带阻尼层的冲压油底壳紧固螺栓力矩研究

来源 :2018中国汽车工程学会年会 | 被引量 : 0次 | 上传用户：xinwang01

【摘要】

：

目前发动机NCH性能要求不断提高，部分发动机零部件开始应用新的静音材料来降低零件本身对发动机的噪声贡献。新材料的应用在解决噪声问题的同时也带来了新的可靠性问题，本文对某汽油发动机油底壳应用静音材料导致的紧固螺栓力矩衰减问题进行分析，针对力矩衰减的原因实施优化方案，改善紧固螺栓力矩衰减情况。

【作者】

：

李建龙唐元媛徐天添王静秋陆国欢

【机构】

：

东风汽车集团有限公司技术中心

【出处】

：

2018中国汽车工程学会年会

【发表日期】

：

2018年9期

【关键词】

：

发动机静音钢板螺栓力矩

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带阻尼层的冲压油底壳紧固螺栓力矩研究

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