Shaofei Jiang

Shaofei Jiang
Zhejiang University of Technology · Mechanical Engineering

Professor

About

105
Publications
22,650
Reads
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1,106
Citations
Citations since 2017
86 Research Items
1092 Citations
20172018201920202021202220230100200300
20172018201920202021202220230100200300
20172018201920202021202220230100200300
20172018201920202021202220230100200300
Introduction
Shaofei Jiang currently works at the Mechanical Engineering, Zhejiang University of Technology. Shaofei does research in Design Automation, Optimization Design and Injection Molding. Their current project is Natural Science Foundation of China U1610112, 51375451,51005211'. Zhejiang Provincial Natural Science Foundation of China under grant number: LY20E050020

Publications

Publications (105)
Article
In this study, the influence of initial curing curvature on the negative stiffness and buffering characteristics of bistable laminates was analyzed. The geometric parameters and mechanical characteristics of bistable laminates may be affected by the initial curing curvature. Initially, a geometric nonlinear finite element model is developed, and it...
Article
Magnesium alloy materials are often affected by cyclic stress, resulting in fatigue fracture due to changes in mechanical properties. In this study, external cyclic loads were introduced to simulate the loading of AZ91D (Mg-9Al-0.5Zn) parts. Tensile tests under static and external circulation loads were performed on the same specimens, and the effe...
Article
Full-text available
In micro injection molding, the cavity thickness and surface roughness are the main effects factors of polymer flow in the die designing and affect the quality of molded products significantly. In this study, the effects of cavity thickness and roughness of cavity surface were investigated mainly on polymer flow during molding and on the roughness...
Article
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High-quality concept design is a key factor of successful product performance and efficiency. Conventional conceptual design morphological chart serves to combine product concept designs. Nevertheless, the huge number of combined concept designs and how to reduce is an important research point. In this paper, concepts design combined after refineme...
Article
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At present, the qualified rate of large thin-walled magnesium alloy castings is low. In this study, the effects of mold structure and process parameters were investigated to improve the production qualification rate of castings. The filling process of die castings was simulated by numerical simulation technology to optimize their structure. On the...
Article
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Parts with microstructure arrays have been widely used in biotechnologies and optical technologies, and their performances are affected by replication uniformity. The uniformity of the microstructure is still a challenge in micro-injection molded parts and is greatly affected by the cavity thickness and process parameters. In this study, the replic...
Article
A novel high-temperature resistant carbon fiber/bismaleimide resin composite shell is proposed and its bistable characteristics are studied in megathermal environment. Bistable structures are prepared with epoxy resin composites conventionally, which prone to undergone glass transition at high temperature. The study of high-temperature resistant bi...
Article
Conceptual design evaluation is a vital stage of new product development, which determines the sustainability, safety, quality of the final design, as well as its impact on the production cycle cost and manufacturability. Notwithstanding, pertinent evaluation methods advocate quantifying the subjective assessments of conceptual schemes (CSs) by dec...
Article
A critical problem in engineering reliability analysis is obtaining an accurate failure probability with a high computational efficiency. This study aims to present failure probability estimation under the conditions of uncertain input variables and their uncertain distribution parameters. An adaptive Kriging model of failure probability with respe...
Article
A novel layup design of a multistable morphing structure was proposed in this paper. Non-symmetric / Non-symmetric / Non-symmetric (Structure 1) and Non-symmetric / Antisymmetric/ Non-symmetric / Antisymmetric/ Non-symmetric (Structure 2) connected laminates with five stable configurations each were designed and manufactured. The difference between...
Article
A data-driven computational framework combining machine learning and multi-objective optimization is developed for the design of space deployable bistable composite structures with C-cross section. A C-cross section thin-walled deployable composite structure has bi-stability compared with other deployable structures, which has attracted many attent...
