【摘要】 第25届中国科协年会提出了10个前沿科学问题，其中第四个重大问题难题是“非线性效应会随尺度变化吗?”.本文重点叙述工程领域的非线性效应(现象),以及工程领域中建模中的一些非线性因素，包括结构或者材料变形的非线性、非光滑系统、转轴裂纹、滑动轴承和滚动轴承非线性力、结构的滞回非线性、电路非线性、流致振动等，为探索该问题提供某些参考.更多还原

【Abstract】 The 25th Annual Meeting of the China Association for Science and Technology raised 10 cutting-edge scientific questions, of which the fourth major problem was “Will nonlinear effects change with scale?” This paper focuses on nonlinear effects(phenomena) in the engineering field, as well as some nonlinear factors in the modeling of engineering, including nonlinearities of structural or material deformation, non-smooth systems, shaft cracks, nonlinear forces of sliding and rolling bearings, structural hysteretic nonlinearity, circuit nonlinearity, flow-induced vibration, etc., providing some references for exploring this problem.更多还原