accomplish various dangerous work, reduce the risk and labor intensity of high-altitude operation, and greatly promote the improvement of productivity. At present, wall climbing robot has been widely used in the construction industry, fire control, nuclear industry, petrochemical industry and manufacturing industry. Objective: I will review related patents of wall climbing robot with negative pressure adsorption and illustrate their structure and working principle. The results of the analysis can provide some meaningful reference for the optimal design of this kind of robot. Methods: Based on the comparative analysis for the latest patents related to wall climbing robot with negative pressure adsorption, the key problem and future development of the wall climbing robot are put forward. Results: The patents of the wall climbing robot with negative pressure adsorption are classified in the paper. Studies show that remarkable improvements have been achieved in the invention on the climbing robot. Conclusion: In the tomorrow, the adsorption technology, optimization of moving mode, structure miniaturization and intelligent control should be further studied.

New Type of Distributed Biomass Combustion Device Necessity and Feasibility in China

2011 ◽  
Vol 383-390 ◽  
pp. 4013-4016
Author(s):  
Chang Le Pang ◽  
Li Chen ◽  
Ren Jie Dong
Keyword(s):  
Rural Areas ◽  
High Efficiency ◽  
Low Cost ◽  
Biomass Combustion ◽  
Combustion System ◽  
Human Beings ◽  
New Type ◽  
Energy Products ◽  
The Ideal ◽  
Commercial Energy

Worldwide changes in climate and environment forced us human beings to seek for alternatives to replace commercial energy products like coal and petroleum. However, there have some difficulties to promote commercial energy products in China’s rural areas and newly urbanized areas. Biomass combustion system will become one of the ideal devices for such areas in a period of time. It is necessary to develop new types of biomass combustion system consisting of gasification or Semi-Gasification and combustion units so that it can provide high efficiency and low cost for household purposes.

Role of Non-Traditional Machining Equipment in Industry 4.0

2021 ◽  
pp. 203-214
Author(s):  
Tarun Kanti Jana
Keyword(s):  
Cognitive Abilities ◽  
Industry 4.0 ◽  
Manufacturing Industry ◽  
Dynamic Capabilities ◽  
Low Cost ◽  
Human Beings ◽  
Agent Based ◽  
Multi Agent ◽  
Conventional Machining

The manufacturing industry is undergoing drastic changes owing to a steep rise in business competition and growing complexities in other business perspectives. The highly turbulent market is characterized by ever-increasing mass customization, wide volume-mix, shorter lead time, and low cost, which along with varieties of internal disturbances have complicated the business stability. The multi-agent-based systems comprising of fundamental entities called agents and characterized by autonomy, cooperation, and self-organizing abilities have already made remarkable breakthrough to deal with the challenges through increased robustness, scalability, and enhanced adaptability through their dynamic capabilities. The decision-making ability of the agents can be augmented if equipped with cognitive abilities like that of human beings. The chapter discusses cyber-physical production system (CPPS) to realize cognitive manufacturing in non-conventional machining environments.

scholarly journals Design of permanent magnetic wheel-type adhesion-locomotion system for water-jetting wall-climbing robot

2018 ◽  
Vol 10 (7) ◽  
pp. 168781401878737 ◽  
Author(s):  
Wei Song ◽  
Hongjian Jiang ◽  
Tao Wang ◽  
Daxiong Ji ◽  
Shiqiang Zhu
Keyword(s):  
High Efficiency ◽  
Adhesion Force ◽  
Low Cost ◽  
Air Gap ◽  
Operating Efficiency ◽  
Climbing Robot ◽  
Magnet System ◽  
Adhesion System ◽  
Increase Service Life ◽  
Steel Surfaces

Regular surface-maintenances are necessary for high structures to increase service life. The traditional manual operation has shortcomings like limited maneuverability, poor operating quality, low operating efficiency, and high risk of physical harm, which makes it urgent to develop wall-climbing robot for carrying out surface-maintenances of high structures with high efficiency, low cost, and good protection of operators. In this article, we have developed a wheeled wall-climbing robot that uses a permanent magnet adhesion system to climb on large steel surfaces. Wheel traction to avoid slippage is increased by using inflated rubber tire while maintaining a desired air gap for the magnet system. Research is directed at designing a lightweight magnet system to provide an optimum adhesion force and at determining required tire pressures to maintain a specified air gap between the magnets and the surface.

scholarly journals A Lightweight Application for Reading Digital Measurement and Inputting Condition Assessment in Manufacturing Industry

