Payam Soltani

Payam Soltani
Birmingham City University | BCU · School of Engineering and the Built Environment

PhD

About

48
Publications
8,648
Reads
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511
Citations
Citations since 2016
21 Research Items
380 Citations
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
Additional affiliations
July 2013 - July 2015
University of Liège
Position
  • PostDoc Position
November 2012 - December 2013
Université Libre de Bruxelles
Position
  • PostDoc Position
September 2000 - October 2012
Azad University
Position
  • Lecturer

Publications

Publications (48)
Chapter
Micro/nanopositioners based on piezoelectric actuators and their role to preserve the biodiversity of the ecosystem and achieve a sustainable manufacturing sector are presented in this chapter. These positioners are precise at micro/nanometre resolution and have improved and assisted reproduction and somatic cell nuclear transfer, playing an increa...
Preprint
This paper equitably compares five different Artificial Intelligence (AI) models and a linear model to tackle two real-world engineering data-driven modelling problems with small number of experimental data samples, one with sparse and one with dense data. The models of both cases are shown to be highly nonlinear. In the case with available dense d...
Article
This paper introduces a new vibration reduction system using a magnetostrictive (Fe-Ga alloy) bimetal actuator. The proposed method (i) uses a magnetostrictive bimetal actuator instead of prevalent single material ones that need an auxiliary temperature control system and (ii) utilises a novel disturbance rejection control scheme that eliminates an...
Article
Nonlinear control laws often need to be implemented with digital hardware. Use of digital control systems leads to communication/processing delays which are widely neglected in control of mechanical systems. This paper proposes a discrete approach to feedback linearization that considers these commonly overlooked delays in design. The proposed appr...
Article
The present study, deals with fracture behavior of adhesively bonded 3D-printed joints. Polyethylene terephthalate glycol (PETG) is used to print standard specimens with different printing parameters (raster angle, raster width, and layer thickness) using fused deposition modeling (FDM) process. Moreover, adhesive layer with different thicknesses i...
Article
As a first endeavour, nonlinear dynamic response of the glass fibre-reinforced epoxy (GRE) laminated composite cylindrical shells under an impulse load is investigated based on the first-order shear deformation theory (FSDT) of shells. Green’s strain and von Kármán hypothesis are assumed to consider the geometrical nonlinearity due to large deforma...
Article
Full-text available
A new inspection technique for complex mechanical structures is proposed in this paper, where a fuzzy inference system carries out structural inspection. The inputs to the fuzzy inference system are the elements of a fault signature, an array of numbers prepared with use of below 5 kHz resonance frequencies of faultless and a number of faulty speci...
Article
Fabrication of polymeric components with complex geometry has been increased in the recent years. As additive manufacturing (AM) showed its unique capabilities, it has been widely used in production of geometrically-complex parts. Although various types of bonding have been developed, utilizing adhesive joints is common in different polymeric struc...
Article
This study deals with the optimisation of pendulum tuned mass damper parameters for different types of excitations and responses of the host structure to which it is attached. The study considers force excitation and base excitation with different types of output quantities to be minimised on the host structure. It also considers both harmonic moti...
Article
In this paper, the effect of material ageing of an elastomeric main spring (MS) inside a hydraulic engine mount (HEM) on its dynamic performance is investigated. A set of HEMs aged under realistic operational conditions are used to create an empirical material ageing model of the elastomer at two different temperatures (35 and 95 ℃) using dynamic m...
Article
In this paper, dynamic response of multilayer functionally graded graphene platelets reinforced composite (FG-GPLRC) cylindrical shells in thermal environment under an impulse load is studied based on the first order shear deformation theory (FSDT) of shells. The cylindrical shells under consideration are made up of multiple graphene platelet reinf...
Conference Paper
Full-text available
A robust design of tuned mass dampers (TMDs) must consider the influence of uncertainties associated with structural parameters to avoid detuning and malfunctioning. The existing robust equal-peak approach [1] accounts for uncertainties in stiffness and damping of single degree-of-freedom (SDOF) host structures but may lead to a high computational...
Article
Full-text available
Polymeric engine mounts have been widely used as vibration isolators in vehicles. In general, understanding ageing-dependent stiffness is important for life cycle design. In this paper, a new experimental procedure is developed to study the ageing mechanisms of service-aged engine mounts using digital image correlation measurements. The present con...
Article
Full-text available
Hydraulic engine mounts (EMs) are key elements in an automotive vehicle suspension system that typically experience a change of their designed function during their working lifetime due to progressive material ageing, primarily from the elastomeric component. Ageing of the EM, resulting from severe and continuous mechanical and thermal loads, can h...
Conference Paper
