A5040163513- Topology Optimization in Engineering
- Probabilistic and Robust Engineering Design
- Advanced Multi-Objective Optimization Algorithms
- Structural Analysis and Optimization
- Composite Structure Analysis and Optimization
- Robotic Mechanisms and Dynamics
- Advanced Optimization Algorithms Research
- Robotic Locomotion and Control
- Dynamics and Control of Mechanical Systems
- Structural Health Monitoring Techniques
- Manufacturing Process and Optimization
- Structural Load-Bearing Analysis
- BIM and Construction Integration
- Ergonomics and Musculoskeletal Disorders
- Structural Response to Dynamic Loads
- Prosthetics and Rehabilitation Robotics
- Mechanical Engineering and Vibrations Research
- Metaheuristic Optimization Algorithms Research
- Advanced Control Systems Optimization
- Advanced Numerical Analysis Techniques
- Advanced Database Systems and Queries
- Muscle activation and electromyography studies
- Vibration and Dynamic Analysis
- Balance, Gait, and Falls Prevention
- Structural Engineering and Vibration Analysis
University of Iowa
2014-2024
Panjab University
1988-2024
University of Misan
2023
Knexus Research (United States)
2011-2018
Post Graduate Institute of Medical Education and Research
2017
University of Pennsylvania
2003-2014
Processos - Soluções de Engenharia (Brazil)
2011
Engineering Arts (United States)
2011
Institute for Computer Aided Design
2009
University of Central Florida
2008
Abstract A comprehensive study of various mathematical programming methods for structural optimization is presented. In recent years, many modern techniques and convergence results have been developed in the field programming. The aim this paper twofold: (a) to discuss applicability design problems, (b) present from a unified engineers' viewpoint. Theoretical aspects are considered here, while numerical test problems discussed companion paper. Special features possessed by together with...
Design sensitivity analysis plays a central role in structural optimization, since virtually all optimization methods require computation of derivatives response quantities with respect to design variables. Three fundamentally different approaches are presented. These have been used extensively the literature. They virtual load method, state space and method. An these indicates that more general than Moreover, when applicable, is special case Any one procedures may be incorporated into an...
The behavior of the structure is assumed to be described by a finite element model. Several techniques for computing static response modified structures are available in literature. These initial strain concept reanalysis, based on Sherman-Morrison identity, some general structural modifications, Taylor series approach, iterative techniques, reduced basis methods, and other techniques. Some new approaches method tried their results summarized. For frequency three basically different...
It is useful with multi-objective optimization (MOO) to transform the objective functions such that they all have similar units and orders of magnitude. This article evaluates various transformation methods using simple example problems. Viewing these as different means restrict function values sheds light on how perform. The weighted sum approach for MOO used study well aid in depicting Pareto optimal set. Whereas unrestricted weights suited providing a single solution reflects preferences,...
This paper describes a unified variational theory of design sensitivity analysis linear and nonlinear structures for shape, nonshape, material selection problems. The concepts reference volume adjoint structure are used to develop the viewpoint. A general formula is derived. Several analytical examples interpret various terms demonstrate its use. Such give insight into application more complex problems that must be treated numerically. Adjoint state fields also interpreted as sensitivities...
Estimating forces in muscles and joints during locomotion requires formulations consistent with available methods of solving the indeterminate problem. Direct comparisons results between differing optimization proposed literature have been difficult owing to widely varying model formulations, algorithms, input data, other factors. We present an application a new program which includes linear nonlinear techniques allowing variety cost functions greater flexibility problem formulation. Unified...
Abstract Multiplier methods used to solve the constrained engineering optimization problem are described. These by minimizing a sequence of unconstrained problems defined using cost and constraint functions. The methods, proposed in 1969, have been determined be quite robust, although not as efficient other algorithms. They can more effective for some applications, such optimum design control large scale dynamic systems. Since 1969 several modifications extensions developed. Therefore, it is...
This paper describes procedures for design sensitivity analysis of nonlinear structural response using the incremental solution scheme. The total and updated Lagrangian approaches are discussed. Sensitivity analyses stress, strain, displacement constraints developed. In optimization process, buckling load constraint is also imposed. Numerical aspects Three numerical examples solved to illustrate process. stable work well. They can be applied more complex structures optimize them.
Abstract A new methodology is introduced in this work to simulate normal walking using a spatial digital human model. The proposed based on an optimization formulation that minimizes the dynamic effort of people during while considering associated physical and kinematical constraints. Normal formulated as symmetric cyclic motion. Recursive Lagrangian dynamics with analytical gradients for all constraints objective function are incorporated process. Dynamic balance model enforced by direct...