Papers by Keyword: Driving

Paper TitlePage

Authors: Zeng Qiang Cao, Qing Hua Qin
Abstract: Interference-fit fasteners are used in large numbers throughout aircraft structures. Conventional installation methods are driving fasteners into aperture using pneumatic or hydraulic tooling, installation damage always occurs using these methods. This paper introduces a new method of driving interference-fit fastener using stress wave, reports on a comparison of driving quality between stress wave driving and hydraulic force driving. The experiments completed by authors indicate that stress-wave method can drive the fasteners with larger interference which conventional installation method can not implement; stress wave driving method provides high installation quality and repeatable results compared with the conventional driving method; and stress wave driving method is convenient to be used. The experiments prove that the protuberant material produced by stress wave method is less than that of conventional installation methods, this is advantaged to improve the fatigue strength of joint.
1
Authors: Yu Hong Huang, Hua Jing Zheng, Quan Jiang, Zheng Ruan
Abstract: A full color 2.2″ passive matrix organic light-emitting diodes (OLEDs) with 128 (RGB) * 160 pixels was developed. The display features that driving circuit can transform 18 bits gray-scale data from a PC to the OLED panel via a DVI channel. The size of the pixel was 240μm 240μm, while that of mono sub-pixel is 190μm 45μm. The lifetime of panel was estimated over 5000h because of the use of dual-scan driving technology, and the power consumption of the display was 300mw about when the average luminance of panel reach 40cd/m2.
450
Authors: Chang Liu, Si Zhong Chen, Peng Peng Pei, Kun Zhang, Jie Bao
Abstract: indirect vision driving for Vehicle is a kind of technology which lets the driver gets correct road information in order to ensure normal driving with the use of the camera and displays. After introducing the ergonomic theory of driving fatigue and the development of driving fatigue detection at home and abroad, mainly use EEG to judge the driving fatigue level of indirect vision driving. The experiment results show that greater fatigue is brought to the driver on the condition of indirect vision driving compared with the direct vision driving.
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Authors: Daniel Scherer, Z. Yang, H. Hoffmann
Abstract: This paper provides general information about the qualification of driving as an on-demand manufacturing concept for the production of individualized sheet metal products. Driving allows the creation of almost any 2D or 3D geometry, but it is a highly interactive, manual production process. Due to the inevitable variations of the incremental forming process (mechanical properties, tribology, wear etc.) and the high number of forming steps, it cannot be automated by traditional approaches. At the Institute of Metal Forming and Casting (Technische Universitaet Muenchen) a kraftformer machine has been equipped with measuring and controlling instrumentation. An optical online measurement system is installed to detect any geometry deformation of the current work piece and to visualize the deviation between the actual and the stored reference geometry during the whole production process. This variance comparison is the first step for planning any following incremental forming actions based on acquired and/or learned knowledge. The second step is the integration of an industrial robot for work piece handling and the automation of the whole manufacturing process. The last step is the integration of neural networks to predict production strategies for any desired unique geometry.
795
Authors: Guan Qun Sun, Bin Rui Wang
Abstract: A fuzzy self-correction controller based on DSP (TMS320LF240) micro-controller was designed to solve the problem that traditional controller can’t meet the random disturbance parameters of reluctance motor having notable nonlinear. Parameters could be automatically adjusted and response is rapid. According to the demand that two windings provide electric power at the same time for switched reluctance motor (SR motor), the system adopted Mamdani model with two inputs, MAXMIN barycenter technique was used for judging manner. Fuzzy research table and driving software were designed. Experiment results with a 5.5KW SR motor illustrated that the four phases SRD with fuzzy control technology proposed in this paper has excellent driving character.
285
Authors: Zong Ru Yang, Daniel Scherer, Matthias Golle, Hartmut Hoffmann
Abstract: Shrinking is an incremental forming process and can be carried out using a driving machine, so called “Kraftformer”. It needs an upper and a lower shrinking tool, each of which has two moveable jaws as contact and force transform units. During every forming operation the tools clamp the metal sheet, so that the vertical forces from the upper tool are switched by the leverages inside the tools into the horizontal directions. The moveable jaws are practiced by the horizontal forces to compress the metal sheet. The shrinking of the metal sheet brings out the different three-dimensional forms. As a traditional manual forming method, economical productions can’t be reached for individualized sheet metal parts to achieve the customer’s demands. Hence, it is proposed to automate this forming process to reduce the manual work. The production strategies are to be deduced from the manual shrinking process. A direct way to get them is to simulate the forming process in a FEM-software environment. But within such a FEM-simulation it can take about even one hour only just to finish one forming step. Furthermore, an analytical modeling of the shrinking can’t be realized because of its complex procedures such as variation of contact conditions, material hardening. However, a pure geometric model can be established to demonstrate the change of the 3D-forms of the sheet metal parts. The respective forming parameters can be identified through the experiments. The simulation can take place only in a few seconds. This paper provides general information about the application of the manufacturing method and with it the qualification of shrinking as a manufacturing concept for the production of individualized sheet metal products.
509
Authors: Chun Hua Li, Li Zhao, Shan Hu, Li Yun Shen
Abstract: In view of the LED lights' high efficiency property, compared to the common driving circuit of large power LED, ARM microprocessor and Buck-Boost power converter are used to design the high efficiency LED lights' driving circuit. At the same time, PID adjustment mode is applied to realize Illumination control of the high efficiency LED lights, which improves the adjustable speed of the system and reduces the power loss. According the principle of design, experiment platform is rebuilt. Tests to the different kinds of lamps indicate that the driving is stable and realizes the Illumination setting and automatic Illumination adjustment.
40
Authors: Ye Fei, Wei Na Zhang, Zhe Hao Wu
Abstract: The heading machine is one of the key equipment of coal mine roadway drivage, and cantilever machine applied most widel, A lot of coal roadway floor condition is very poor in our country, so its travel mechanism performance also have a higher requirements. Especially when driving on slopes, frequently, caterpillar not firm grip, and backward. This article is based on crawler and the ground interaction theory optimization model is established, the crawler structure parameters are optimized in order to obtain maximum tractive force,thereby improving the performance of walking.
394
Authors: Gang Tang, Jia Hui Huang, Gao Feng Wei, Gang Wu, Hai Shan Wang
Abstract: To explore the new method for the design of humanoid robot driving system. This driving system is to use the force-line model to parallel drive the limbs of the robot. A humanoid robot driving system with the force-line model has been constructed. New software for muscle force estimation has been developed. The solution of the parameters which are the input of the software has been statement. Finally, the input parameters have been obtained by experiment and calculation. The humanoid robot can be parallel driven to imitate human walking by the force which along the force-line. It will provide wide insight in developing new type humanoid robot for complex motion.
449
Authors: Shi Jun Cheng, Hua Jing Zheng, Quan Jiang, Gang Yang
Abstract: A full color 2.2″ passive matrix organic light-emitting diodes (OLEDs) with 128 (RGB) * 160 pixels was developed. The display features that driving circuit can transform 18 bits gray-scale data from a PC to the OLED panel via a DVI channel. The size of the pixel was 240μm240μm, while that of mono sub-pixel is 190μm45μm. The lifetime of panel was estimated over 5000h because of the use of dual-scan driving technology, and the power consumption of the display was 300mw about when the average luminance of panel reach 40cd/m2.
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