需要金幣： 1000 個(gè)金幣 |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：6668 |  | |
| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:轉(zhuǎn)動慣量分為定性和定量兩個(gè)方面：定性方面的轉(zhuǎn)動慣量是描述剛體在轉(zhuǎn)動中的慣性大小的物理量：它們所獲得的角加速度一般是不一樣的，轉(zhuǎn)動慣量大的物體所獲得的角加速度小，即角速度改變的慢；轉(zhuǎn)動慣量小的物體所獲得的角加速度大，即角速度改變得塊。在日常生活中有許多運(yùn)動都已轉(zhuǎn)動慣量有關(guān)，因此物體的轉(zhuǎn)動慣量時(shí)值得研究的，特別是引起誤差的因素。 測量轉(zhuǎn)動慣量的方法有很多，本文主要采用剛體轉(zhuǎn)動、扭擺、三線擺三種方法進(jìn)行研究，并對測量時(shí)引起誤差的因素給予分析討論。經(jīng)過比較分析，把每個(gè)實(shí)驗(yàn)中實(shí)驗(yàn)值同理論值比較。分析結(jié)果得出：在三個(gè)實(shí)驗(yàn)中，剛體轉(zhuǎn)動測量的相對誤差為3.0％，三線擺的相對誤差為1.5％，扭擺實(shí)驗(yàn)則達(dá)到19. 0％，三線擺實(shí)驗(yàn)是誤差最小的。在三線擺中，擺角和擺長確定后，避免了摩擦阻力和平動而帶來的誤差。 關(guān)鍵詞：剛體轉(zhuǎn)動；三線擺；扭擺；誤差分析
Abstract:Moment of inertia divided into qualitative and quantitative aspects: the qualitative aspect is to describe the rigid body moment of inertia of the rotating inertia in physical size; They generally do not get the same angular acceleration, moment of inertia obtained a large quantity of objects of small angular acceleration, angular velocity that is slowly changing; Conversely, a small moment of inertia of rigid body angular acceleration obtained large, the angular velocity change quickly. In everyday life there are many sports moment of inertia are related to Therefore, the moment of inertia is an object worthy of study, particularly the factors that caused the error. Moment of Inertia Measurement There are many ways, this paper uses rigid body rotation, torsion, three-wire pendulum of three methods, and measurement errors caused by the factors discussed given. After a comparative analysis of the experimental value of each experiment compared with the theoretical value, the results can be found: In three experiments, the rigid body rotation of the minimum relative error of measurement 3.0%, three-wire placed in the minimum relative error is 1.5%, torsion pendulum experiment, To 19.0 percent. Three-wire pendulum is the smallest error. Three-wire pendulum in the pendulum angle and length are established, which will be able to avoid friction errors brought peace move. Key words: Rigid body rotation; Three-wire pendulum; Torsion; Error analysis |