Preprint
Magnesium alloy materials are often affected by cyclic stress, resulting in fatigue fracture due to changes in mechanical properties. In this study, external cyclic loads were introduced to simulate the loading of AZ91D(Mg-9Al-0.5Zn) parts. Tensile tests under static and external circulation loads were performed on the same specimens, and the effec...
Article
Conceptual design decision plays a vital role in the new product development as it affects the direction of subsequent design activities. However, pertinent literature advocates the uncertainty assessment of the terminal scheme, but ignores the function interactions and the uncertain behavior selections derived from user’s preferences in the functi...
Article
A multi-objective uncertainty optimization design methodology of hybrid composite structures considering multiple-scale uncertainties is presented in this paper. The hybrid composite structures comprise of multiple materials with different types and volume ratios of matrix and fibers. The objective is to maximize the first-order natural frequency a...
Article
As the total flow rate and passage number increase, the quality of the passage arrangement has an important influence on the thermal efficiency of a multi-stream plate-fin heat exchanger (PFHE). The operating conditions are uncertain due to changes in environmental and product requirements, which affect the design of passage arrangements. If this i...
Article
Full-text available
Bistable polymer composite structures are morphing shells that can change shape and maintain two stable configurations. At present, mainly two types of bistable polymer composite structures are being studied: cross-ply laminates and antisymmetric cylindrical shells. This paper proposes a unified semianalytical model based on the extensible deformat...
Article
Full-text available
This paper proposes a multi-objective optimization model for anti-symmetric cylindrical shell in the bionic gripper structure. Here, the response surface method is used to establish multiple surrogate models of the anti-symmetric cylindrical shell, and the non-dominated sorting genetic algorithm-II (NSGA-II) is used to optimize the design space of...
Article
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Manufacturing small- and medium-sized enterprises (SMEs) play a crucial role in the economic development and resource consumption of most regions. Conceptually, a product-service system (PSS) can be an effective way to improve the sustainability of manufacturing SMEs. However, the construction of PSSs requires enterprises to integrate a large numbe...
Article
Multistable structures are known for their high adaptability and are thereby used in various applications in the fields of aerospace, biomedical, and in packaging industries. In this paper, novel multistable structures composed of different deformation elements and new transition elements are presented. Inspired by the shape of the transition regio...
Article
Full-text available
A burn mark is a sort of serious surface defect on injection-molded parts. In some cases, it can be difficult to reduce the burn marks by traditional methods. In this study, external gas-assisted injection molding (EGAIM) was introduced to reduce the burn marks, as EGAIM has been reported to reduce the holding pressure. The parts with different sev...
Article
Full-text available
The product service system (PSS), as a design concept for integrated products and services, needs to be evaluated in the early design stage to maximize the value for stakeholders of the PSS concept, which is a crucial task for enterprises. However, existing methods focus on the ranking and value assessment of PSS evaluation criteria (e.g., quality,...
Article
A new theoretical model of variable stiffness composite structures in this paper is presented, then a finite element model is established by ABAQUS and a test specimen is manufactured to verify the accuracy. Firstly, the out-of-plane displacement of the initial and second stable configuration of theoretical and simulation results for two kinds of s...
Article
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Modeling and simulation of the morphology evolution of immiscible polymer blends during injection molding is crucial for predicting and tailoring the products’ performance. This paper reviews the state-of-the-art progress in the multiscale modeling and simulation of injection molding of polymer blends. Technological development of the injection mol...
Article
Quantifying the uncertain linguistic evaluation from decision-makers (DMs) is one of the most challenging parts in the conceptual design decision. Although fuzzy decision models have been widely used to capture potential uncertainty by assigning a fuzzy term with the certain belief, the ambiguity subjective evaluation of semantic variables with con...
Article
Beyond their colorful appearances and versatile geometries, flowers can self-shape-morph by adapting to environmental changes. Nature-inspired artificial systems that mimic their natural counterparts in function, flexibility, and adaptation find an emerging application in mobile robotics. In this study, a novel reconfigurable bionic flower made of...
