The Numerical Analysis of Energy Density during Inertia FrictionWelding Process;
可以用类似的方法定义动量密度，能量密度等等。
2
Three control modes have been worked out, such as time-control, deformation-control and power-peak control. Each model realizes automatic control in linear frictionwelding.
采用时间控制、变形量控制和功率峰值控制三种控制方式实现了焊接过程的自动控制。
3
The inertia frictionwelding process is a non-linear process because of the interaction between temperature field and material properties as well as friction force and thrust force.