Evaluation of the dynamic properties of a Voice Coil Motor (VCM)

Fujii, Yusaku; Hashimoto, Seiji

doi:10.1109/mmvip.2007.4430715

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…VCM is a device which converts electric energy into mechanical energy [4] . As a kind of direct motor, voice coil actuator has nearly ideal linear dependence between force and applied current, and it can generate force with high accuracy and acceleration over an adequate stroke and wide frequency(0-20kHz) [5] without associated stiffness. Therefore, a novel voice coil actuator is designed here to set up an isolation unit for the payload.…”

Section: Model Of the Vcm Actuatormentioning

confidence: 99%

Design of active whole-spacecraft vibration isolation based on voice-coil motor

2014

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In the launching process of a spacecraft, the dynamic environment is very complex, so a vibration isolator is widely used for preventing the spacecraft from being damaged. This paper focused on a whole-spacecraft vibration isolation platform with the purpose of isolating the shock and noise transmitting directly to the spacecraft in the process of launching. The isolator is designed based on a model of circular payload adapter fitting. A voice-coil motor is designed and optimized as the active control actuator to provide proper feedback force to reduce the amplitude of the vibration, and is fixed in the whole-spacecraft vibration isolation platform, with sensors collocated on one side of the voice-coil motor in the vertical direction. The LQR control strategy is designed for the preliminary model of the isolation system in the vertical direction. Numerical simulation results are given to verify the effectiveness of the proposed isolation unit consisted of the voicecoil actuators.

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Section: Model Of the Vcm Actuatormentioning

confidence: 99%

Design of active whole-spacecraft vibration isolation based on voice-coil motor

2014

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“…Combining the parallel mechanism with the linear voice coil actuators, the representative ones are the Hexapod [20] and Stewart [21] parallel platforms used for vibration isolation benefiting from high accuracy and acceleration over a range of movement produced by voice coil actuators [22]. In order to improve the resistance capacity against the load of the platform, the size of the actuator is designed to be large, which results in high weight and low speed.…”

Section: Introductionmentioning

confidence: 99%

Design and Dynamic Modeling of a 3-RPS Compliant Parallel Robot Driven by Voice Coil Actuators

Wang

Zhang

et al. 2021

Micromachines

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In order to increase the driving force of the voice coil actuator while reducing its size and mass, the structural parameters of the coil and magnet in the actuator are optimized by combing Biot–Savart law with Lagrangian interpolation. A 30 mm × 30 mm × 42 mm robot based on a 3-RPS parallel mechanism driven by voice coil actuators is designed. The Lagrangian dynamic equation of the robot is established, and the mapping relationship between the driving force and the end pose is explored. The results of dynamic analysis are simulated and verified by the ADAMS software. The mapping relationship between the input current and the end pose is concluded by taking the driving force as the intermediate variable. The robot can bear a load of 10 g. The maximum axial displacement of the robot can reach 9 mm, and the maximum pitch angle and return angle can reach 40 and 35 degrees, respectively. The robot can accomplish forward movement through vibration, and the maximum average velocity can reach 4.1 mm/s.

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“…Voice coil motor (VCM) is a type of electro-magnetic actuator which converts electric energy into mechanical energy [5]. As a kind of linear motor, a voice coil actuator has many good features as it can generate force with high accuracy and acceleration over a sufficient range of movement [6]. Park et al, developed a four-mount active vibration isolation system using voice coil actuators and presented a comparative study between decentralized and centralized control methods [7].…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of a VCM-Based Stewart Parallel Mechanism Used for Active Vibration Isolation

et al. 2015

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This paper presents the design and experimental study of a voice coil motor (VCM)-based Stewart platform used for active vibration isolation. The high precision payloads carried on the satellites always require an extremely stable environment to work properly. Installing a vibration isolation device between the vibration sources and precision payloads is an efficient method for dissipating vibration energy. A Stewart platform with active damping is designed to isolate the vibration transferring from the satellite to the payloads in six degrees-of-freedom. First, the kinematics and dynamical equations of a Stewart platform with spherical joints at both the base and top of each leg are established with Newton-Euler Method in task space and joint space. Second, the H∞ Control Theory is employed to design a robust controller for the linearized system with parameter uncertainty, noise and sensor errors. Finally, an experimentation study on the vibration of the payload supported by a Stewart platform with VCM actuator is conducted. The feasibility and effectiveness of the vibration isolation system are verified by comparing the amplitude-frequency characteristics of the active control system with that of the passive control system and the system without damping.

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Evaluation of the dynamic properties of a Voice Coil Motor (VCM)

Cited by 5 publications

References 19 publications

Design of active whole-spacecraft vibration isolation based on voice-coil motor

Design of active whole-spacecraft vibration isolation based on voice-coil motor

Design and Dynamic Modeling of a 3-RPS Compliant Parallel Robot Driven by Voice Coil Actuators

Design and Experimental Study of a VCM-Based Stewart Parallel Mechanism Used for Active Vibration Isolation

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