By using multilevel substructure analysis and finite element displacement method, this system is suitable for various linear static analysis of aeronautical structures.
这一系统采用多级子结构分析技术，可以适应各种类型航空结构的线性静力分析。
2
Some practical analysis methods for reliability vector of multilevel hierarchical and network aseismic engineering systems with intermediate state and failuredependence are established.
建立同时考虑中介状态和失效相关时多级递阶和网络抗震工程系统的可靠性向量模型及其实用分析方法。
3
Based on fuzzy comprehensive discrimination analysis, one level and multilevel discrimination models are founded and inversion problem and its applications are discussed.