共查询到18条相似文献,搜索用时 132 毫秒
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在弹簧质量不能忽略的情况下,推导了n个弹簧串联系统的动能和弹性势能具体表达式,结果表明:n个串联弹簧系统的动能与每个弹簧自身质量、劲度系数密切相关;系统的弹性势能由n个串联弹簧的等效劲度系数和串联弹簧的总伸长量决定. 相似文献
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竖直振动弹簧的质量对振动周期的影响 总被引:1,自引:1,他引:0
对竖直振动的弹簧系统进行了理论分析,得出振动频率与弹簧自身质量及振子质量的关系满足tan(√m1/kω)√m1/kω=m1/m2,在弹簧的固定点用力传感器对力的变化进行了测量,实验结果与理论分析相一致. 相似文献
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如图1,已知轻质弹簧劲度系数为k,物块质量为m,分别处于图中的A,B,C三个位置,0弹簧处于原长时平衡位置为O,当物块m放在弹簧上时平衡I 位置为O',且|OO'|=l1,当用手将物块拉伸至A位置时,系统保持静止,|AO'|=l,求系统处于C位置时的机械能. 相似文献
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[题目]
如图所示,物体m与长木板M(M>m)之间光滑,木板置于光滑水平面上,劲度系数为k的轻弹簧左端固定在木板的左端,右端与m相连.开始时,m与M均静止. 相似文献
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用实验室原有的量筒、 弹簧、 金属球、 塑料球、 玻璃棒等自制竖直弹簧上小球的运动实验装置, 观察、 思
考、 分析其运动过程中力、 加速度、 速度、 动能、 重力势能、 弹性势能等的变化, 找好转折点, 总结其规律 相似文献
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以悬细线拉拽小重物作为等效耦合弹簧,可实现2个一维单摆之间的耦合.通过改变重物的质量或细线的长度,实现等效耦合弹簧的劲度系数的改变. 相似文献
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由2个劲度系数相同的轻质弹簧与2个质量相同的弹簧振子在竖直方向耦合组成双自由度振动系统.利用计算机实测技术记录了弹簧振子在竖直方向的运动规律,实验值与理论值吻合很好. 相似文献
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Yewan Ma Hansen Chang Zhaowang Wu Yanyan Jiang Juan Li Xunchang Yin Quanjin Liu Lihua Zhang 《声与振动》2019,53(4):139-149
The energy of a spring with a well-distributed mass ms is theoretically studied in this paper. The solution of the wave equation is derived in detail, and then the kinetic energy and potential energy of the spring are studied with the wave
equation, as well as the kinetic energy of the oscillating mass M. The kinetic energy and potential energy of the spring, and total energy are numerically simulated for different ratios ms/M with considering the spring’s mass, which
makes the property of energy of the oscillating system understood easily. 相似文献
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橡皮筋滞后特性的实验分析 总被引:2,自引:2,他引:0
利用约利弹簧秤对橡皮筋的力的滞后特性进行了实验分析,并由此说明了不能用橡皮筋做测力计的物理机理,为检验弹簧的质量提供了一种实验途径及理论依据. 相似文献
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本文首先通过理论推导,建立了计其本身质量的旋转体弹簧所满足的波动方程,运用能量法给出振动弹簧的有效弹性常数。然后导出了弹簧本身质量忽略不计的极限情况下弹簧有效弹性常数的表达式。最后运用泛函极值原理简单讨论了在固定材料以及外形下弹簧圈的疏密如何分布,使弹簧达到最大有效弹性常数的最优化模型。 相似文献
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Aliakbar Moradi Marjaneh Alidad Askari Danial Saadatmand Sergey V. Dmitriev 《The European Physical Journal B - Condensed Matter and Complex Systems》2018,91(1):22
In our recent study the maximal values of kinetic and potential energy densities that can be achieved in the collisions of N slow kinks in the sine-Gordon model were calculated analytically (for N = 1, 2, and 3) and numerically (for 4 ≤ N ≤ 7). However, for many physical applications it is important to know not only the total potential energy density but also its two components (the on-site potential energy density and the elastic strain energy density) as well as the extreme values of the elastic strain, tensile (positive) and compressive (negative). In the present study we give (i) the two components of the potential energy density and (ii) the extreme values of elastic strain. Our results suggest that in multi-soliton collisions the main contribution to the potential energy density comes from the elastic strain, but not from the on-site potential. It is also found that tensile strain is usually larger than compressive strain in the core of multi-soliton collision. 相似文献
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