scholarly journals Analysis and design significance of impedance ring loss coefficient component test results

1964 ◽  
Author(s):  
A.I. Miller
2012 ◽  
Vol 430-432 ◽  
pp. 1866-1870
Author(s):  
Zhi Xiong Zhu ◽  
Shi Shun Zhu ◽  
Guo Jun Wang ◽  
Yan Zhu

Design and implementation of six freedom transportation vibration spectrum collection system is presented in this paper. The Attitude and Heading Reference System (AHRS) is used to capture signals including x, y, z, direction linear acceleration, angular rates around Z-axis and pitch, roll degree. The software’s architecture and modules for host computer is designed with object-oriented analysis and design techniques, and the software is implemented with VC++6.0. The test results show that the system was able to collect vehicular vibration information on time and the collection data was replayed on the vibration platform.


2011 ◽  
Vol 250-253 ◽  
pp. 2877-2880 ◽  
Author(s):  
Guang Lin Yuan ◽  
Lu Dan Tian

Accidents of the cement manufacturers’ reinforced concrete silo structures frequently occurred currently in China, because of quality problems, causing enormous losses. The collapse status of a cement raw meal silo is investigated. Combined with the test results of the location and spacing of silo wall’s reinforcing bars, concrete strength, cracks and defects, the reasons for collapse of silo wall are analyzed and design recommendations for concrete silo structures are made. This can give reference to reinforced concrete silo structure design and construction in the future.


2016 ◽  
Vol 68 (3) ◽  
pp. 430-438 ◽  
Author(s):  
Christopher Sous ◽  
Henrik Wünsch ◽  
Georg Jacobs ◽  
Christoph Broeckmann

Purpose The purpose of this paper is to investigate the applicability of the quadratic failure hypothesis (QFH) on journal bearings coated with a white metal sliding layer on the prediction of safe and unsafe operating conditions. The hypothesis covers operation conditions under static and dynamical loading. Design/methodology/approach Material tests and elastohydrodynamic, as well as structural, simulations were conducted to provide the required input data for the failure hypothesis. Component samples were tested to verify the results of the QFH. Findings The load bearing capacity of journal bearings was analysed for different operating conditions by the use of the QFH. Results allow for the identification of critical and non-critical loading conditions and are in accordance with component test results. Originality/value Today’s design guidelines for journal bearings do not consider a multi-axial stress state and actual stress distribution. The applied hypothesis enables consideration of multiaxiality inside the sliding surface layer, as well as determining the location of bearing fatigue due to material overload.


2002 ◽  
Vol 2002.1 (0) ◽  
pp. 297-298
Author(s):  
Kenichi FUNAMOTO ◽  
Masayoshi MISAWA

2016 ◽  
Vol 1 (1) ◽  
pp. 7-16
Author(s):  
Muhammad Rofiq ◽  
Bambang Tri Wahjo Utomo

Most of Safes lock system is still using conventional methods nowadays. The conventional method leads to the safes’ burglary. Some of the causes are the safes’ code that can be tracked easily and the key can be duplicated. Previous research on safes’ security has ever been done. The weakness of the study is there is no security system using cryptographic algorithms for data security. The development of a safes security system by implementing ElGamal algorithms is done by following the engineering approach with the stages of methods analysis and design system, implementation and testing of the analysis and the discussion of the overall system. In the analysis and design of mathematical models using ElGamal algorithms, uses fast powering theorems and applications design uses Object OrientedProgramming. In the analysis of hardware refers to the datasheet and calculation of the value of electrical characteristics of the circuit. In the safes lock system, the outcome of the research is a safes prototype which is equipped with enhancements that include a series of processing algorithms, the data viewer, a wireless data transfer device, the Android smartphone as a system of user authorization. For the lock safes systems is using a locked solenoid. The control system is done by a lock safes android smartphone via Bluetooth communication. The test results also indicate the system will open the safes if the code and the public key is entered correctly, and the system will not open if one of the codes or the public-keys are wrong or both are wrong.  


1994 ◽  
Vol 116 (3) ◽  
pp. 542-546 ◽  
Author(s):  
G. Leonard ◽  
J. Stegmaier

This paper gives the development status of GE’s new aeroderivative premixed combustion system. This system consists of a new fuel staged annular combustor, compressor rear frame, first-stage turbine nozzle, electronic staging controller, and fuel delivery system. Component test results along with a description of the combustion system are presented. This new system will reduce NOx emissions by 90 percent relative to the original aircraft engine combustion system while maintaining low emissions of CO and UHCs. Tests of a LM6000 gas turbine equipped with the new system are planned for early 1994.


Author(s):  
Chris Gearhart

Abstract We present a statistical method for characterizing the information contained in multiple crash pulses. This method uses a wavelet expansion to give a compact representation of each of the crash pulses analyzed. A probable distribution of the wavelet coefficients representing each pulse is calculated. Bayesian inference is used to determine the most probable subset of wavelet coefficients needed to describe the data sets. This subset forms a signature that is representative of all the crash pulses used for the analysis. For tests we have analyzed the wavelet signatures typically consist of 10 to 20 wavelet coefficients which can be associated with specific subsystems in the vehicle. These signatures can be used as a basis for measuring correlation between pulses. We demonstrate this by comparing signatures taken from two types of sedans and from two types of trucks. Correlation between CAE analysis and test results or between CAE analysis and design objectives are also possible. We present results from one application in which correlation, based on wavelet signatures, is used to move a crash worthiness concept model toward a specified design target.


2011 ◽  
Vol 403-408 ◽  
pp. 3153-3157
Author(s):  
Lv Qing Yang ◽  
Hao Wang

In accordance with the theory of software engineering life cycle and the process of project development, the paper designs and implementations the weighbridge network monitoring system based on RFID. Paper firstly describes the goal of building a system, analyzes the system's functional and non functional requirements. On this basis, the paper discusses the physical architecture, software architecture and development environment. Combined with interface technology such as RFID, infrared locator and anti-fraud monitoring and business process, this paper designs three-tier software architecture and key interface of the system. Finally, through the design and implement of the test case, the fix of the software bugs, this paper indicates that the system test results are reasonable and correct.


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