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Dissertations / Theses on the topic 'Automatic ball balancer'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Spannan, Lars [Verfasser], and Elmar [Gutachter] Woschke. "On the dynamic modelling of automatic ball balancers applied to laboratory centrifuges / Lars Spannan ; Gutachter: Elmar Woschke." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2021. http://nbn-resolving.de/urn:nbn:de:gbv:ma9:1-1981185920-387932.

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2

Tseng, An-Xiang, and 曾恩祥. "The Dynamic Characteristics of Two-Ball Automatic Balancer." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/96016607122485166908.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>92<br>This thesis investigates the dynamic characteristics of two-ball automatic balancers. A theoretic model of a CD-R drive packed with an automatic balancer was constructed first. The governing equations of the theoretic model were derived by employing Lagrange’s equations. Then we determined the equilibrium position when the imbalance of the balls is lager than, equal to, and small than that of the optical disk. The influence of system parameters on the stability of the equilibrium positions are studied in detail. These results can be used as guide-lines for des

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3

Chih-Chiang, Chen, and 陳志強. "The Dynamic Characteristics of One-Ball Automatic Balancer." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/59505336724503927552.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>91<br>The usage of ball-type automatic balancer can effectively reduce the vibration due to the imbalance of the CD-R drive. It not only ensures the safety of the operation but also elongates the life cycle of CD-R drive. In this thesis, the dynamic characteristics of the one-ball automatic balancer are studied. The governing equations of the CD-R drive packed with an automatic balancer are derived by employing Lagrange’s Equations. The influence of system parameters on the stability of the equilibrium positions is discussed. Also the transient behavior of the syste

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4

Kang, Chan-Jung, and 康展榮. "Analysis and Design of an Automatic Ball Balancer." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/10672081691381621667.

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碩士<br>國立清華大學<br>動力機械工程學系<br>88<br>In many kinds of the automatic balancers, the ball balancer has the advantages of simple in construction, easily to assemble and high capacity to compensate automatically for the unbalance of a rotor above the critical speed. However, experimental results show that the ball balancer applied to the optical-disk drive has the characteristic of low consistence in locating the balls at right positions. To understand the reasons for low consistence, a mathematical model is first constructed for the purpose of theoretically investigating the dynamic behaviors of t

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5

Chan, Tzu-Chi, and 詹子奇. "Precision Ball Positioning of an Automatic Balancer System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/66118799646477675166.

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博士<br>國立清華大學<br>動力機械工程學系<br>100<br>本研究從理論與實驗探討滾珠自動平衡器之滾珠與軌道間的摩擦、外力激振及非線性承載底座對於滾珠精密定位性能的影響。由於滾珠定位會直接影響轉子系統的不平衡量，若不平衡量無法完全消除，會造成轉子有較大的殘餘振動量，故滾珠定位是自動平衡器性能的重要指標。首先探討滾動摩擦阻力對自動平衡器之滾珠定位與穩定度的影響，將滾珠自動平衡器分為等效轉子與等效定子兩部分，並將該平衡器視為一自主(Autonomous)系統，推導出等效轉子與滾珠的動態方程式。其中，滾珠與軌道間滾動摩擦的數學模型及其相關參數可以實驗的方式加以鑑別，運動方程式考量滾珠的驅動力與滾動阻力的關係以定義滾珠的定位，從結果可以看出，滾動摩擦係數的大小直接影響滾珠的定位範圍。另外，本研究亦探討滾珠自動平衡器受到外力激振與非線性隔振裝置的影響，國際上多數研究會先忽略外力激振與承載底座非線性的影響，然而外力與非線性特性會造成系統振幅與相位的改變，進而影響滾珠運動的驅動力。本研究用複合時間比例法求解滾珠的穩態位置並以Floquet法探討其穩定性，研究動態系統的滾動摩擦、外力激振與非線性特性對滾珠定位間的關係。數值模擬與實驗研究進一步驗證了理論推導的結果，且透過此研究亦建構出相關實驗裝置，分別是外力激振和高速攝影機觀察滾珠的定位與運動軌跡的影像辨識軟體。研究結果亦顯示，諧和外

