Dunant Halim
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View article: Development and performance characterization of an ultrasonic vibration induced electric spray microthruster for pocketqube applications
Development and performance characterization of an ultrasonic vibration induced electric spray microthruster for pocketqube applications Open
View article: Evolving the Genus of Open-Cell Mechanical Metamaterials towards Tunable Stiffness and Energy Absorption
Evolving the Genus of Open-Cell Mechanical Metamaterials towards Tunable Stiffness and Energy Absorption Open
View article: Data-Driven Tuning for Bumpless Feedforward in MIMO System with Application to Wire-bonding Machine
Data-Driven Tuning for Bumpless Feedforward in MIMO System with Application to Wire-bonding Machine Open
View article: Impact of piezoelectric driving waveform on performance characteristics of vibrating mesh atomizer (VMA)
Impact of piezoelectric driving waveform on performance characteristics of vibrating mesh atomizer (VMA) Open
View article: A compound microperforated panel backed by a panel-type resonator with a Helmholtz neck and multi-frequency resonators to improve bandwidth and low frequency sound absorption
A compound microperforated panel backed by a panel-type resonator with a Helmholtz neck and multi-frequency resonators to improve bandwidth and low frequency sound absorption Open
The present study is aimed to develop a compact sound absorber structure that can simultaneously improve low frequency sound absorption performance and broaden the half-absorption bandwidth of a microperforated panel (MPP)-type structure. …
View article: Lateral vibration attenuation of a rotor system using an axial control mechanism with resonance detuning
Lateral vibration attenuation of a rotor system using an axial control mechanism with resonance detuning Open
This work is aimed to develop a lateral vibration attenuation mechanism for a rotor system using an axial control strategy with resonance detuning, allowing the rotor to operate through its critical speeds without exciting its resonances. …
View article: Impact of Piezoelectric Driving Waveform on Performance Characteristics of Vibrating Mesh Atomizer (VMA)
Impact of Piezoelectric Driving Waveform on Performance Characteristics of Vibrating Mesh Atomizer (VMA) Open
View article: Development and Performance Characterization of an Ultrasonic Vibration Induced Electrospray Microthruster for Pocketqube Applications
Development and Performance Characterization of an Ultrasonic Vibration Induced Electrospray Microthruster for Pocketqube Applications Open
View article: On improving low-frequency sound absorption using a compound microperforated panel backed by a panel-type resonator with tuned multi-frequency resonators
On improving low-frequency sound absorption using a compound microperforated panel backed by a panel-type resonator with tuned multi-frequency resonators Open
The present work is aimed to broaden the half-absorption bandwidth and improve low frequency sound absorption of a microperforated panel (MPP) by investigating the effects of tuned multi-frequency resonators attached to a flexible panel (i…
View article: “We and malaria are already friends, becoming one,” A qualitative study on malaria risk perception in Eastern Indonesia
“We and malaria are already friends, becoming one,” A qualitative study on malaria risk perception in Eastern Indonesia Open
Background Despite the Government of Indonesia’s success in eliminating malaria in 372 out of 514 districts in 2022, the disease is still highly prevalent in Eastern Indonesia. In 2021, 95% of the total malaria cases in Indonesia were repo…
View article: ACTIVE CONTROL OF AN UNBALANCED ROTOR SYSTEM USING ACTIVE BEARING AND THE GENERALIZED DISTURBANCE ESTIMATION
ACTIVE CONTROL OF AN UNBALANCED ROTOR SYSTEM USING ACTIVE BEARING AND THE GENERALIZED DISTURBANCE ESTIMATION Open
View article: STRUCTURAL DESIGN OPTIMIZATION OF THE HIGH-SPEED GEARBOX ROTOR SYSTEM BASED ON MECHANICAL ANALYSIS
STRUCTURAL DESIGN OPTIMIZATION OF THE HIGH-SPEED GEARBOX ROTOR SYSTEM BASED ON MECHANICAL ANALYSIS Open
View article: ACTIVE VIBRATION CONTROL OF A ROTATING MECHANICAL SYSTEM WITH A RIGID COUPLING USING ACTIVE DISTURBANCE REJECTION CONTROL
ACTIVE VIBRATION CONTROL OF A ROTATING MECHANICAL SYSTEM WITH A RIGID COUPLING USING ACTIVE DISTURBANCE REJECTION CONTROL Open
View article: A Levered-Dual Response, Coulomb Damped Mechanism for Vibration Isolation and Amplification
A Levered-Dual Response, Coulomb Damped Mechanism for Vibration Isolation and Amplification Open
View article: Vibration Isolation or Amplification on a Levered-Coulomb Damped System by Alteration the Potential Energy Barrier
Vibration Isolation or Amplification on a Levered-Coulomb Damped System by Alteration the Potential Energy Barrier Open
View article: Finite Element Simulation for Predicting the Magnetic Flux Density for Electromagnetic Vibration Energy Harvester
Finite Element Simulation for Predicting the Magnetic Flux Density for Electromagnetic Vibration Energy Harvester Open
The current revolution in the field of electromagnetic vibration energy harvester requires that both wireless sensor nodes and relevant power sources be cost- and size-optimized while ensuring that, during design/fabrication of the sensor&…
View article: An Effect of Coupling Factor on the Power Output for Electromagnetic Vibration Energy Harvester
An Effect of Coupling Factor on the Power Output for Electromagnetic Vibration Energy Harvester Open
