Structural optimization

The article presents some theoretical foundations to solve the problem of dynamic control and optimizing the structure of multifunctional carbon nanofiber-reinforced material plates with integrated piezoelectric crystal.

13p viling 11-10-2024 0 0   Download

Artificial neural network (ANN), a powerful technique, has been used widely over the last decades in many scientific fields including engineering problems. However, the backpropagation algorithm in ANN is based on a gradient descent approach.

15p vibecca 01-10-2024 1 0   Download

This study investigates how selecting different vehicle axle load survey data scenarios impacts the accuracy of pavement design and rehabilitation for roads in Vietnam. Evaluation of various data selection methods and their influence on pavement response using the current flexible pavement calculation procedure in Vietnam.

12p vibecca 01-10-2024 2 1   Download

The paper's contributions can extend to optimizing concrete mixtures, formulating repair strategies, and improving structural assessments. Further research is suggested to improve the accuracy of simulations and investigate material properties under various conditions.

14p vibecca 01-10-2024 0 0   Download

Recently, the phase field modelling is widely used to model and simulate material damage. In present work, we present a framework of the topology optimization combined with the phase-field modelling with/ without interfacial damage for optimizing the damage resistance of the inclusion-matrix composites.

17p vibecca 01-10-2024 1 1   Download

A new formulation to calculate the shakedown limit load of Kirchhoff plates under stochastic conditions of strength is developed. Direct structural reliability design by chance constrained programming is based on the prescribed failure probabilities, which is an effective approach of stochastic programming if it can be formulated as an equivalent deterministic optimization problem.

4p vibecca 01-10-2024 3 0   Download

This study analyzes and optimizes the structural design of three-dimensional (3D) reinforced concrete frame structures to minimize the amount of two main materials, including concrete and steel reinforcement, used in reinforced concrete frames.

16p viyoko 01-10-2024 4 1   Download

The article develops a novel framework for Multidisciplinary Design Optimization of aircraft wing. Practically, the study implements a high-fidelity fluid/structure analyses and accurate optimization codes to obtain the wing with best performance.

14p vifilm 24-09-2024 1 1   Download

This paper is an extension of our recent work that presents a two-scale design method of porosity-like materials using adaptive geometric components. The adaptive geometric components consist of two classes of geometric components: one describes the overall structure at the macrostructure and the other describes the structure of the material at the microstructures.

9p vifilm 24-09-2024 3 1   Download

This paper aims to use the AdaBoost-DE algorithm for optimizing steel roof trusses. The AdaBoost-DE employed in this study is a hybrid algorithm in which the AdaBoost classification technique is used to enhance the performance of the Differential Evolution algorithm by skipping unnecessary fitness evaluations during the optimization process. An example of a duo-pitch steel roof truss with a span of 24 meters is carried out.

12p vifilm 24-09-2024 3 1   Download

Greenhouse Gas emission from high-rise buildings has been increasing mainly due to excessive energy consumption of the HVAC system, structural system and electrical system. In this study, a lab-scale experiment was conducted to test the electricity consumption in applying different design approaches; the energy efficiency of the system was calculated.

9p viyoko 24-09-2024 1 1   Download

This paper aims to apply the developed ADE to optimize truss structures subjected to frequency constraints. In addition, limitations of the AOA are also discussed, as well as how to overcome them. In each iteration, a randomly generated probability parameter is used to determine whether AOA or DE that would be used to generate new candidate solutions in the population.

16p vifaye 20-09-2024 2 1   Download

This research uses decomposition analysis and the optimal structure analysis to evaluate the role of change in sectorial structure of gross domestic product in reducing carbon emission intensity in 10 OECD countries during 2010 - 2018. The data are adapted from the environmental account and social matrix account belonging to the database of OECD statistics. The decomposition analysis result shows that changes in GDP structure made the aggregate emission intensity in Denmark, Finland, and Slovak Republic increase, but made the indicator in other countries decrease.

24p toduongg 24-08-2024 2 2   Download

The article "A review of metaheuristic optimized machine learning regression with applications in construction engineering" aims at reviewing state-of-the-art research works involving the use of metaheuristic optimized machine learning regression models. Recent research articles published in the time period of 2019-2021 are surveyed. Research areas of construction material, construction management, structural engineering, geotechnical engineering, hydraulic engineering, and structural health monitoring are taken into account.

7p nhanchienthien 25-07-2023 7 4   Download

The aim of the thesis "Copreneurial sustainability: optimizing structures in small and medium U.S. enterprises" is to identify structures that support long-term sustainability of the copreneurial enterprise and its subsystems. To support the aim of the thesis, the following research question was derived from the literature review: What optimizing structures are created by copreneurs to achieve sustainability of both the business and the family?

350p runthenight04 02-02-2023 6 2   Download

The study "Multi-objective solar building envelope design optimization" includes four main objectives: 1 - To explore the components of a building envelope design optimization framework that would be developed for the conceptual building design phase; 2 - To establish an optimization process for different BIPV application types; 3 - To investigate the optimization algorithms and methods that could be used to optimize building envelope design for BIPV; 4 - To develop and validate an optimization framework to integrate BIPV into the building structure.

158p runthenight04 02-02-2023 5 2   Download

Once the mechanical properties of printed TPU are characterised, a novel, low cost, and environmentally friendly method for concrete casting using printed TPU moulds is proposed in this thesis. Additively manufactured TPU mould is developed to cast complex concrete structures. A planar topologically optimized cantilever and a free-form 3D column are cast using the proposed TPU mould. Good surface quality is obtained for the cast concrete elements, and the moulds can be reused many times after cleaning.

98p runthenight04 02-02-2023 8 4   Download

Lecture Data Structures: Lesson 37 provide students with knowledge about timing with optimization; image segmentation; inclusion criteria for pixels: use pixel intensity, threshold of intensity, threshold for difference in intensity of neighbors, texture;...

22p hanthienngao 15-04-2022 17 2   Download

Goals of the dissertation: This thesis focuses on studying and developing meta-heuristic optimization methods and combines them with the Artificial Neural Network, which has advantages in approximating data, to build up a new algorithm for solving composite material structural optimization problems.

136p monsterhunterer 20-06-2021 8 2   Download

The motivation to study the topics presented in the thesis comes from the analysis of published literatures, and from the evaluation of the application potential of composite material structures and intelligent optimization methods, especially the reliability-based optimization methods.

136p gaocaolon12 18-06-2021 21 4   Download