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6

Lin, Yu-Min, and 林育民. "Study of the periodic solutions of ball-type automatic balancer systems." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/76743578712128979929.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>96<br>Many devices have been proposed for the reduction of the rotational vibrations of optical disk drives. Among these vibration-reduction devices, the ball-type automatic balancer is most popular and has been analyzed comprehensively. However, most of the studies on the automatic balancers to date focused on the local dynamical characteristics of the system about the equilibrium positions. In order to have a global analysis of the system, one has to determine the periodic solutions of the system first. The periodic motions of the balls can be classified into two

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7

Yang, Meng-wei, and 楊孟瑋. "Analysis and Design of the Dynamic Double Suspension-Automatic Ball Balancer System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/78550324359097537530.

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碩士<br>國立中正大學<br>機械系<br>92<br>This thesis focuses on the anti-vibration effect of the automatic ball balancers (ABB) on the dynamic double suspension system (DDSS). ABB is a device for reducing the unbalance mass of the optical disk device. The first step in research is building up the whole system with the mathematical model. Secondly, we employ Newton method to derive equations of motion for the equivalent stator and balls. Thirdly, numerical analyses of the system are simulated by the software Matlab. From the result, when rotor speed operated under the first resonance frequency, ABB will pr

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8

Leu, Hui-Chung, and 呂惠中. "The Effect of Rolling Resistance on the Performance of Automatic Ball Balancer." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/77781933084594470419.

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碩士<br>國立清華大學<br>動力機械工程學系<br>89<br>The rolling resistance between the balls and the wall of the automatic ball balancer (ABB) significantly influences the balancing performance of the optic disk drive system from theoretical analysis and experimental observation. This thesis focuses on the study of the effect of rolling resistance on ABB. The investigation begins from constructing the mathematical model of the ball rolling resistance. It is followed by deriving the equations of motion for the balls and equivalent stator. Then the steady-state solutions are obtained and the stability of each

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9

游本呈. "The Effect of Nonlinear Suspension on the Dynamic Performance of Automatic Ball Balancer." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/93796227309926226104.

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10

Tien, Meng-Hsuan, and 田孟軒. "Numerical and Experimental Study of Periodic Solutions of Ball-Type Automatic Balancer Systems." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/76873629505916915843.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>99<br>Under proper working conditions, a ball-type automatic balancer can adjust the positions of its balls according to the imbalance of the rotor and significantly reduces the rotational vibrations. As a consequence, ball-type automatic balancers are widely applied to rotor systems. However, when the rotational speed is above the natural frequency of the system, the balls may not settle to the perfect balancing positions but keep circulating or oscillating around the disk and result in large vibrations. Moreover the rotary periodic motions can’t be determined by t

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11

Huang, Yao-Te, and 黃耀德. "Improvement in the non-planar motion of the rotor by an automatic ball balancer." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/00645614711653912313.

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碩士<br>國立清華大學<br>動力機械工程學系<br>89<br>This thesis presents a three-dimensional dynamic analysis for the non-planar motion of the rotor equipped with an automatic ball balancer (ABB). ABB is a device for reducing the unbalanced mass of the optical disk drive. The major components of the disk drive can be divided into two categories: rotating and non-rotating parts. The rotating parts constitute “the equivalent rotor” which contains the disk, automatic ball balancer, and the rotor of the spindle motor. The non-rotating parts constitute “the equivalent stator” which consists of the foundation stru

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12

Wu, Szu-Tuo, and 吳司多. "Influence of the Automatic Ball Balancer on the Non-planer Rocking Motion of a Rotor System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/59768157055780493873.

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碩士<br>國立清華大學<br>動力機械工程學系<br>90<br>The recent two-dimensional dynamic analyses on the optic-disc drives have shown a great capability of the automatic ball balancer (ABB) for reducing radial vibration of the rotating assembly of the spindle and disk by counteracting the unbalance of the system. However, these analyses cannot provide satisfactory predictive capability on the dynamic behaviors of the practical optic-disc drives because the rocking motion of the rotor is more pronounced at high operating speeds. This thesis conducts a 3-D dynamic analysis on the system equipped with ABB in order t

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13

顏永昌. "The Dynamic Analysis and System Design for the Automatic Ball Balancer with a Double Suspension System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/chwxpg.

