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好考研真题网--国内各大高校考研真题更多考研,登陆联系QQ1425536241 更多考研,登陆联系QQ1425536241 《机械设计基础》试题填空题(每空格1分,共30分)在铰链四杆机构中,双曲柄机构的最短杆与最长杆长度之和 其余两杆长度之和。确定凸轮基圆半径的原则是在保证αmax≤[α]条件下, 。一对齿轮传动中,大、小齿轮的齿根最大弯曲应力通常是等的。在设计V带传动时,V带的型
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To discover t
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To discover t
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2007 2007东北大学机械设计考研试题一、简答题(共60分,每小题5分)1.机械零件主要的失效形式有哪些?针对这些失效形式有哪些相应的设计计算准则?答案:(1)整体断裂,表面破坏(磨料磨损,胶合,点蚀,腐蚀磨损),过大的弹性变形量,塑性变形,功能失效。(2)强度准则,刚度准则,寿命准则,耐磨性准则,振动稳定性准则。2.写出线性疲劳损伤累积理论的数学表达式,并解释式子中各符号的含义,方程的意义
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