Essentials of Dynamics and Vibrations
暫譯: 動力學與振動學基礎

John Billingsley

  • 出版商: Springer
  • 出版日期: 2017-07-05
  • 售價: $3,860
  • 貴賓價: 9.5$3,667
  • 語言: 英文
  • 頁數: 165
  • 裝訂: Hardcover
  • ISBN: 3319565168
  • ISBN-13: 9783319565163
  • 海外代購書籍(需單獨結帳)

商品描述

Dynamic objects move in mysterious ways. Their analysis is a difficult subject involving matrices, differential equations and the complex algebra of oscillatory systems. However, in this textbook, the author draws on his long experience of designing autopilots, robots for nuclear inspection and agricultural machine guidance to present the essentials with a light touch. The emphasis is on a deep understanding of the fundamentals rather than rote-learning of techniques. The inertia tensor is presented as a key to understanding motion ranging from boomerangs to gyroscopes. Chains of transformations unravel the motion of a robot arm.

To help the reader visualise motion, ranging from unbalanced rotors to vibrating systems with multiple modes and damping, there are abundant simulation examples on a linked website. These will run in any web browser, while their simple code is on open view for modification and experimentation. They show that nonlinear systems present no problems, so that friction damping can be modelled with ease. 

A particular problem for mechanical engineers is that the vibration topics encroach on the territory of the electrical engineer. State variables open up control theory while the solution of differential equations with sinusoidal inputs is simplified by an understanding of sine-waves as complex exponentials. The linked web site has several areas of mathematics revision to help. 

A final chapter pokes fun at the misrepresentation of dynamics in cinema productions. 


商品描述(中文翻譯)

動態物體以神秘的方式運動。它們的分析是一個困難的主題,涉及矩陣、微分方程和振盪系統的複雜代數。然而,在這本教科書中,作者利用他在設計自動駕駛儀、核檢查機器人和農業機械導航方面的豐富經驗,以輕鬆的方式呈現基本概念。重點在於對基本原理的深入理解,而非死記技術。慣性張量被提出作為理解從回旋鏢到陀螺儀運動的關鍵。變換鏈解開了機器人手臂的運動。

為了幫助讀者可視化運動,從不平衡轉子到具有多種模式和阻尼的振動系統,網站上有豐富的模擬範例。這些範例可以在任何網頁瀏覽器中運行,而其簡單的代碼則公開供修改和實驗。它們顯示非線性系統並不會造成問題,因此摩擦阻尼可以輕鬆建模。

對於機械工程師來說,一個特定的問題是振動主題侵入了電氣工程師的領域。狀態變數開啟了控制理論,而通過將正弦波理解為複數指數,微分方程的解決方案在正弦輸入下得以簡化。連結的網站有幾個數學複習區域以供幫助。

最後一章對電影製作中動力學的錯誤表現進行了調侃。