Structures usually experience deterioration during their working life. Oxidation, corrosion, UV exposure, and thermo-mechanical fatigue are some of the most well-known mechanisms that cause degradation. The phenomenon gradually changes structural properties and dynamic behaviour over their lifetime, and can be more problematic and challenging in th...
Article
The objective of this paper is to derive an approximate closed-form solution to the H_inf optimization of piezoelectric materials shunted with inductive-resistive passive electrical circuits in the presence of damping in the primary structure. To this end, the homotopy perturbation method (HPM) is utilized in which the zero-order solution is the re...
Article
Full-text available
Structures usually experience deterioration during their working life. Oxidation, corrosion, UV exposure, and thermo-mechanical fatigue are some of the most well-known mechanisms that cause degradation. The phenomenon gradually changes structural properties and dynamic behaviour over their lifetime, and can be more problematic and challenging in th...
Conference Paper
Structures usually experience deterioration during their working life. Oxidation, corrosion, UV exposure, and thermo-mechanical fatigue are some of the most well-known mechanisms that cause degradation. The phenomenon gradually changes structural properties and dynamic behaviour over their lifetime, and can be more problematic and challenging in th...
Article
Pendulum tuned mass dampers (PTMDs) are used to passively mitigate the vibrations of tall structures and buildings. The main objective of this short note is to introduce analytical formulae for the optimum design of the linear PTMD coupled to an undamped primary system. Den Hartog's equal peak method is applied to derive the optimum design. With th...
Article
This paper proposes a piezoelectric vibration absorber, termed the nonlinear piezoelectric tuned vibration absorber (NPTVA), for the mitigation of nonlinear resonances of mechanical systems. The new feature of the NPTVA is that its nonlinear restoring force is designed according to a principle of similarity, i.e., the NPTVA should be an electrical...
Article
Nonlinear vibration of a fluid-filled single walled carbon nanotube (SWCNT) with simply supported ends is investigated in this paper based on Von-Karman's geometric nonlinearity and the simplified Donnell's shell theory. The effects of the small scales are considered by using the nonlocal theory and the Galerkin's procedure is used to discretize pa...
Article
The objective of this paper is to propose an exact closed-form solution to the optimization of piezoelectric materials shunted with inductive-resistive passive electrical circuits. Realizing that Den Hartogʼs method which imposes fixed points of equal height in the receptance transfer function is approximate, the parameters of the piezoelectric tun...
Conference Paper
Full-text available
Mechanical tuned vibration absorbers (MTVAs) are devices used to mitigate the vibrations of a structure around one of its eigenfrequencies. By introducing an additional degree of freedom in the structure, MTVAs allow to split the peak of interest in the frequency response in two peaks with lower amplitudes. The design of MTVAs is usually based on t...
Conference Paper
Full-text available
This paper studies linear and nonlinear piezoelectric vibration absorbers that are designed based on the equal-peak method. A comparison between the performance of linear mechanical and electrical tuned vibration absorbers coupled to a linear oscillator is first performed. Nonlinearity is then introduced in the primary oscillator to which a new non...
Data
The nonlinear vibrational model of a slightly curved single-walled carbon nanotube (SWCNT) resting on a Winkler-type elastic foundation is developed using nonlocal Euler-Bernoulli elastic theory. The SWCNT is assumed to vibrate under an external harmonic electric force field and an analytical solution is proposed to obtain the nonlinear resonant fr...
Article
The nonlinear vibrational model of a slightly curved single-walled carbon nanotube (SWCNT) resting on a Winkler-type elastic foundation is developed using nonlocal Euler- Bernoulli elastic theory. The SWCNT is assumed to vibrate under an external harmonic electric force field and an analytical solution is proposed to obtain the nonlinear resonant f...
Article
The purpose of this study was to find experimentally the effects of concave and convex major cutting edge (Helical & Recon point) and chisel point on the drilling composite. Due to composite materials are natural orthotropic, so gradually these materials are substituted by some metals such as steel that are used in manufacturing automobile and aero...
Article
The present paper proposes a new equation utilizing the nonlocal Euler-Bernoulli beam model to investigate the linear transverse vibration of an embedded single-walled carbon nanotube (SWCNT) which incorporates an extra-added nanoparticle. The elastic behavior of the surrounding medium is simulated by the Pasternak-type foundation model. Hamilton's...
Conference Paper
Full-text available
Nonlocal plate continuum model is utilized to investigate the nonlinear vibration behaviour of a singlelayer nanoplate. The isotropic nanoplate is assumed to be embedded on a Pasternak-type elastic foundation with the simply supported boundary conditions. The Hamilton’s principle is applied to derive the governing equation of motion,and the nonline...
Article
Full-text available
In this paper, an experimental and numerical investigation was conducted to study the effect of geometric parameters on the stress and strain distributions in aluminium alloy 2024-T3 single-lap bolted plates. Three-dimensional (3-D) finite element (FE) models were developed using ANSYS FE code for different width and edge distance to hole diameter...
