钢丝的剪切模量与摆长及扭转角度关系的研究
The Study on the Relationship between the Shear Modulus of Steel Wire and Swing Length and Torsion Angle

研究材料的剪切模量与摆长及在外力作用下的扭转角之间的关系。通过剪切模量和转动惯量实验测量不同扭转角度、不同长度钢丝的扭转振动周期以研究扭转角和摆长对实验结果的影响。使用origin软件对测量数据进行分析，得出钢丝扭转角大于300？时能保证良好的实验测量精度。
The relationship between the shear modulus and the pendulum length, the torsion angle under external force is studied. The influence of torsion angle and swing length on the experimental results is studied that the torsional vibration period of steel wire with different torsion angle and length are measured by shear modulus and moment of inertia experiment. The conclusion is obtained that when the torsion angle of steel wire is greater than 300 degrees, the experimental measurement accuracy can be guaranteed using origin software to analyze the measured data.