Sensors are devices that measures a change in physical stimulus by converting it into an electronic signal which can be read by a designated instrument. To overcome the real-life challenges associated with powering a sensor using conventio…
View article: Vibration sensor placement for delamination detection in a beam structure based on the vibration-based chaotic oscillator method
Vibration sensor placement for delamination detection in a beam structure based on the vibration-based chaotic oscillator method Open
This work aims to study the effect of sensor placement for delamination damage detection in a beam structure using a vibration-based chaotic oscillator method. A chaotic oscillator method is used due to its sensitivity to relatively small …
View article: Forced vibration analysis of a fibre-reinforced polymer laminated beam using the green function method
Forced vibration analysis of a fibre-reinforced polymer laminated beam using the green function method Open
This work aims to study forced vibration characteristics of Fibre-Reinforced Polymer (FRP) composite laminated beam with different properties, through a development of an analytical model using the Green function method. The forced vibrati…
View article: Vibration absorption performance of membrane-type metamaterial on a thin plate
Vibration absorption performance of membrane-type metamaterial on a thin plate Open
This work aims to investigate the vibration absorption performance of membrane-type metamaterial on a thin plate. Simulation work was conducted on membrane-type metamaterial using membrane resonators with various configurations of decorate…
View article: Prediction of bandgaps in membrane-type metamaterial attached to a thin plate
Prediction of bandgaps in membrane-type metamaterial attached to a thin plate Open
This work proposes an analytical method to analyse the bandgap location and width of membrane-type metamaterial when it is attached to a thin plate structure. This method enables the bandgap prediction of such a structure by adjusting the …
View article: Gear fault diagnosis using the general linear chirplet transform with vibration and acoustic measurements
Gear fault diagnosis using the general linear chirplet transform with vibration and acoustic measurements Open
This work is aimed to develop a parameterized time–frequency analysis method combined with vibration and acoustic measurements for gear fault diagnosis. To achieve this aim, the work introduces the combined use of the residual method and g…
View article: Gear fault diagnosis using an improved Reassigned Smoothed Pseudo Wigner-Ville Distribution
Gear fault diagnosis using an improved Reassigned Smoothed Pseudo Wigner-Ville Distribution Open
The work is aimed: (i) to propose a Joint Time-Frequency Analysis method for gear fault diagnosis by using the combined autoregressive model-based filtering and Reassigned Smoothed Pseudo Wigner-Ville Distribution (RSPWVD) methods; (ii) to…
View article: Control of Vibration Using Compliant Actuators
Control of Vibration Using Compliant Actuators Open
This work proposes a method for controlling vibration using compliant-based actuators. The compliant actuator combines a conventional actuator with elastic elements in a series configuration. The benefits of compliant actuators for vibrati…
View article: Engaging and Empowering Student Representatives as Agents of Change at The University of Nottingham Ningbo China
Engaging and Empowering Student Representatives as Agents of Change at The University of Nottingham Ningbo China Open
The Learning Community Forum (LCF) at The University of Nottingham Ningbo China is a student-led forum where views regarding the provision of teaching and learning in general are collected and voiced. While the LCF may potentially identify…
View article: Study of HEV Power Management Control Strategy Based on Driving Pattern Recognition
Study of HEV Power Management Control Strategy Based on Driving Pattern Recognition Open
In this work, an optimized HEV power management fuzzy control strategy is proposed with the aim to further improve the fuel efficiency of the rule-based control strategy and overcome the drawbacks of the conventional control strategies. Th…
View article: Comparative Study of Gearbox Fault Diagnosis by Vibration Measurements
Comparative Study of Gearbox Fault Diagnosis by Vibration Measurements Open
\nVibration analysis has been demonstrated to be one of the best tools to detect faults in a gearbox by providing abundant information about the operating condition of a gearbox. However, a gearbox generates complex vibration signals, whic…
View article: Time-Frequency Enhancement Technique for Bevel Gear Fault Diagnosis
Time-Frequency Enhancement Technique for Bevel Gear Fault Diagnosis Open
Gear failure is one of the most common causes of breakdown in rotating machineries. It is well known that vibration signals from machineries can be effectively used to detect certain gear faults. Yet it is still not an easy task to find a …
View article: Bevel Gearbox Fault Diagnosis using Vibration Measurements
Bevel Gearbox Fault Diagnosis using Vibration Measurements Open
The use of vibration measurementanalysis has been proven to be effective for gearbox fault diagnosis. However, the complexity of vibration signals observed from a gearbox makes it difficult to accurately detectfaults in the gearbox. This w…
View article: Vibration-based Fault Diagnostic of a Spur Gearbox
Vibration-based Fault Diagnostic of a Spur Gearbox Open
This paper presents comparative studies of Fast Fourier Transform (FFT), Short Time Fourier Transform (STFT) and Continuous Wavelet Transform (CWT) as several advanced time-frequency analysis methods for diagnosing an early stage of spur g…