Article
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Warpage is a typical defect for injection-molded parts, especially for crystalline parts molded by rapid heat cycle molding (RHCM). In this paper, a prediction method is proposed for predicting the warpage of crystalline parts molded by the RHCM process. Multi-layer models were established to predict warpage with the same thicknesses as the skin-co...
Article
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For engineering products with uncertain input variables and distribution parameters, a sampling-based sensitivity analysis methodology was investigated to efficiently determine the influences of these uncertainties. In the calculation of the sensitivity indices, the nonlinear degrees of the performance function in the subintervals were greatly redu...
Article
In this study, a novel orthogonal bistable laminated composite shell driven by magnetorheological elastomer was developed. The magnetorheological elastomer served as the actuator of the stable transition between the two stable states of the bistable structure is rapid, reversible, non-contact and continuously controllable. The experimental results...
Article
A novel bistable hybrid composite laminate embedded with bimetallic strips was designed by combining the stable-state characteristics of the bistable laminate with the temperature-sensing characteristics of the bimetallic strip described in this paper. A contactless method that deforms the bimetallic strip through the temperature field, driving the...
Article
Conceptual design evaluation plays a crucial role in new product development (NPD) and determines the quality of downstream design activities. Currently, most existing methods focus on fuzzy quantitative the evaluation information of multi-objectives in conceptual schemes selection. However, the above process ignores the various customers' preferen...
Article
Additive manufacturing (AM) technology, also known as 3D printing, has attracted extensive attention in industries due to its significant merits in complex geometry customization and supply chain cost reduction. Although plenty of researches has been conducted on the aspects of process design, control, and prototyping, the study of adapting AM in i...
Article
Conceptual design decisions form part of a multi-objective evaluation process that plays a critical role in product development. However, when there is interaction among the evaluation objectives, existing decision methods are difficult to determine the influence degree of each objective on the overall design desirability, which can lead to an unre...
Article
A multi-objective optimization technique for bistable laminates is proposed in the present study. Bistable laminates have wide application prospects as deployable structures of aerospace structures and wind turbines, but the design of their mechanical characteristics and configurations might be a hard job considering the conflicting requirements. S...
Article
This study presents the design and test of a novel self-adaptive soft gripper, integrating pneumatic actuators and bistable carbon-fiber reinforced polymer laminates. The morphology was designed using the distinct structural characteristics of bistable structures; and the stable gripping configuration of the gripper was maintained through the bista...
Article
The medical device conceptual design decision-making is a process of coordinating pertinent stakeholders, which will significantly affect the quality of follow-up market competitiveness. However, as the most challenging parts of user-centered design, traditional methods are mainly focusing on determining the priorities of the evaluation criteria an...
Article
Full-text available
The morphology of polymer blends plays a critical role in determining the properties of the blends and performance of resulting injection-molded parts. However, it is currently impossible to predict the morphology evolution during injection molding and the final micro-structure of the molded parts, as the existing models for the morphology evolutio...
Article
This paper presents cross-shaped unsymmetric fibre-reinforced cross-ply laminates with concave–convex boundaries, which have three stable configurations. The third stable equilibrium configuration is a transition state which occurs in the snap process from the first to second equilibrium configurations. The snap processes, including the first–third...
Article
Bionic soft grippers that can gently conform to the objects of any profiles and softly hold them with uniform pressure have been receiving considerable attention. To realize rapid and non-contact driving, a novel magneto-active soft gripper is developed in this paper. The gripper is embedded with magneto-active elastomer (MAE) actuators that are ma...
Article
A multiple-scale uncertainty optimization design framework is established for hybrid composite structures, where the stacking sequence and material patches are optimized simultaneously considering micro-scale uncertainty material and strength parameters. Firstly, the uncertainty propagation and performance calculation are implemented based on the f...
