• 应用地球物理学Ⅰ（油气及金属矿产地球物理勘探） •

### 质点的运动与波的形态

1. 核工业二九〇研究所,广东韶关 512029
• 收稿日期:2018-03-01 修回日期:2018-08-26 出版日期:2018-10-20 发布日期:2019-01-11
• 作者简介:马吉静,男,1967年出生,高级工程师,1993年毕业于桂林理工大学,应用地球物理专业,现从事地球物理勘探、检测和研究工作.

### Motion of the particle and the shape of the wave

MA Ji-jing()

1. No.290 Research Institute for Nuclear Industry,Guangdong Shaoguan 512029,China
• Received:2018-03-01 Revised:2018-08-26 Online:2018-10-20 Published:2019-01-11

Abstract:

This paper makes an in-depth study on the interaction between particles in wave propagation. In wave propagation, the interaction between particles has two forms: static action and dynamic action. The dynamic action is that: one particle acts on the other particle at a certain speed in wave propagation, and the strain instantaneously generated varies when the speed varies. The higher the speed is, the greater the strain instantaneously generated is, or the strain instantaneously generated becomes smaller. The generated action varies when the strain varies. This part of action between particles in wave propagation is called “dynamic action force”; relative to dynamic action, the static action is the static strain action between particles without speed of relative movement in wave propagation. According to the properties, characteristics, and their respective related factors of dynamic action and static action, this paper presents the mathematical expressions of dynamic action and static action, and builds a wave equation which is more complete than the original wave equation based on the mathematical expressions of dynamic action and static action. By the new wave equation, this paper studies the motion law of particles in wave propagation, and draws a conclusion which more conforms to actual phenomena and laws; the motion law of particles in wave propagation is mostly an impulse form. While the motion form of particle is the essence of wave form. In the wave propagation, “the motion of a particle is an impulse form” indicates that “the action of a force” in media is only “one wave impulse”. Then, when the wave encounters interfaces or different materials in its propagation in media, different forces are generated because of different interface properties and materials, and these forces form their own wave impulses. The combination of the wave impulses is the indication of interface properties or mechanical properties of materials. So, the wave forms can indicate interface properties or mechanical properties of materials to a certain extent. This law enables us to make a certain judgment on interface properties and material attributes by characteristics of wave forms in the engineering exploration and detection, and consequently improves the rationality and reliability in the exploration and detection work.