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jung-Sing Jwo ◽  
Ching-Sheng Lin ◽  
Cheng-Hsiung Lee ◽  
Chenhao Wang
Keyword(s):  
Manufacturing Industry ◽  
Low Cost ◽  
Numerical Data ◽  
Condition Assessment ◽  
Wearable Devices ◽  
High Accuracy ◽  
Digital Measurement ◽  
Digital Display ◽  
Working Process ◽  
Human Labor

There is a vast need for the use of digital display instruments in the manufacturing industry due to the simple operation and high precision. In addition to the numerical data acquisition, it is usually necessary to input additional text for the condition assessment as well. However, since most of these measure instruments do not provide any interfaces for users to access the values and it often lacks proper devices to input the text during the working process, these two tasks are highly human intensive under current conditions. In order to facilitate the smooth running of the work for operators, we propose a lightweight application which can be installed on smartphones or wearable devices using multidigit recognition and speech recognition techniques without changing too much of their workflow. The experimental results demonstrate that our approach can achieve high accuracy. Thus, the proposed solution can effectively resolve data input issues in the manufacturing sites, thereby reducing human labor, increasing productivity, and automating part of the process. Taking operators’ existing workflow into consideration for design can provide an application with an easy learning curve. Moreover, with the rapid and economical approach, companies can financially benefit from the development of this low-cost application, especially for small- and medium-sized enterprises.

Research on a Transonic Supercritical Carbon Dioxide Centrifugal Turbine

2019 ◽  
Vol 5 (4) ◽  
Author(s):  
Zehai Yang ◽  
Dan Luo ◽  
Diangui Huang
Keyword(s):  
Carbon Dioxide ◽  
Numerical Simulation ◽  
Performance Analysis ◽  
Supercritical Carbon Dioxide ◽  
Energy Conversion ◽  
High Efficiency ◽  
Low Cost ◽  
Thermodynamic Cycle ◽  
Stable Operation ◽  
Supercritical Carbon

Recently, the supercritical carbon dioxide Brayton (SCO2) cycle gained a lot of attention for its application to next-generation nuclear reactors. Turbine is the key component of the energy conversion in the thermodynamic cycle. Transonic centrifugal turbine has advantages of compatibility of aerodynamic and geometric, low cost, high power density, and high efficiency; therefore, it has opportunity to become the main energy conversion equipment in the future. In this paper, a transonic nozzle and its corresponding rotor cascade of the single-stage centrifugal turbine were designed. In addition, the three-dimensional (3D) numerical simulation and performance analysis were conducted. The numerical simulation results show that the predicted flow field is as expected and the aerodynamic parameters are in good agreement with one-dimensional (1D) design. Meanwhile, the off-design performance analysis shows that the transonic centrifugal turbine stage has wide stable operation range and strong load adaptability. Therefore, it can be concluded that the proposed turbine blade has good performance characteristics.

scholarly journals Talking about the significance of optimizing the condition evaluation standard of small power grid equipment such as voltage transformer

2020 ◽  
Vol 185 ◽  
pp. 01049
Author(s):  
Suya Li ◽  
Cong Zhao ◽  
Yanwei Dong ◽  
Songyuan Li ◽  
Nan Li ◽  
...  
Keyword(s):  
Power Systems ◽  
High Efficiency ◽  
Low Cost ◽  
Power Grid ◽  
Stable Operation ◽  
Voltage Transformer ◽  
Evaluation Standards ◽  
Evaluation Standard ◽  
State Evaluation ◽  
Condition Evaluation

Power grid equipment condition evaluation and condition maintenance is a kind of operation and maintenance means with strong reliability, low cost and high efficiency in power grid equipment operation management. At present, when carrying out state assessment of power grid equipment such as, grounding devices, capacitors, reactors, because of the features of large number, frequent failures, complex and changeable operating environment, etc, existing state evaluation standards have obvious deficiencies, which makes it difficult to meet management needs. Optimizing state evaluation standards, formulating scientific and effective state evaluation guidelines are of great significance for improving equipment safety and ensuring safe and stable operation of power systems.

scholarly journals Research on Dynamic Facility Layout Problem of Manufacturing Unit Considering Human Factors

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Jinying Li ◽  
Xin Tan ◽  
Jinchao Li
Keyword(s):  
Industry 4.0 ◽  
High Efficiency ◽  
Low Cost ◽  
Facility Layout ◽  
Mathematic Model ◽  
Human Beings ◽  
Human Machine Interaction ◽  
Bee Colony ◽  
Penalty Factor ◽  
Adaptive Penalty

As many said, industry 4.0 is an epoch-making revolution which brought the manufacturing market much faster changes and severer competitions. As an important part of the manufacturing system, facility layout has direct impact on business benefit; at the same time, despite the intelligent factory, intelligent production has its own characteristics. However, there is one point on which industry and academia have basically formed a consensus: it is not true that industry 4.0 does not need human beings; on the contrary, human initiative plays an unabated role in the development of industry 4.0. This paper will focus on the dynamic facility layout of the manufacturing unit. Based on the system above and the traditional optimization model, a mathematic model is built to find the best solution combining safety, sustainability, high efficiency, and low cost. And penalty function with adaptive penalty factor and advanced artificial bee colony algorithm is used to solve the constrained model. In the end, by studying few cases, the model is proved to be effective in both efficiency improvement and the implementation of safe and comfort human-machine interaction.