Article
Based on the nonlocal continuum theory, transverse vibration of a single-walled carbon nanotube (SWCNT) conveying fluid with immovable support conditions is investigated. Unlike previous similar studies, the SWCNT is assumed to be not perfectly straight and initially includes a slight geometrical curvature as an imperfection. The SWCNT is assumed t...
Article
In this paper, nonlocal Euler-Bernoulli beam theory is applied to investigate the dynamical behavior of a single-walled carbon nanotube (SWCNT) with an extra added nanoparticle. The SWCNT is assumed to be embedded on a Winkler-type elastic foundation with cantilever boundary condition. This configuration can be used as a nano-mass sensor which work...
Article
Full-text available
The transverse vibration of a single-walled carbon nanotube (SWCNT) with light waviness along its axis is modeled by the nonlocal Euler-Bernoulli and Timoshenko beam theory. Unlike the Euler-Bernoulli beam model (EBM), the effects of transverse shear deformation and rotary inertia are considered within the framework of the Timoshenko beam model (TB...
Article
In this article, the free transverse vibrational behaviour of a multiwall carbon nanotube (MWNT) surrounded by a Pasternak-type elastic medium has been determined using a very generalized model. The model has been made on the basis of Timoshenko elastic beam theory which allows the effects of shear deformation and rotary inertia and supports non-co...
Article
Full-text available
Due to the nonlocal Euler Bernoulli elastic beam theory, the e®ects of rippling deformation on the bending modulus and the structural bending instability of a single-walled carbon nanotube (SWCNT) are investigated. The nonlinear vibrational model of a cantilevered SWCNT is solved using the perturbation method of multiscales. The nonlinear resonant...
Article
A nonlinear model is developed for the vibration of a single-walled carbon nanotube (SWCNT) based on Eringen’s nonlocal elasticity theory. The nanotube is assumed to be embedded in a Pasternak-type foundation with simply supported boundary conditions. The nonlinear equation of motion is solved by the energy balance method (EBM) to obtain a sufficie...
Article
Full-text available
In this study, for the first time, the transverse vibrational model of a viscous-fluid-conveying single-walled carbon nanotube (SWCNT) embedded in biological soft tissue is developed. Nonlocal Euler–Bernoulli beam theory has been used to investigate fluid-induced vibration of the SWCNT while visco-elastic behaviour of the surrounding tissue is si...
Conference Paper
Full-text available
In this paper, a nonlocal elastic Euler-Bernoulli beam model is developed for self-excited transverse vibration and instability of the viscous-fluid-conveying single-walled carbon nanotube considering the thermal effect, based on the theory of thermal elasticity mechanics. The nanotube is assumed to be embedded in a Winkler-Pasternak elastic founda...
Article
Numerical simulations based on finite element modelling are increasingly being developed to accurately evaluate the tensile properties of GLARE (GLAss fibre REinforced aluminium laminates). In this study, nonlinear tensile behaviour of GLARE Fibre Metal Laminates (FML) under in-plane loading conditions has been investigated. An appropriate finite e...
Conference Paper
Full-text available
An interesting field in the nano science studies, is based on modeling and simulation of vibrating carbon nanotubes (CNTs) in an elastic medium to predict the natural frequencies and associated mechanical properties. Meanwhile, in all of these models, the nanotube was assumed to be perfectly straight. However, photomicrographs of nanocomposites ind...
Conference Paper
Full-text available
Spurred by the discovery of carbon nanotubes in 1991 and the succeeding neuropsychology revolution, there has been a marked increase in the volume of scientific and engineering literatures. Carbon nanotubes (CNTs) have aroused great interest in the scientific community because of their exceptional mechanical, electronic, electrochemical, and therma...
Article
Full-text available
Based on the rippling deformations, a nonlinear continuum elastic model is developed to analyze the transverse vibration of single-walled carbon nanotubes (SWCNTs) embedded on a Winkler elastic foundation. The nonlinear natural frequency has been derived analytically for typical boundary conditions using the perturbation method of multi-scales. The...
Conference Paper
Full-text available
In this paper, the transversely vibrating governing equations of a multi-wall carbon nanotube (MWNT) on a Winkler elastic foundation have been derived. The model includes the effects of shear deformation (SD) and rotary inertia (RI) using Timoshenko beam theory for short nanotubes. The van der Waals interaction between the tubes is taken into accou...
Conference Paper
Full-text available
There are several studies on modelling and simulation of vibrating CNTs in an elastic medium to predict the natural frequencies and associated mechanical properties. In all of these models, the nanotube was assumed to be perfectly straight. However, photomicrographs of nanocomposites indicate that CNTs may exhibit significant waviness. Significance...

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Projects

Projects (2)
Project
To develop low cost vibration-based methods with use of artificial intelligence techniques for fault diagnosis of mechanical parts and structures
Project
A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science". Accepting paper. Deadline for manuscript submissions: 30 June 2021. https://www.mdpi.com/journal/sustainability/special_issues/AdditiveManufacturing_3D-printedParts