摘要
假设是自然科学理论思维的一种重要形式,在科学技术发展中起着重要的作用.对结构力学中刚片和链杆的假设、理想平面桁架的假设、线性弹性和小变形的假设、受弯直杆两端距离不变的假设做了介绍,讨论了各假设的合理性和必要性.在结构力学教学中,正确地分析假设、讲清楚假设的合理性和必要性是教学的关键,有助于对学生的能力培养和素质教育.
Hypothesis is an important theoretical ideology which plays an important role in the development of science and technology. In structural mechanics, the hypothesis of rigid body and rigid chain bar, the hypothesis of ideal plane truss, the hypothesis of linear-elastic model and small deformation and the hypothesis of unchanging distance on the couple sections in bending beam are introduced in the paper, and the rationality and necessity of each hypothesis are also discussed. Correct analysis and instruction of the rationality and necessity of each hypothesis are keys to structural mechanics teaching. Both are helpful to student＇s ability training and quality education.
出处
《西南民族大学学报（自然科学版）》
CAS
2005年第5期836-838,共3页
Journal of Southwest Minzu University(Natural Science Edition)
关键词
结构力学
假设
合理性
必要性
教学
structural mechanics
hypothesis
rationality
necessity
teaching
