CAJ | 학술논문

爆炸分离冲击环境地面模拟试验中一般通过悬挂试验实现。试验中连接两分离部件的爆炸螺栓预紧力可能会对分离冲击响应产生影响。爆炸螺栓预紧力由螺栓安装拧紧力矩与分离下件重量产生，通过分析该力矩及该重量变化研究预紧力对响应影响。通过数值模拟、试验研究，分别在时、频域对响应影响进行分析。结果表明，爆炸螺栓安装力矩及分离下件重量在一定范围内的变化对中远场冲击响应影响较小。
폭작분리충격배경지면모의시험중일반통과현괘시험실현。시험중련접량분리부건적폭작라전예긴력가능회대분리충격향응산생영향。폭작라전예긴력유라전안장녕긴력구여분리하건중양산생，통과분석해력구급해중량변화연구예긴력대향응영향。통과수치모의、시험연구，분별재시、빈역대향응영향진행분석。결과표명，폭작라전안장력구급분리하건중량재일정범위내적변화대중원장충격향응영향교소。
The pyroshock simulation test on the ground is usually achieved through a hanging test.In the test,two separation parts are connected by explosive bolts,and the pretightening force of explosive bolts may have influence on impulse response during a pyroshock event.The pretightening force determined by the tightening torque and the weight of the lower separation part were considered as two important influential factors in the investigation.A FE numerical simulation and a hanging test were carried out.Different tightening torques and separation part weights were considered. The experimental results were analyzed both in time and frequency domain.Both the simulation and experimental results indicate that the influence of thoses two factors is limited in the mid-field and far-field of the bolts explosion.