Article
Full-text available
Reliability is a major performance index in the electromechanical product conceptual design decision process. As the function is the purpose of product design, the risk of scheme design is easy to be caused when there is a failure (i.e., function failure). However, existing reliability analysis models focus on the failure analysis of functions but...
Article
Full-text available
Many non-probabilistic approaches have been widely regarded as mathematical tools for the representation of epistemic uncertainties. However, their heavy computational burden and low computational efficiency hinder their applications in practical engineering problems. In this article, a unified probabilistic representation approach for multiple typ...
Preprint
Full-text available
The optimum conceptual scheme is mostly selected based on qualitative decision-making evaluation methods in conceptual design stage of engineering product, which lacks quantitative verification and evaluation. To solve this problem, quantitative selection method of product conceptual scheme based on bond graph is proposed. Through analyzing the cor...
Article
Full-text available
This paper systematically studies the effect of temperature and moisture on bistable anti-symmetric composite cylindrical shells and variable stiffness composite structures in the hygrothermal environment. Based on the classical laminate theory, together with the principle of minimum potential energy, an analytical model is developed to predict the...
Article
Full-text available
In this paper, we proposed a new pneumatic actuation method inspired from a soft robot, which could drive the multi-stable carbon fiber-reinforced polymer (CFRP) structure transition among five stable configurations under air pressure. Multi-stable structure was manufactured by the carbon fiber prepreg laid in asymmetrical and anti-symmetric layup...
Article
Solar tracking model has attracted substantial academic and industrial interests owing to its high efficiency of solar panels. However, the complexity of the structure by using the mechanical structure is also increased. This paper proposes a novel solar tracking model that is composed of bistable laminates, Ni36/Mn75Ni15Cu10 bimetallic strip and o...
Article
Full-text available
The bistability of anti-symmetric thin shallow cylindrical polymer composite shells, made of carbon fiber/epoxy resin, has already been investigated based on the uniform curvature and inextensible deformation assumptions by researchers in detail. In this paper, a non-uniform curvature model that considers the extensible deformations is proposed. Fu...
Article
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The paper proposes a multi-scale uncertainty quantification framework of composite laminated plates. The micro and macro uncertainty parameters are represented by random and interval variables according to available uncertainty information. The data-driven Polynomial Chaos Expansion model is constructed, where polynomial coefficients of random vari...
Article
Full-text available
Temperature greatly influences the mechanical response of acrylonitrile butadiene styrene (ABS). The tensile behavior of ABS was explored in this study. The tensile experiments were conducted at a wide range of temperatures (from 40°C to 130°C). A model was established to reveal the quantitative relationship between temperature and tensile behavior...
Article
Full-text available
The microstructure of a molded product considerably influences its macroscopic properties. In this study, the influence of molding process on microstructure, tensile property, and surface quality was explored on the glass fiber-reinforced polypropylene (GFRPP) parts molded by rapid heat cycle molding (RHCM) and conversion injection molding (CIM). T...
Article
Full-text available
The pressure drop increases along with the decrease in the flow maldistribution in the two-stage distributing inlet headers of a plate-fin heat exchanger. To solve this issue, we proposed a new inlet header configuration with splitter plates to decrease the flow maldistribution and pressure drop simultaneously. We used computational fluid dynamic t...
Article
Full-text available
The purpose of this paper is twofold. The first is to numerically investigate and reveal the effect of polymer viscoelasticity on the retraction of a deformed drop using the lattice Boltzmann (LB) method and polymer kinetic theory. More importantly, the second is to propose a novel method to evaluate the interfacial tension between polymer melts ba...
Article
Full-text available
External gas-assisted injection molding (EGAIM) has been used to reduce the sink marks of amorphous polymer products, but that of crystalline polymer products has not yet been reported. EGAIM of a crystalline polymer product was investigated in this study, and the influences of process parameters on the sink marks were discussed based on experiment...
