側(cè)旋球運動規(guī)律探討

應(yīng)用物理學(xué)論文編號:WLX134  字數(shù):5337,頁數(shù):14

目  錄
中文摘要 i
英文摘要 ii
目錄 iii
第一章     緒論  1
1.1  研究背景與意義 1
1.2  研究方法與系統(tǒng)描述 1
1.3  研究內(nèi)容概述 2
第二章    力學(xué)模型  3
2.1  粘滯阻力 3
2.2  壓差阻力 4
2.3  附加作用力 4
第三章    運動規(guī)律以及偏移軌跡方程 6
第四章    偏移距離方程的驗證 11
第五章    結(jié)論 12
致謝 13
參考文獻 14

摘     要

本論文提出空氣不是超流體，球表面粗糙，旋轉(zhuǎn)時表面空氣會隨之轉(zhuǎn)動。這樣，球在旋轉(zhuǎn)中前進時，旋轉(zhuǎn)方向和前進方向一致的一面，球表面帶動的空氣的流向和外面空氣流向相反，會抵消一部分空氣流速，速度變慢，而低速會導(dǎo)致壓強增大。另一面是相反的情況，所以壓強減小。兩個效果疊加在一起，球就會受到法向力，使球的運行軌跡發(fā)生彎曲。而且在這個力在一定轉(zhuǎn)速范圍之內(nèi)，與轉(zhuǎn)速成正比。本文依據(jù)流體力學(xué)的基本原理,分析了“香蕉”球形成的必要條件,根據(jù)實際情況的簡化建立了香蕉球的動力學(xué)模型,由質(zhì)心運動定理得出了動力學(xué)方程,在二級近似下求出了運動學(xué)方程，得到了弧線球的運動規(guī)律及其橫向偏離距離的定量結(jié)果。
關(guān)鍵詞：香蕉球  側(cè)旋球  流體  力學(xué)模型  偏移距離

Abstract    
    
     This paper presents the air is not super-fluid, the surface roughness, surface air rotates surged rotation. In this way, the ball in the course of rotation, rotation direction and the direction of the same side, the surface-led air flow and air flow outside the contrary, will offset part of the air flow rate, slows down, and low pressure will lead to increase. Another is the opposite situation, the pressure decreases. Superposition effects of the two together, the ball will be by force, the operation of the ball curved trajectory.Moreover, during the same power to a certain speed range, and speed is proportional. In this paper, based on the basic principles of fluid mechanics, analysis of the "banana" ball formation of the necessary conditions, in accordance with the actual situation of the establishment of a simplified model of the dynamics Xiangjiaoqiu from the center of mass movement theorem that the kinetic equation for the two approximation to the equations of motion by the arc of movement of the ball and its horizontal distance from the quantitative results.                             
Keywords：banana ball  rotary ball   fluid  mechanical model  deflection distance