The principal fold age is from the Late Jurassic to the Middle Eocene in the Peri-Pacific region and is between the Middle and Late Eocene in the Tethys geotectonic domain and the intracontinental region. 主要褶皱时代在滨太平洋区是晚侏罗世至中始新世,在特提斯大地构造域和内陆区是中晚始新世之交。
A study on solving the response of nonlinear vibration system with fold linearity is presented in this paper. A finite element model in time domain is developed basded on its fold linearity. 本文研究折线型非线性振动系统响应的求解,按分段线性性质建立了分段线性的时域有限元离散模型。