Ravi Pandey

The International Conference on Computational & Experimental Engineering and Sciences, Vol.20, No.1, pp. 31-32, 2011, DOI:10.3970/icces.2011.020.031

Abstract Theme Lecture: First Principles Study of Nano-bio Hybrid Systems
Prof Ravi Pandey
Michigan Tech University, USA More >

Y.S. Chen, Y.H. Huang, B. Yeung, L. Liu, Y.Y. Hung

The International Conference on Computational & Experimental Engineering and Sciences, Vol.20, No.1, pp. 21-22, 2011, DOI:10.3970/icces.2011.020.021

Abstract Active thermography is an optical-based non-contact inspection method for full-field and quantitative measurement of surface radiation to predict potential faults or inner structure of a test object. The mechanism of the active thermography inspection is to excite the test object using appropriate thermal excitation methods and measure the corresponding thermal response. Active thermography conducts testing in a more controllable way and offer more reliable results compared to passive thermography. This paper reports the development of integrated systems featured some advanced excitation methods and thermal image processing methods. Experiments have been conducted on samples with disbonds, delaminations, internal cracks or voids,… More >

Ralph H. Scheicher

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.3, pp. 93-94, 2011, DOI:10.3970/icces.2011.019.093

Abstract The purpose of this talk is to provide an overview of the most recent theoretical studies undertaken by us in the field of hydrogen storage materials research. On selected examples, the application of our computational tool of choice, density functional theory, will be illustrated to show how ab initio calculations can be of use in the effort to reach a better understanding of hydrogen storage materials and to occasionally also guide the search for new promising approaches. Systems to be discussed include: Metal-organic frameworks, where we have studied hydrogen physisorption in three different types of iso-reticular MOFs, namely Zn-/Mg-/Ca-MOF16, decorated… More >

Duan Menglan, Wang Qin

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.2, pp. 43-44, 2011, DOI:10.3970/icces.2011.019.043

Abstract This paper focuses on the methodologies on strength and buckling of typical submarine pipeline (Pipe-in-pipe system) under high temperature and high pressure (HT/HP) conditions. The internal high pressure and high temperature of oil/gas, external hydraulic pressure in deepwater, variational frictional force of soil, and the complex structure of the PIP system make the equilibrium equation of the subsea pipeline exhibit strong nonlinear performance in such nonlinear boundary conditions. The numerical methods are summarized for solving the nonlinear equations in this paper. The paper also presents evaluation methods for the lateral and upheaval buckling of two types of pipe-in-pipe systems (compliant… More >

De-Shin Liu, Kuo-Liang Cheng, Zhen-Wei Zhuang, T. C. Lee

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.2, pp. 41-42, 2011, DOI:10.3970/icces.2011.019.041

Abstract High speed spindle is the key component for high precision machine center. The optimum design of spindle cooling system have to achieve to avoid the high heat produce by the build-in motor that can make great damage to the spindle bearing systems. This paper presents a new solid-fluid coupling computing method for design high speed spindle cooling system. Energy equation has been formed for a control volume within the cooling channel to describe the heat absorbing by the coolant moving in a constant speed. Finite different method is applied to solve temperature rising in the coolant and coupled with a… More >

Cheng-Yu Ku, Chein-Shan Liu, Weichung Yeih, Chia-Ming Fan

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.2, pp. 33-34, 2011, DOI:10.3970/icces.2011.019.033

Abstract In this paper, a novel method, named the perturbed dynamical method, is proposed to solve nonlinear systems whose Jacobian matrix is singular. The concept of the proposed method roots from the conventional homotopy method but it takes the advantages of converting a vector function to a scalar function by using the square norm of the vector function to conduct a scalar-based homotopy method. Then, a small parameter, which is similar to the perturbation theory, is introduced to the singular systems of nonlinear equations such that the modified singular systems of nonlinear equations become nonsingular and the asymptotic solutions may be… More >

Li-Shin Lu

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.1, pp. 23-24, 2011, DOI:10.3970/icces.2011.019.023

Abstract Sieve shaker is widely used in industrial and experimental processes for sieving granular material. With simply mechanical motion and convenient replacement of sieves, sieve shaker is also an appropriate device to be employed for the research of particle sieving. This study uses an experimental system of sieve shaker which can measure the sieving efficiency in real time to investigate the sieving performance of granular material. Two kinds of glass bead with different diameters, 1 mm and 5 mm, are used as the granular material to explore the influences of vibrating condition, size of mesh hole and thickness of granular layer… More >

Zeng Fan, Zhu shijian, Lou jingjun

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.1, pp. 5-6, 2011, DOI:10.3970/icces.2011.019.005

Abstract A signal processing electric circuit used in vibration signals processing system has been designed, which contains the pre-amplifier, the single chip ATMEGA16 and the microprocessor programmable MAX262 and so on. Its feasibility test is carried out. The center frequency and other parameters are input into the computer by VC software programmed, and the computer sends these instructions to the single chip. The single chip controls MAX262 filter to work regularly and the noise signals are well filtered. The signals output from the data sampler are analyzed and processed, and the vibration signals can be clearly recognized. The experimental results show… More >

K.C. Chuang, C.C. Ma, C.H. Wang

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.1, pp. 1-2, 2011, DOI:10.3970/icces.2011.019.001

Abstract Smart flexible structures involve four key elements: actuators, sensors, control strategies, and power conditioning electronics, which makes the structures being capable of realizing specific functions. Recently, fiber Bragg grating (FBG) strain sensors are being considered to be integrated into smart structures since they possess many excellent properties such as low density, small size, simplicity of fabrication, and immunity to electromagnetic fields. In this paper, unlike traditional FBG strain sensors, a fiber Bragg grating (FBG) sensing system which has the ability to detect point-wise out-of-plane displacement responses is set up on a smart cantilever beam to perform active vibration control. The… More >

Sukumar Srikant, Maruthi Akella

The International Conference on Computational & Experimental Engineering and Sciences, Vol.16, No.2, pp. 41-42, 2011, DOI:10.3970/icces.2011.016.041

Abstract We investigate state observer design for systems endowed with shared-sensing and control through reversible transducers. In this framework, reversible transducers are continually switched between the actuation and sensing modes at some specified schedule. Design and analysis of stable state-observers and feedback controllers for these classes of switched/hybrid systems are significantly complicated by the fact that at any given instant of time, the overall system loses either controllability (during the sensing phase) or observability (during the actuation phase). In this work, we consider linear systems with a single shared-sensing (reversible) transducer and provide a novel observer that guarantees exponential reconstruction of… More >