Study on High Speed Cutting Technology for Green Manufacturing

2011 ◽  
Vol 305 ◽  
pp. 25-30 ◽  
Author(s):  
Xiao Jun Wang ◽  
Wen Hui Yue ◽  
Zi Qiang Han
Keyword(s):  
High Speed ◽  
Manufacturing Industry ◽  
High Efficiency ◽  
Low Cost ◽  
Cutting Temperature ◽  
Green Manufacturing ◽  
Processing Parameters ◽  
High Speed Machining ◽  
High Speed Cutting ◽  
Manufacturing Technologies

As a sustainable model of modern manufacturing industry, green manufacturing is one of the essential solutions of the manufacturing environment pollution problems. Green cutting technology is the base and key of green manufacturing and will be the inevitable trend of cutting technology. High speed machining technology is a kind of the advanced manufacturing technologies which have superiorities as low cost, high efficiency, good processing quality and are suitable for machining thin walled workpieces and difficult-to-cut materials, and the relative problem has attracted scholars' attention from all over the world. From the perspective of green manufacturing, research results of high speed machining hardened steels are reviewed, including cutting force, cutting temperature, selection and optimization of processing parameters and machining quality, and conclude that high speed cutting is one of the key technologies in implementing green manufacturing and cleaner production. Finally, its future works of the research are discussed.

Research on Negative Pressure Wall Climbing Absorption System Based on SMA

2013 ◽  
Vol 423-426 ◽  
pp. 1790-1793
Author(s):  
Fang Dai ◽  
Gao Hua Liao
Keyword(s):  
Power Consumption ◽  
Negative Pressure ◽  
High Efficiency ◽  
Experimental Result ◽  
Utilization Rate ◽  
Climbing Robot ◽  
Absorption System ◽  
Working Pressure ◽  
Low Efficiency ◽  
The Relationship

This paper presents a negative pressure absorption system of climbing robots. Based on the utilization rate of the negative pressure climbing robot, the impacts of locomotion system adsorption forces allocation were studied. In order to solve the problems of sliding wall climbing robot's great power consumption and low efficiency design, a negative pressure generator of the low power consumption and high efficiency was investigated. After the analysis of robot's pressure needed and flow leakage fluid dynamics, the relationship between negative working pressure was established.Through the thermo dynamic analysis of the component process of state changes in suctions flow field was described, and the principles of the adsorption system were revealed. The results show that negative pressure can be stably generated and the system realize firmly adsorbing on wall. The theoretical and experimental result of wall climbing robot contributes to further perfecting the performance of robot.

Influence of MBE Growth Conditions on Dislocation Densities of GaAs/Ge Epilayers Grown on Silicon Substrates

1985 ◽  
Vol 43 ◽  
pp. 364-365
Author(s):  
K.M. Hones ◽  
P. Sheldon ◽  
B.G. Yacobi ◽  
A. Mason
Keyword(s):  
High Efficiency ◽  
Lattice Mismatch ◽  
Low Cost ◽  
Growth Conditions ◽  
Nonradiative Recombination ◽  
Device Structure ◽  
Si Substrates ◽  
Transmission Electron ◽  
Dislocation Densities ◽  
Dislocation Type

There is increasing interest in growing epitaxial GaAs on Si substrates. Such a device structure would allow low-cost substrates to be used for high-efficiency cascade- junction solar cells. However, high-defect densities may result from the large lattice mismatch (∼4%) between the GaAs epilayer and the silicon substrate. These defects can act as nonradiative recombination centers that can degrade the optical and electrical properties of the epitaxially grown GaAs. For this reason, it is important to optimize epilayer growth conditions in order to minimize resulting dislocation densities. The purpose of this paper is to provide an indication of the quality of the epitaxially grown GaAs layers by using transmission electron microscopy (TEM) to examine dislocation type and density as a function of various growth conditions. In this study an intermediate Ge layer was used to avoid nucleation difficulties observed for GaAs growth directly on Si substrates. GaAs/Ge epilayers were grown by molecular beam epitaxy (MBE) on Si substrates in a manner similar to that described previously.

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