24 Result(s)
within
Wei Hong Zhang
Engineering
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Article
Modeling and analysis of workpiece stability based on the linear programming method
After being located on a machine bed, a workpiece will be subject to gravity and cutting forces during the machining operation. In order to keep the locating precision as well as the production safety, it is n...
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Article
An extended stress-based method for orientation angle optimization of laminated composite structures
Orientation optimization plays an important role in the lay-up design of composite structures. Earlier orientation optimization methods face the main problem of huge number of design variables. Recently, a pat...
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Article
Numerical implementation of strain rate dependent thermo viscoelastic constitutive relation to simulate the mechanical behavior of PMMA
In this work, a nonlinear viscoelastic constitutive relation was implemented to describe the mechanical behavior of a transparent thermoplastic polymer polymethyl methacrylate (PMMA). The quasi-static and dyna...
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Article
A biarc-based shape optimization approach to reduce stress concentration effects
In order to avoid stress concentration, the shape boundary must be properly designed via shape optimization. Traditional shape optimization approach eliminates the stress concentration effect by using free-for...
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Article
Structural topology optimization with constraints on multi-fastener joint loads
This paper addresses an important problem of design constraints on fastener joint loads that are well recognized in the design of assembled aircraft structures. To avoid the failure of fastener joints, standar...
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Article
A Multi-point constraints based integrated layout and topology optimization design of multi-component systems
The integrated layout and topology optimization is to find proper layout of movable components and topology patterns of their supporting structures, where two kinds of design variables, i.e. the structural pse...
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Article
Study on the construction mechanism of stability lobes in milling process with multiple modes
The stability of milling process dominated by multiple modes was traditionally predicted in the time domain by only selecting the most flexible mode. This paper theoretically studies the construction mechanism...
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Article
Shape preserving design with structural topology optimization
The purpose of this paper is to demonstrate a shape preserving topology optimization design approach to suppress the war** deformation of local structural domains. As structural deformation consists of rigid...
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Article
Shape optimization of axisymmetric solids with the finite cell method using a fixed grid
In this work, a design procedure extending the B-spline based finite cell method into shape optimization is developed for axisymmetric solids involving the centrifugal force effect. We first replace the tradit...
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Article
Topology Optimization in Aircraft and Aerospace Structures Design
Topology optimization has become an effective tool for least-weight and performance design, especially in aeronautics and aerospace engineering. The purpose of this paper is to survey recent advances of topolo...
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Article
Dynamic dam** of machining vibration: a review
Machining is one of the important manufacturing processes used in industry. Dynamic interaction between the tool and the workpiece may lead to the occurrence of chatter vibrations, which are associated with pr...
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Article
Integrated layout and topology optimization design of multi-frame and multi-component fuselage structure systems
The purpose of this paper is to present an extended integrated layout and topology optimization method dealing with the multi-frame and multi-component fuselage structure systems design. Considering an aircraf...
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Article
Structural topology optimization under harmonic base acceleration excitations
This work is focused on the structural topology optimization methods related to dynamic responses under harmonic base acceleration excitations. The uniform acceleration input model is chosen to be the input fo...
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Article
A new method using double distributed joint interface model for three-dimensional dynamics prediction of spindle-holder-tool system
The cutting process stability strongly depends on dynamics of the spindle-holder-tool system, which often changes and is determined by impact hammer testing in general. In order to avoid repeated and time-cons...
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Article
Structural topology optimization for directional deformation behavior design with the orthotropic artificial weak element method
In this paper, the topology optimization method is extended to arrive at the desired deformation behavior within local structural domains by distinguishing and suppressing specific deformation in a certain dir...
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Article
Experimental validation of 3D printed material behaviors and their influence on the structural topology design
The purpose of this paper is to investigate the structures achieved by topology optimization and their fabrications by 3D printing considering the particular features of material microstructures and macro mech...
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Article
Concurrent topology optimization design of structures and non-uniform parameterized lattice microstructures
This paper presents a novel concurrent topology optimization approach for finding the optimum topologies of macrostructures and their corresponding parameterized lattice microstructures in an integrated manner...
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Article
Open AccessDetermination of optimal geometrical parameters of peripheral mills to achieve good process stability
This paper focuses on optimization of the geometrical parameters of peripheral milling tools by taking into account the dynamic effect. A substructure synthesis technique is used to calculate the frequency res...
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Article
Integrated layout and topology optimization design of multi-component systems under harmonic base acceleration excitations
The integrated optimization of component layout and structural topology is studied in this paper to improve the dynamic performance of the multi-component structure systems under harmonic base acceleration exc...
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Article
A tunable passive damper for suppressing chatters in thin-wall milling by considering the varying modal parameters of the workpiece
Removal of the materials during thin-wall milling leads to obvious change of the modal parameters of the thin-walled workpiece. This article proposes a new method for designing a passive damper to suppress the...
