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此项研究是我国“六五”期间基础研究重点项目之一,是根据我国近期及中长期国民经济发展需要提出的。分机械结构强度和机械结构振动与噪声两个方面。在机械强度方面有机械结构连接区及开孔处的应力分析、机械结构中的热弹塑性及柔性件刚度分析和疲劳设计理论在典型机械结构中的应用及分析等三个课题;在机械结构振动与噪声方面有机械结构动态响应分析及实验研究、振动的控制及载荷谱的识别和噪声源发声机理、传播及控制等三个课题。承担单位有清华大学、西安交通大学、上海交通大学、浙江大学及郑州机械研究所。先后共有174人参加了研究工作,其中中高级人员82人。三年来在国家科学基金资助下,取得了不少可喜的成果,主要有以下几个方面。
This study is one of the basic research projects during the “6th Five-Year Plan” period in China. It is based on China’s recent and long-term needs for national economic development. Points mechanical structure strength and mechanical structure vibration and noise in two aspects. In terms of mechanical strength, there are stress analysis of the mechanical structure connecting area and the opening, the analysis of thermal elasto-plasticity in the mechanical structure and the stiffness of the flexible part, and the application and analysis of the fatigue design theory in the typical mechanical structure; The vibration and noise aspects include dynamic response analysis and experimental research of mechanical structures, vibration control and load spectrum identification, and noise source sounding mechanism, propagation and control. The undertaking units include Tsinghua University, Xi’an Jiaotong University, Shanghai Jiaotong University, Zhejiang University and Zhengzhou Institute of Machinery. A total of 174 people participated in the research work, including 82 senior and middle-level personnel. In the past three years, under the funding of the National Science Foundation, we have made many gratifying achievements, mainly in the following aspects.