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types of impact were examined through experiments. The impact energy of a striker was applied on the fixed aluminum foam having a thickness of 25 mm while increasing its impact by 2 J at each strike from 6 J to 16 J. The results show that the impact energies from 6 J to 12 J could not penetrate aluminum foam. However, the aluminum foam applied with the impact energy of 12 J incurred severe damages......
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and bearing clearance was proposed for planetary gear set. Meanwhile, sun gear and planet’s eccentricity errors, static transmission error, and time-varying meshing stiffness were taken... train, enrich the related literature and provide references for the design of planetary gear train.Key words:planetary gear train; dynamic load sharing; time-varying stiffness; backlash; bearing......
gear set was proposed, and planet’s eccentricity error, static transmission error, and time-varying meshing stiffness were taken into consideration. The solution of differential governing equation... gear; load sharing; time-varying stiffness; torsional stiffness; sun gear radial orbit......
is investigated for a class of uncertain switched systems with time-varying delay. A robust observer-based fault estimator is designed such that the augment error system is exponentially stable and the H.... Therefore, the validity of the obtained results is illustrated.Key words:fault estimation; switched linear system; time-varying delay; model uncertainty; average dwell-time......
Impact Energy of Functionally Graded Steels with Crack Divider ConfigurationAli Nazari,Jamshid Aghazadeh MohandesiDepartment of Mining and Metallurgical Engineering, Amirkabir University.... Charpy impact energy of as-prepared specimens was measured in the form of crack divider. The obtained results show that the impact energy of the specimens depends on the type and the volume fraction......
Evaluating instrumented Charpy impact strain signals using curve fitting equationsM. B. Ali1, 2, S. Abdullah1, M. Z. Nuawi1, A. K. Ariffin1, Z. M. Nopiah1(1. Department of Mechanical and Materials... Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal 76100, Malaysia)Abstract:An effective and simple way to develop equations from impact strain signals was proposed. Little research has been......
Comparison of Impact Properties for Carbon and Low Alloy SteelsO.H.Ibrahim摘 要:The impact properties of hot rolled carbon steel(used for the manufacture... ferrite/pearlite phases,while that of the quenched and tempered low alloy steel contained bainite structure.Impact properties were determined for both steels by instrumented impact testing......
, furthermore, to decrease the network collision and node energy consumption. Under the consideration of time-varying delays and signal transmission deadbands, the model for the WNCS was presented... that the proposed approach can guarantee asymptotical stability of the system and reduce the data transmission effectively.Key words:wireless networked control system; transmission deadband; time-varying......
Trans. Nonferrous Met. Soc. China 22(2012) 2334-2342 Effect of microstructure on impact toughness of magnesium alloys HUANG Zheng-hua, QI Wen-jun, XU Jing Guangzhou Research Institute of Nonferrous... investigated. Meanwhile, the impact toughness was tested and then the relationship was discussed. The results show that as-cast microstructure is refined gradually with increasing the RE content. Mg-Zn-RE new......
