Dynamic Stability and Analysis of SMIB system with FLC Based PSS including Load Damping Parameter Sensitivity

This paper studies Dynamic Analysis and Stability of Single machine connected to infinite bus (SMIB) with power system stabilizer (PSS) in presence of Fuzzy logic controller (FLC) including load damping parameter sensitivity. Here PSS is modeled using fuzzy logic controller and the response is compared with the responses of the system in presence of conventional PI, PID controllers including load damping parameters sensitivity. In case of FLC based PSS the responses are compared different load damping parameters. Matlab-Simulink is used to test the results

Hybrid composites under high strain rate compressive loading

Hybrid composites consist of two or more types of fibres and/or matrices in a composite. By combining two or more types of fibres, it is possible to club advantages of both the fibres while simultaneously mitigating their less desirable qualities. Investigations on high strain-rate behaviour of a typical hybrid composite under compressive loading are presented. The hybrid composite is made using satin weave carbon and plain weave E-glass with epoxy resin. Studies were also carried out on satin weave carbon/epoxy and plain weave E-glass/epoxy. Compressive split Hopkinson pressure bar (SHPB) apparatus was used for the studies. Compressive properties were evaluated along all the three principal directions in the strain-rate range of 546–1503 s−1. During SHPB testing of the specimens, it was observed that the peak force obtained from the strain gauge mounted on the transmitter bar is lower than the peak force obtained from the strain gauge mounted on the incident bar. The explanation for this is provided based on stress wave attenuation studies.© Elsevie

Interlaminar shear properties of polymer matrix composites: strain rate effect

Studies are carried out on interlaminar shear behavior of typical polymer matrix composites under high strain rate shear loading. Torsional split Hopkinson bar (TSHB) apparatus is used for the studies in the shear strain rate range of 496–1000/s. Experimental details, specimen configuration and development, data acquisition and processing are presented. Interlaminar shear strength and shear modulus are presented as a function of shear strain rate. The results are presented for typical plain weave carbon/epoxy and plain weave E-glass/epoxy composites. For comparison, studies are presented at quasi-static loading. It is observed that the interlaminar shear strength at high strain rate is enhanced compared with that at quasi-static loading. Further, it is observed that the interlaminar shear strength increases with increasing shear strain rate within the range of shear strain rate considered.© Elsevie

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Not AvailableSafflower (Carthamus tinctorius L.) is a multi-purpose oilseed crop grown for vegetable oil, animal feed, natural dyes and medicinal uses globally (Knowles 1989; Li and Mündel 1996). It is a traditional oilseed crop of India, primarily known for its healthy cooking oil containing more than 80% of polyunsaturated fatty acid (PUFA), the highest among edible oils (Kostik et al. 2012). Despite economic importance, safflower cultivation is declining in India, from 10 lakh ha. in 1988 to 1.5 lakh ha. in 2013 (FAOSTAT 2013). Seed oil content in the popular cultivars remains low (~28-32%), which is a concern for increasing the profitability of safflower cultivation. Increase of oil content in the cultivar would eventually lead to increase in oil yield, which would make safflower a commercially competitive crop for the farmers and attract the vegetable oil industry to take up safflower promotion in the country. We are exploring various strategies including the introduction of exotic high oil germplasm/varieties, conventional and molecular breeding to enhance oil content coupled with high seed yield in safflower.Not Availabl