
[力] 恢複系數;回彈系數
The energy conversion and loss in collision are discussed , a formula of coefficient of restitution is obtained by energy .
讨論碰撞過程中能量轉化和能量損失,給出恢複系數的能量表達式。
A formula of rebound distance based on coefficient of restitution was deduced through kinematic analysis of raw coal(mixed gangue) in the process of oblique-impact.
通過對斜碰撞過程中原煤(混矸)球的運動分析,推導出基于碰撞恢複系數的物料塊反彈距離公式。
This paper analyses two concrete examples based on the definition of coefficient of restitution, and discovers that the definition of coefficient of restitution is not appropriate for all collisions.
在恢複系數定義的基礎上,分析了兩個具體的例子,從中發現:恢複系數的定義不適用于所有的碰撞。
The coefficient of restitution k for a direct impact of two bo***s is equal to the ratio of the relative velocities of the bo***s).
對于兩物體正碰撞的情況,恢複系數等于兩物體在碰撞結束與碰撞開始時,質心的相對速度大小的比值。
A thinking orientation on the completely inelastic collision is broken out. Two kinds of the coefficient of pseudo-restitution are drawn.
突破了關于完全非彈性碰撞的一種思維定勢,引入了兩種赝恢複系數。
The meaning and function of restitution coefficient were introduced, and some kinds of impact process models were analyzed.
論述了恢複系數的含義及作用,并在此基礎上介紹了幾種碰撞過程模型。
It is shown that the coefficient of restitution affects the inpact velocity of tamper and i.
研究表明,恢複系數影響夯錘的沖擊速度,沖擊速度顯著影響強夯的沖擊應力。
This paper presents a theoretical model for the coefficient of restitution calculation of point impact.
建立了一種計算點接觸正碰撞恢複系數的理論模型。
It can be concluded that, when only elastic impact is considered, the coefficient of restitution is determined by not only the material property o.
給出了物體與細長杆或梁彈性碰撞恢複系數的一種求解方法。
Reduction of particle restitution coefficient and increase of original particle volume fraction are benefit to the cluster formation.
顆粒彈性恢複系數越小、顆粒初始體積分數越大,則顆粒聚集現象越明顯。
恢複系數(Coefficient of Restitution)是描述兩個物體碰撞後動能保留程度的無量綱參數,其數值範圍在0(完全非彈性碰撞)到1(完全彈性碰撞)之間。該概念在工程力學、運動科學和材料研究中具有重要應用。
根據經典力學定義,恢複系數可表示為碰撞後與碰撞前的相對速度比值: $$ e = frac{v{2f} - v{1f}}{v{1i} - v{2i}} $$ 其中$v{1i}$、$v{2i}$為碰撞前速度,$v{1f}$、$v{2f}$為碰撞後速度(來源:《朗道力學》第五版)。
實際應用中,恢複系數受多種因素影響:
國際标準化組織(ISO)在運動器材檢測中,将恢複系數作為球類産品性能的核心指标。例如乒乓球的标準恢複系數需達到0.76-0.88區間(來源:ISO 9001質量認證标準附錄)。
恢複系數(Coefficient of Restitution,簡稱COR)是物理學中用于描述兩個物體碰撞後能量恢複程度的重要參數,具體解釋如下:
恢複系數定義為碰撞後與碰撞前兩物體相對速度的比值,公式為: $$ e = frac{v'_2 - v'_1}{v_1 - v_2} $$ 其中,$v_1$和$v_2$為碰撞前兩物體的速度,$v'_1$和$v'_2$為碰撞後的速度()。該系數衡量了碰撞過程中動能損失的多少。
如果需要進一步了解公式推導或具體案例,可參考物理學經典教材或工程力學文獻。
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