钢琴的共鸣盘由音板、弦码、肋木等构成，礼制作共鸣盘时，使它的平面呈弧形曲面 以便能承受弦的垂直压力，因此弦列的垂直压力与弧形曲面的平衡问题，是设计音板必须注意的问题，当弦列垂直压力过大或选择肋木尺寸不当，将引起共鸣盘的破裂或过度的下陷，从而使钢琴音质变坏、 The piano’s resonance disc consists of a soundboard, chord, rib, etc. When the ritual makes a resonance disc, its plane has an arc-shaped surface so as to withstand the vertical pressure of the chord, so that the balance between the vertical pressure of the chord and the curved surface , Is the design of the soundboard must pay attention to the problem, when the string vertical pressure is too large or choose the right rib size, will cause the resonance disk rupture or excessive sag, so that the piano sound quality deterioration,