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Zhang N.,Tsinghua University | Yao Z.-J.,China Machinery Industry Federation | Zhou J.-X.,Tsinghua University | Chen Z.-L.,China Machinery Industry Federation
Xitong Gongcheng Lilun yu Shijian/System Engineering Theory and Practice | Year: 2013

The wave of information technology (IT) provides opportunities and challenges to traditional manufacturing industries. The problem that how to describe and measure the impact of IT investment and implementation on organizational performance, however, has been a vital issue which plagued to the domestic and foreign academia and practitioners in related research area. The study proposed a conceptual model for exploring the impacts from three informationization action patterns, IT infrastructure construction, specific transaction application, and collaborative integration on organizational performance, and effects from enterprise size as a moderator. Based on the survey data from companies in heavy-duty machinery industry, the paper conducted an empirical analysis by using structural equation modeling method. The theoretical value of the results and practical implications for informationization routing selection are also discussed.


News Article | February 15, 2017
Site: www.prweb.com

WCX 17: SAE World Congress Experience—SAE International’s completely transformed, signature event taking place April 4-6, 2017 at the Cobo Center in Detroit—has selected Mr. Yu Kai, President of China Automotive Technology and Research Center, Vice Chairman of China Association of Automobile Manufacturers, Deputy Chairman of SAE-China and Committee Member of China Machinery Industry Federation as the keynote speaker for Wednesday, April 5. During his presentation, Mr. Kai will go in depth about the latest developments and prospects of the burgeoning Chinese auto industry. Facing challenges such as increasing traffic and environmental concerns, the Chinese market has, after 10 years of rapid development, shifted to a slower rate of growth. Engineers in China are working toward vehicle electrification, smart and connected vehicles and sustainable development surrounding new energy vehicles. “We’re honored to have such a forward-looking, respected thought leader address WCX,” says David L. Schutt, Ph.D., Chief Executive Officer of SAE International. “The technical innovation coming out of the Chinese mobility sector is fascinating and I look forward to hearing more about what the future holds.” Mr. Kai’s vast experience includes time as President of the Fifth Design Institute under the Ministry of Machinery Industry, Board Member and Vice General Manager of China United Engineering Corporation, Vice General Manager of China Automotive Industry Engineering Corporation, among other positions. He began his career as an engineer and researcher. Serving as a global nexus for industry leaders, inventors, and disruptors from Detroit to Silicon Valley and everywhere in-between, WCX promises a full-spectrum, full-sensory interactive experience, uniting the mobility industry’s best talent from innovation hubs around the world for three days of active learning, high-powered collaboration, and technological discovery. In 2016, SAE World Congress drew more than 11,000 attendees from the automotive industry. As the event evolves into WCX: SAE World Congress Experience spanning the entire mobility industry, even more engineers, engineering managers, executives, academics, government/military officials, and consultants will attend. Ford Motor Company will provide Executive Leadership and DENSO will serve as the Tier One Strategic Partner for WCX. For more information, or to register: http://www.wcx17.org/register/ SAE International is a global association committed to being the ultimate knowledge source for the engineering profession. By uniting over 127,000 engineers and technical experts, we drive knowledge and expertise across a broad spectrum of industries. We act on two priorities: encouraging a lifetime of learning for mobility engineering professionals and setting the standards for industry engineering. We strive for a better world through the work of our philanthropic SAE Foundation, including programs like A World in Motion® and the Collegiate Design Series™.


Liu C.,Beijing Institute of Technology | Pan X.,China Machinery Industry Federation | Yan Q.-D.,Beijing Institute of Technology | Wei W.,Beijing Institute of Technology
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | Year: 2012

As the conventional beam streamline theory cannot optimize the blade numbers of torque converter effectively, a 3-D flow field simulation platform for torque converter has been built. The design of experiment (DOE) was adopted to study the influence of blade number on the performance of torque converter, and the blade number was optimized utilizing the response surface methodology (RSM). The results indicate that the blade numbers of pump and turbine have a great influence on maximum efficiency and stall torque ratio, while the blade numbers of pump and stator are the main factors for stall pump torque coefficient. The performance of the torque converter with optimized blade numbers is improved evidently.


