The Experts below are selected from a list of 6774 Experts worldwide ranked by ideXlab platform

Rinze Benedictus - One of the best experts on this subject based on the ideXlab platform.

  • Design Optimisation Procedure for fibre metal laminates based on fatigue crack initiation
    Composite Structures, 2015
    Co-Authors: I. Şen, René Alderliesten, Rinze Benedictus
    Abstract:

    Abstract A Design Optimisation Procedure for fibre metal laminates based on fatigue crack initiation is presented. The state-of-the-art Design method is a solution-oriented analysis, where only selected lay-ups are assessed for satisfying the Design criteria. This study aims to develop a reversed Design Procedure where the lay-ups are obtained as Design solutions. Therefore, a genetic algorithm Procedure is developed to find the optimal lay-up satisfying the required fatigue life. The accuracy of the prediction method for crack initiation depends on the selected S–N curve of the constituent metal, which is observed to influence the obtained Design solutions. Additionally, it was observed that the settings of genetic algorithm need to be tuned to obtain a robust Optimisation methodology. In conclusion, with the presented methodology appropriate Design solutions were obtained that satisfy the minimum fatigue life.

I. Şen - One of the best experts on this subject based on the ideXlab platform.

  • Design Optimisation Procedure for fibre metal laminates based on fatigue crack initiation
    Composite Structures, 2015
    Co-Authors: I. Şen, René Alderliesten, Rinze Benedictus
    Abstract:

    Abstract A Design Optimisation Procedure for fibre metal laminates based on fatigue crack initiation is presented. The state-of-the-art Design method is a solution-oriented analysis, where only selected lay-ups are assessed for satisfying the Design criteria. This study aims to develop a reversed Design Procedure where the lay-ups are obtained as Design solutions. Therefore, a genetic algorithm Procedure is developed to find the optimal lay-up satisfying the required fatigue life. The accuracy of the prediction method for crack initiation depends on the selected S–N curve of the constituent metal, which is observed to influence the obtained Design solutions. Additionally, it was observed that the settings of genetic algorithm need to be tuned to obtain a robust Optimisation methodology. In conclusion, with the presented methodology appropriate Design solutions were obtained that satisfy the minimum fatigue life.

René Alderliesten - One of the best experts on this subject based on the ideXlab platform.

  • Design Optimisation Procedure for fibre metal laminates based on fatigue crack initiation
    Composite Structures, 2015
    Co-Authors: I. Şen, René Alderliesten, Rinze Benedictus
    Abstract:

    Abstract A Design Optimisation Procedure for fibre metal laminates based on fatigue crack initiation is presented. The state-of-the-art Design method is a solution-oriented analysis, where only selected lay-ups are assessed for satisfying the Design criteria. This study aims to develop a reversed Design Procedure where the lay-ups are obtained as Design solutions. Therefore, a genetic algorithm Procedure is developed to find the optimal lay-up satisfying the required fatigue life. The accuracy of the prediction method for crack initiation depends on the selected S–N curve of the constituent metal, which is observed to influence the obtained Design solutions. Additionally, it was observed that the settings of genetic algorithm need to be tuned to obtain a robust Optimisation methodology. In conclusion, with the presented methodology appropriate Design solutions were obtained that satisfy the minimum fatigue life.

Jaouhar Mouine - One of the best experts on this subject based on the ideXlab platform.

  • Design Optimisation Procedure for digital mismatch compensation in latch comparators
    IET Circuits Devices & Systems, 2018
    Co-Authors: Leila Khanfir, Jaouhar Mouine
    Abstract:

    Digital calibration schemes generally allow for high-speed operation and reduced power consumption at the price of lower accuracy compared with their analogue counterparts. However, in dynamic comparators, when exceeding 4 or 5 bits, any resolution increase will be progressively traded against the circuit parameters. This study presents a three-step Design Procedure to optimise the comparator performance for a given N . First, a new configuration of the latch comparator has allowed optimising the comparison speed in terms of N . Second, the calibration scheme has been reduced to a simple digital sequencer to perform a progressive capacitive offset trimming. Third, the sequencer automatic increment has been programmed to stop at optimal operation to achieve the best calibration accuracy. The proposed method has then been applied to Design a latch comparator with 7 bit calibration control in a commercially available 0.18 μm complementary metal-oxide-semiconductor technology. Post-layout statistical simulations have shown that the circuit can achieve up to 5.9 bit calibration resolution without altering the comparator performances.

Jože Duhovnik - One of the best experts on this subject based on the ideXlab platform.

  • a multi criteria polymer gears Design Optimisation Procedure
    International Conference on Gears 2019, 2019
    Co-Authors: Joze Tavcar, Jaka Kos, Damijan Zorko, Jože Duhovnik
    Abstract:

    An open challenge is the reliable dimensioning of polymer gears due to the lack of accurate data on the fatigue strength of polymer materials, and the complex relations between geometric and operating parameters. The national standards (BS 6168:1987, JIS B 1759:2013) and the guidelines of the German engineering association VDI 2736 are available for the calculation of polymer gears. In most cases, polymer gear Designers do not have a complete picture of all interactions between the Design parameters, and so a larger number of iterations is required for the optimal gear Design or the Design of gears is oversized. We have developed the computer program, OptiTooth 10.0, for spur and helical gears that in the first step enables the variation of geometry according to different criteria: the number of teeth (z1, z2), helix angle (β), and a tooth normal module (mn). A user can have an overview over a larger number of possible solutions, as well as how the Design parameters influence the target criteria. The objective is to fulfil the torque transfer function in the smallest volume. In the second step, the user conducts a detailed control calculation for the selected gears, and the computer program prepares the results of gear calculation and all geometric values of the gears. (Less)