2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)最新文献

Wall Temperature Effects on Aerothermodynamics of the Hypersonic Blunt Cone 壁面温度对高超声速钝锥气动特性的影响

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522560

K. Zhong, Peng Bi, Yumin Mou, Xinguo Wu, Wei Zhao

{"title":"Wall Temperature Effects on Aerothermodynamics of the Hypersonic Blunt Cone","authors":"K. Zhong, Peng Bi, Yumin Mou, Xinguo Wu, Wei Zhao","doi":"10.1109/ICMAE52228.2021.9522560","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522560","url":null,"abstract":"Accurate aeroheating predictions play a significant role in the design of thermal protection system. In this paper, the non-equilibrium method is implemented to investigate wall temperature effects on aeroheating characteristics of hypersonic blunt cone. Seven isothermal wall temperatures (300K~2100K) under three different incoming states are utilized to take account of the temperature effects respectively. The numerical results show that when ρ∞=1.0×10-5kg/m3 or1.0×10-3kg/m3, the stagnation heat flux increases first and then decreases gradually as the wall temperature increases. For instance, when ρ∞=1.0×10-5kg/m3, the stagnant heat flux of Tw=600K case increases by up to 4% (0.04MW/m2) compared to Tw=300K case. In actual engineering applications, wall temperature should be set reasonably according to the actual condition of vehicle surface to obtain accurate aeroheating predictions. The mechanism of monotonous variation of heat flux versus wall temperature is complicated for different flow conditions, and thus in-depth exploration is expected to be carried out in the future.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116563631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation and Experimental Investigation on Regression Rate of GOX /HTPB Hybrid Rocket Motor GOX /HTPB混合火箭发动机回归速率的数值模拟与实验研究

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522500

Zhongshu Wang, H. Tian

引用次数: 0

Review Work on Automatic Monitoring Systems in Machining Process: Means and Methods 机械加工过程自动监控系统研究综述:手段和方法

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522429

K. Mehdi

引用次数: 0

Study of the Effect of Alumina (Al2O3) Filler on the Viscoelastic Behavior and Mechanical Properties of LDPE 氧化铝(Al2O3)填料对LDPE粘弹性及力学性能影响的研究

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522582

Ahmed Saeed Hashim, N. Saad

{"title":"Study of the Effect of Alumina (Al2O3) Filler on the Viscoelastic Behavior and Mechanical Properties of LDPE","authors":"Ahmed Saeed Hashim, N. Saad","doi":"10.1109/ICMAE52228.2021.9522582","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522582","url":null,"abstract":"Viscoelastic behavior is a very important behavior in the process of Characterization to polymers therefore This paper investigates the viscoelastic behavior of LDPE reinforced by (10,20,30 and 40%) weight fraction of AL2O3 powder, the two mixing process were used the first is dry mixing mechanical the (ball mill) and second is fusion process to mixes the materials by the twin extruder, to mixes, the LDPE with the AL2O3.to obtain the new modified composite material (LDPE/ AL2O3), the sample was prepared by using a standard pressing die, The different testing equipment was used to conduct these test, creep test (WP 600), and Tensile test(WDW-5E ), and impact test(DIN EN 10045/DIN), with a constant temperature of 20 °C. SEM was used To know surface morphology for The test samples, The creep test was also performed for the sample that presented the best creep resistance at temperatures of 30, 40, and 50 °C. It was concluded that higher values of creep resistance and tensile strength occur at lower reinforcement ratios of alumina. The strengthened composite 10% alumina Made the best performance in creep resistance and the highest tensile strength and which amounted to (10MPa) while the creep performance decreased with the increase in temperature, and 50 °C was the highest temperature the sample could withstand before collapsing. Young's modulus values increased with increasing alumina enhancement, as 30% alumina recorded the highest Young's modulus value, which amounted to (200 MPa). The impact resistance values increased with the introduction of 20% alumina to value (16.835KJ / M2) and continued to rise until it reached its peak in value (23.825KJ / M2) at 30% alumina.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114583551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accommodating and Assisting Human Partners in Human-Robot Collaborative Tasks through Emotion Understanding 通过情感理解调节和协助人类伙伴进行人机协作任务

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522451

Hope Diamantopoulos, Weitian Wang

引用次数: 4

Flight Profile Modeling and Study of Algorithms for Control of Fuel System Units of an Advanced Light Helicopter 某型先进轻型直升机飞行廓线建模及燃油系统控制算法研究

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522475

Talalaeva P. I., S. S., M. V, Z. I., S. I.

引用次数: 0

Experiment Study of Failure Mode of HTPB/AP Interfacial Debonding HTPB/AP界面脱粘破坏模式实验研究

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522528

J. Gong, Kai-li Ma, Jie Zhang, Zhengze Zhang, C. Bian, Guowei Zhu, N. Yan

{"title":"Experiment Study of Failure Mode of HTPB/AP Interfacial Debonding","authors":"J. Gong, Kai-li Ma, Jie Zhang, Zhengze Zhang, C. Bian, Guowei Zhu, N. Yan","doi":"10.1109/ICMAE52228.2021.9522528","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522528","url":null,"abstract":"Macro- and micro-mechanics viscoelastic model for composite solid propellant was proposed. The adhesive energy has an important influence on the behavior of composite solid propellant. It was shown that as the adhesive energy increases, the strength of propellant increases. Meanwhile, the mechanical response of HTPB/AP interface is modeled by the bilinear cohesive zone model describing the debonding process. According to the cohesive zone model, one-side AP tester and sandwich apparatus were designed to determine the value of adhesive energy between the binder and AP, respectively. Based on the sandwich apparatus, the energy per unit area of completely interfacial debonding without MAPO is equal to 14 J/m2, and lower limit of adhesive energy per unit area of completely interfacial debonding with MAPO is determined. According to the test result of one-side AP and the numerical simulation of macro- and micro-mechanics viscoelastic algorithm, it can conclude that the failure mode of HTPB/AP in composite solid propellant is the similarly interfacial debonding, instead of fully interfacial debonding.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131606993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Burn Rate Prediction Model of Rotating Solid Rocket Motors 一种新型旋转固体火箭发动机燃速预测模型

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522468

Ran Wei, Bao Futing, Lin Sun, Meng Li

引用次数: 0

Research on Setting Method of Neutral Plane Offset of Shell Element in PRSEUS Panel Structure Modeling presseus面板结构建模中壳单元中立面偏移量设置方法研究

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522501

Yongjie Zhang, Yingying Wu

引用次数: 0

Air Combat Simulation System for Airborne Weapon Equipment Verification 机载武器装备验证空战仿真系统

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522497

Wen Chaoran, Wu Hongcheng, Wu Xinyun, Maoyujun, Yin Hang

引用次数: 0