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14

Lin, Chi-Chun, and 林祺鈞. "The Application of Ball-type Automatic Balancer to the Suppression of Vibration of Spinning-Top Type Mechanism." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/20991528514493800427.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>93<br>Ball-type automatic balancers have been successfully employed to balance rotors of the rigid disk type. The theoretic basis and properties of automatic balancing on a single plane have been investigated in detail. However, little research has been done regarding the effects of ball-type automatic balancers on the balancing of long rigid rotors. The purpose of this thesis is to evaluate the feasibility of using ball-type automatic balancers to eliminate imbalanced vibrations of long rigid rotors. In order to simplify the problem, we study spinning-top type mech

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15

Wang, Chun-Chieh, and 王俊傑. "The dynamic analysis and system design for the optical disk drive equipped with an automatic ball balancer." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/05482509302282304036.

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碩士<br>國立清華大學<br>動力機械工程學系<br>91<br>This thesis is devoted to study the dynamic behaviors of the optical disk drive equipped with an automatic ball-type balancer. A mathematical model considering the foundation design is first established based on some proper assumptions, and employs Lagrange’s equation to derive equations of motion for balls and foundation. Then utilize the method of multiple scales to obtain the steady-state solutions. Having completed a stability analysis, the influence of each parameter on the performance of automatic balance system (ABS) in radial vibration reduction is dis

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16

Liu, Kuo-Wei, and 劉國威. "The Effects of the Anisotropy of the Suspension on the Performance of the Ball-Type Automatic Balancer." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/34871253989253110144.

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碩士<br>臺灣大學<br>機械工程學研究所<br>95<br>The Effects of the Anisotropy of the Suspension on the Performance of the Ball-Type Automatic Balancer Abstract Automatic balancers are designed to reduce the dynamic imbalance of rotating systems and reduce the associated rotational vibrations. The ball-type automatic balancer is one of the most popular automatic balancers used in optical-disk industry and has been analyzed by many researchers. However, previous studies on ball-type automatic balancers are mostly concentrated on systems with isotropic suspension. Little attention has been given to the system w

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17

Wang, Jhih-Hung, and 王志宏. "The Study of the Dynamic characteristics of the Ball-type Automatic Balancer in the steady state by Energy Method." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/an67q3.

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碩士<br>國立臺北科技大學<br>機電整合研究所<br>102<br>This thesis investigates the dynamic characteristics of ball-type automatic balancers of the theoretic model in the steady state were derived by employing Lagrange energy method. In this study, the system forces and dissipate energy of the two research indicators, which is denoted as mass and external force can help decrease the amount of residual vibration and can take that in mobile situations of the ball motion. The paper also quality the number of balls and size of the ball do a research objectives the results can learn the system in the steady state, th

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18

Chen, Hung-Sheng, and 陳宏生. "The Analysis of Relative Stabilityfor Automatic Ball Balancers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/00289381792445323645.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>95<br>The automatic ball balancer has been widely used in rotary machinery with uncertain imbalance by its capability of balancing vibration at speeds higher than the natural frequency. However, it still suffers from performance inconsistency in real operations. In this research, the theory of relative stability is applied to the study of twin-ball balancers. The maximum real part of eigenvalues from the Jacobian matrix is employed as an index for the analysis. Perturbed transient responses are also investigated to explore the relationship between this index and the

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19

Hung, Chia-Hsing, and 洪嘉興. "The Dynamic Characteristics of Multi-Ball Automatic Balancers." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/29052741871042145831.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>94<br>Ball-type automatic balancers are widely employed in the optical disk drive industry to reduce the vibrations due to the inherent imbalance of the optical disk. Although ball-type automatic balancers currently used in practice consists of several balls moving freely along a circular orbit, no studies have investigated the dynamic characteristics of ball-type balancers with more than two balls. This paper aims at studying the dynamic characteristics of a three-ball automatic balancer. Emphasis is made on the stability of the equilibrium positions of the balls w