Article
Full-text available
The available amount of input data for uncertain parameters of composite laminated plates can vary, and the uncertain parameters can be decomposed into strong statistical variables, sparse variables and interval variables. Therefore, a new reliability optimization design methodology for composite laminated plate considering these uncertainty types...
Article
A product service system composed of products, services, hardware and software support, and stakeholders enhances the added value and competitiveness of products through resource integration. To reduce the input in servitization and improve feasibility, manufacturers tend to construct a product service system based on existing products to meet the...
Article
In this study, the mechanical properties of isotactic polypropylene (iPP) materials with different crystallinities at room and elevated temperatures were investigated. In order to obtain samples with a certain range of crystallinity, and to ensure a uniform microstructure of these samples, the iPP samples obtained by injection molding required melt...
Article
Soft robotics is an emerging research field that uses deformable materials or structures to fabricate compliant and adaptable systems through simple integrated mechanisms, thereby, enabling biomimetic behaviour. The Venus flytrap has the characteristics of excellent responsiveness and deformability, making it a promising inspirational model for the...
Article
A thermal analysis method was developed based on heating cell units to study the thermal response of electrical rapid heat cycle molding (ERHCM) molds. Heating efficiency, mold strength and uniformity of temperature distribution on the mold cavity surface were studied as a function of the distance from the center of heating rods to the mold cavity...
Article
The appearance quality of plastic parts in weld lines can be improved significantly through the rapid heating cycle molding (RHCM) process. However, there is no evaluation method for measuring the appearance quality of weld lines to determine whether they are in a good or bad condition. In this study, RHCM parts were molded with electric heating an...
Article
The introduction of gas is the principal difference between external gas-assisted injection molding (EGAIM) and conventional injection molding. In this study, the effects of gas thickness and gas delay time on polymer temperature were discussed. A modified one-dimensional transient heat conduction model of polymer was established to reveal the rela...
Article
Bistable structures, a class of highly geometrically nonlinear morphing structures, have two stable configurations that remain in their respective equilibrium positions without the continuous application of an external force. This paper aims to summarise, review, and assess the literature about the theoretical studies, driving methods, numerical si...
Article
Full-text available
As a sustainable innovation, offering additional services for products (ASP) is rapidly emerging as an increasingly important consideration for manufactories. Although additional services can increase enhance product utility, there is no guarantee that they will be accepted by customers. This may lead to a waste of product and service resources. Cu...
Article
Improving existing schemes based on performance goals can have a significant impact on the final product. During the conceptual design stage, the design information is limited and non-numerical, and thus, refinement cannot be performed via existing numerical algorithms. In addition, a conceptual scheme is formed by combining the appropriate princip...
Article
The empirical wavelet transform decomposes the signal by segmenting the Fourier spectrum and constructing an adaptive filter bank and then segments the spectrum by detecting the maximum value in the spectrum. However, the number of mono-components is unknown or difficult to confirm when processing actual gearbox fault signals, the result of decompo...
Article
This paper proposes a novel origami-inspired cube pipe structure driven by magnetic force, and investigates its deformation and trigger force using experimental and numerical methods. The cube pipe is made of polyethylene terephthalate and its hinge parts are attached by bistable anti-symmetric carbon fibre-reinforced polymer shells with magnets. T...
Article
Full-text available
The uncertainty information of design variables is included in the available representation data, and there are differences among representation data from different sources. Therefore, the paper proposes a nonparametric uncertainty representation method of design variables with different insufficient data from two sources. The Gaussian interpolatio...
Article
The uncertainty information related to uncertain structural, material and geometric parameters is included in the available input uncertainty data, and there are multiple uncertainty types when only insufficient input data is acquired from experimental or numerical analyses. In this study, an uncertainty analysis method for composite laminated plat...
Conference Paper
Full-text available
The robust topology optimization approach with uncertainties of loading magnitude and direction is investigated for continuum structures. The input loadings with uncertain magnitude and direction are decomposed using the second order Taylor series expansions, and then the response of statistical response of compliance is calculated using perturbati...