Cui H.-W.,Beijing Institute of Technology | Pan X.,China Machinery Industry Federation | Yao S.-W.,Beijing Institute of Technology | Yan Q.-D.,Beijing Institute of Technology
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | Year: 2013

The double arc oil grooves friction pairs in HVD was analyzed in order to reduce the drag torque of hydro-viscous drive (HVD) and decrease the no-load power loss of friction pairs. The iSIGHT integrated optimization design platform of friction pairs in HVD was built based on the computational fluid dynamics flow numerical simulation, the design of experiment (DOE), the response surface methodology (RSM) and the numerical optimization algorithm. The influencing and sensitivity analysis of frictional pairs oil grooves parameters on drag torque was analyzed. The grooves structure parameters were optimized. Results indicate that the drag torque is monotonously decreased with the increasing of the width and depth of oil grooves, and the drag torque is monotonously increased with the increasing of the number of oil grooves. The optimized friction pairs can reduce the drag torque of HVD by increasing the width and depth of oil grooves and reducing the numbers of oil grooves, thus improve the power output of engine.


Zhang Q.,Hunan University | Pan X.,China Machinery Industry Federation | Le P.,China United Engineering Corporation | Jiang C.,Hunan University
Jixie Qiangdu/Journal of Mechanical Strength | Year: 2012

The convex model based on correlation analysis technique is applied to the automobile collision safety reliability analysis combined with the probability model. Make the key component's structure sizes and material parameters in the vehicle collision as the uncertain variable, according to its sample information acquisition with difficulty degree use probability model and convex model describe them. The Latin Hypercube sampling method was adopted to generate the sampling points, and then a second-order respond surface was constructed to approximate the vehicle collision response. The reliability index of the vehicle collision safety based on the hybrid model was obtained. Comparing with the determinate analysis, the reliability-based hybrid model analysis can better reflect the real situation, and provide an instruction for the vehicle safety design.


Li J.-H.,China Institute of Atomic Energy | Pan X.,China Machinery Industry Federation | Sun K.,China Institute of Atomic Energy | Gao J.-B.,China Institute of Atomic Energy | And 3 more authors.
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | Year: 2010

By using neutron scattering technique, a series of LaNi5-xAlx(x=0.1, 0.25, 0.3, 0.45, 0.5, 0.75) alloys and their deuterides were studied at room temperature. A series of experimental data of LaNi5-xAlx alloys were refined by means of program FullProf. Their space groups are found to be P6/mmm. The alloys' lattice parameters, cell volumes and atomic positions were obtained. It is discovered that Al atoms just substitute a part of Ni atoms which are at 3 g position. Furthermore, it is also learned that the variety of cell volume is almost proportional to the content of Al atoms in the alloys. The refined results of LaNi5-xAlxDy diffraction data show that the deuterides' space groups are still P6/mmm. The varieties of phase components, lattice parameters and cell volumes were analyzed after charging deuterium. Afterwards, the atomic positions and distribution of deuterium atoms in the cell were obtained.


Li C.,Jiangsu University | Huang W.,Jiangsu University | Li K.,Jiangsu University | Han B.,Jiangsu University | Wang Z.,China Machinery Industry Federation
Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering | Year: 2016

In order to validate the design of an intelligent transformation joint based on hydraulic control and optimize the geometry of flow passages in the joint, a three-dimensional model of the joint is constructed in Pro/E and an unstructured grid is generated in the fluid domain. Then the fluid flow governing equations and boundary conditions are chosen according to the device working principle and characteristics. The standard k-ε turbulence model and wall-function are used to simulate the internal flow field in the joint at four openings of the one-way valve. The distributions of velocity and turbulent kinetic energy are obtained and analyzed using CFD software. Moreover, an experimental device is built to measure the outlet flow rate and the pressure difference between the inlet and the outlet at those openings. By a comparison of numerical analysis and experimental validation, the best opening with lower energy consumption is determined. The experimental results show that the intelligent joint based on hydraulic control can realize an intelligent conversion between the oil production status and the testing states, meeting the requirement on function. Besides, the best internal flow condition, in which the hydraulic loss is small and the velocity is high, is achieved at 50 mm opening. The numerical results are consistent with the experimental data. The results provide a basis for improving device internal structure and enhancing oil production efficiency. © 2016, Editorial Department of Journal of Drainage and Irrigation Machinery Engineering. All right reserved.

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