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20

Chen, Han-Sheng, and 陳漢聲. "The Analysis of Contact Behaviors for Automatic Ball Balancers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/91628252311479843168.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>95<br>Automatic ball balancers have been widely used in rotating machinery with different imbalance due to the capability of balancing vibration at speeds higher than the system natural frequency. However, it also suffers from performance inconsistency in applications. Transient contact behaviors of the single-ball balancer are investigated in this research by Lagrange approach. The equations of motion for transient analysis are derived, and the contact model for collisions between the ball and the race is established by the Hertz theory and finite element analysis.

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21

Chang, Li-Cheng, and 張立成. "On the Transient Contact Behaviors of Automatic Ball Balancers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/34743309526845993948.

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碩士<br>臺灣大學<br>機械工程學研究所<br>95<br>Being capable of balancing vibration at speeds higher than the natural frequency, automatic ball balancers have been widely used in rotary machinery with uncertain imbalance. However, it suffers from inconsistent performance in real operations. The purpose of this research is to analyze transient contact behaviors of two-ball balancers. Using Hertz contact theory and finite element analysis, contact models are established for collisions between balls and those between balls and the race. Consistency of system performance is investigated by observing the variatio

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22

Wei, Chun-Jung, and 魏群融. "The Effect of Rotor Speed on the Performance of Automatic Ball Balancers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/79926524654029895941.

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碩士<br>國立中正大學<br>機械系<br>91<br>This thesis focuses on the effect of rotor speed on the performance of automatic ball balancers (ABB). ABB is a device for reducing the unbalance mass of the optical disk device. The first step in research is building up the whole system with the mathematical model. Secondly, employ Lagrange method to derive equations of motion for the equivalent stator and balls. Then make stability analysis for system by using multiple time scale method. Thirdly, the numerical analysis of system is simulated by the software Matlab. From the result, when rotor speed operated under

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23

Hsieh, Hsiang-Yu, and 謝祥遇. "Application of Automatic Ball-Type Balancers on a Flexible-Shaft Rotor System." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/87248605687275407453.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>103<br>To avoid large vibrations, high speed rotating machines have to be balanced precisely. When the imbalance varies with the working conditions, it is desirable to have a balancer that can suppress rotational vibrations automatically. Ball-type automatic balancers have been applied to reduce imbalance vibrations of two- and three-dimensional rigid rotors. However, the study of the application of auto-balancers to the flexible shaft rotor system is not complete. With the increasing speed of rotating machinery, the flexible deflection of the shaft becomes more and

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24

Huang, Shih-Hsuan, and 黃仕軒. "The Effects of Suspension Mechanism on the Performance of Ball-Type Automatic Balancers." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/51770548330641188015.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>93<br>When the optical disk drive operates at high rotation speed, the inherent imbalance of the optical disk may cause large vibrations and prohibit data transfer. Therefore, how to reduce the imbalance vibrations of optical disk drives has been an important research topic. Ball-type automatic balancers are employed widely in optical disk drive industry. Most of the theoretical models developed for the ball-type automatic balancer only consider the planar translational vibrations. However, in additional to the translational vibration modes, the experimental platfor

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25

Wang, Ming-Cheng, and 王明正. "Study of the Application of Ball-type Automatic Balancers to the Vibration Suppression of 2D and 3D Rotors." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/98170201134238826357.

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博士<br>國立臺灣大學<br>機械工程學研究所<br>98<br>In many industrial applications mass imbalance is the primary cause of vibrations in rotating machines, which generates undesirable noises and compromising the efficiency of machines and eventually causes damages. Therefore, the balancing of rotors is important for the high-speed rotating machines. To eliminate the imbalance vibrations due to the unavoidable manufacture tolerance, rotors are typically balanced by adding or subtracting correction masses in two planes at an initial stage. However, if the unbalance is varied depending on working conditions, such

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