發(fā)布時(shí)間：2018-06-11 18:15

  本文選題：籃球運(yùn)動(dòng)員 + 投球目標(biāo)　； 參考：《計(jì)算機(jī)仿真》2017年04期

【摘要】：對(duì)籃球運(yùn)動(dòng)員投球目標(biāo)技術(shù)優(yōu)化培訓(xùn),可提高籃球運(yùn)動(dòng)的比賽成績(jī)。進(jìn)行投球培訓(xùn)時(shí),應(yīng)將籃球運(yùn)動(dòng)員投球過(guò)程中應(yīng)力、應(yīng)變變化特性進(jìn)行分析作為培洲指導(dǎo)的基礎(chǔ),但是傳統(tǒng)方法通過(guò)分析不同的邊界條件對(duì)股籃球運(yùn)動(dòng)員投球目標(biāo)技術(shù)培訓(xùn)的最大影響因素完成培訓(xùn),但是不能準(zhǔn)確分析籃球運(yùn)動(dòng)員投球過(guò)程中應(yīng)力、應(yīng)變變化特性,導(dǎo)致投球技術(shù)培訓(xùn)達(dá)不到效果。提出一種基于有限元的籃球運(yùn)動(dòng)員投球目標(biāo)技術(shù)優(yōu)化培訓(xùn)方法。上述模型先利用Mimics和Ansys軟件組建人體股骨應(yīng)力分布模型,在上述基礎(chǔ)上約束地面剛體,對(duì)模型施加2M\S的速度載荷,得到籃球運(yùn)動(dòng)員投球過(guò)程中應(yīng)力、應(yīng)變變化特性,對(duì)人體股骨上段內(nèi)側(cè)皮質(zhì)和外側(cè)皮質(zhì)間中點(diǎn)進(jìn)行應(yīng)力計(jì)算,并以計(jì)算的結(jié)果為依據(jù)對(duì)人體股骨頭、骨小梁進(jìn)行循環(huán)壓縮試驗(yàn),分析不同受力方向下股骨頭骨小梁的骨體積分?jǐn)?shù),骨小梁平均厚度,以及彈性模量循環(huán)次數(shù)等力學(xué)指標(biāo),依據(jù)上述力學(xué)指標(biāo)調(diào)整投球的姿勢(shì),完成籃球運(yùn)動(dòng)員投球目標(biāo)技術(shù)優(yōu)化培訓(xùn)。仿真結(jié)果表明,所提模型為籃球運(yùn)動(dòng)員投球目標(biāo)技術(shù)的提高提供了有效的依據(jù)。
[Abstract]:The optimization training of basketball players' pitching target technology can improve the basketball performance. In the course of pitching training, the variation characteristics of stress and strain in the course of throwing basketball players should be analyzed as the basis of the guidance of Peizhou. However, the traditional method can not accurately analyze the characteristics of stress and strain changes in basketball players' pitching process by analyzing the biggest influence factors of different boundary conditions on the training of basketball players' pitching target technology, but the traditional method can not accurately analyze the characteristics of stress and strain in basketball players' pitching process. Result in pitching technical training can not achieve results. This paper presents an optimization training method for basketball players' pitching target technology based on finite element method. Firstly, the stress distribution model of human femur was established by using mimics and Ansys software. On the above basis, the rigid body on the ground was restrained, and the velocity load of 2m\ S was applied to the model, and the variation characteristics of stress and strain in the course of basketball throwing were obtained. The stress of the medial and lateral medial cortex of human femur was calculated, and the bone volume fraction of the trabecular bone of the femoral head under different directions was analyzed according to the results of the stress calculation, and the cyclic compression tests of the femoral head and trabecula were carried out on the basis of the calculated results. The average thickness of trabeculae and the cycle times of elastic modulus were used to adjust the position of pitching according to the above mechanical indexes and to complete the optimization training of basketball players' pitching target technology. The simulation results show that the proposed model provides an effective basis for basketball players to improve the goal technology.
【作者單位】： 黃淮學(xué)院體育學(xué)院;
【分類號(hào)】：G841
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本文編號(hào)：2006214