浙 江 理 工 大 学研究生往年真题
浙江理工大学
2014年硕士学位研究生招生入学考试试题
考试科目：机械设计基础B 代码：989
（请考生在答题纸上答题，在此试题纸上答题无效）
一、填空题（共20分，每空格1分）
1. 使两构件直接接触并能产生一定相对运动的联接称为。
2. 在设计V带传动时，V带的型号可根据和查选型图确定。
3. 铰链四杆机构可通过改变、改变、和选
用演化成其他形式的机构。
4.机构行程速度变化系数K与极位夹角 的关系表达式为K＝。
5．代号为6208的滚动轴承，其类型是，内径d = mm。
6．温度和压力是影响粘度的主要因素，若温度升高，则，若压力升高，则。
7. 滚子链的公称尺寸为，为避免出现过渡链节，链节数应取为。
8．轴按所受载荷性质不同，可分为三种，自行车的前轮轴、踏板链轮轴和后轮轴分别为轴、轴、轴。
9.凸轮机构运动规律中，如出现加速度无穷大变化时，机构将产生冲
击；如出现加速度有限值变化时，机构将产生冲击。
10. 范成法加工变位齿轮时，刀具的线与被加工齿轮的圆相切，并作纯
滚动。
二、单项选择题（共20分，每小题2分）
1. 平底直动从动件盘形凸轮机构，不计摩擦时，其压力角的数值（）。
A．随从动件位置改变而变化
B．随凸轮的转角改变而变化
C．随凸轮的转速改变而变化
D．始终不变
2. 增加斜齿轮传动的螺旋角，将引起（）。
A．重合度减小，轴向力增加
B．重合度减小，轴向力减小
C．重合度增加，轴向力减小
D．重合度增加，轴向力增加
3. 斜齿圆柱齿轮的标准模数和标准压力角在（ ）上。
A. 法面
B ．轴面
C ．端面
D ．主平面
4. 对于直齿圆柱齿轮传动，其齿根弯曲疲劳强度主要取决于（ ）；其表面接触疲劳强度主要取决于（ ）。
A. 中心距和齿宽；
B. 中心距和模数；
C. 中心距和齿数；
D. 模数和齿宽。
5.在一定转速下，要减轻链传动的速度不均匀性和动载荷，应（ ）。
A. 增大链条节距和链轮齿数
B ．减小链条节距，增大链轮齿数
C ．增大链条节距，减小链轮齿数
D ．减小链条节距和链轮齿数
6.在下列联轴器中，能补偿两轴的相对位移和缓冲吸振的是（ ） 。
A ．凸缘联轴器
B ．齿式联轴器
C ．弹性柱销轴器
D ．万向联轴器
7. 请问下列哪个选项对？（ ）
A ．机械运转速度不均匀系数的许用值[δ]选得越小越好，因为这样可使机械的速度波动较小。
B ．在结构允许的条件下，飞轮一般装在高速轴上。
C ．在结构允许的条件下，飞轮一般装在低速轴上。
D ．装飞轮是为了增加机械的重量，从而使机械运转均匀。
8．直齿圆锥齿轮的标准参数（m 、α、*a h 、*c ）是指其（ ）。
A ．平均分度圆处的参数值
B ．小端的参数值
C ．大端的参数值
D ．可以自定义
9. 蜗杆蜗轮传动时，其传动比不等于（ ） 。
A ．
12z z B ． 12d d C ． λtan q Z 2 D ．12
n n
10. 对于两端定位的滚动轴承应有一定的轴向间隙，目的是（）。
A．装配方便
B．避免轴受热伸长后的附加应力
C．减少发热
D．有利于润滑
三、简答题（共28分）
1. 何谓机构的压力角？其值对机构的效率有何影响？（6分）
2．机构中的“死点”与“自锁”的含义有何不同？（6分）
3.一对闭式软齿面直齿轮传动，其齿数与模数有两种方案：a）m=4mm，z1=20，z2=60；b）m=2mm，z1=40，z2=120，其它参数都一样。试问：
（1）两种方案的接触强度和弯曲强度是否相同？
（2）若两种方案的弯曲强度都能满足，则哪种方案比较好？
（须简述理由）（8分）
4. 简述螺栓联接的基本类型及其适用的场合。（8分）
四、计算如图1（a）、（b）所示机构的自由度，并说明其运动是否确定？（机构中用圆弧箭头表示的构件为原动件）。(12分)
图 1 (a) 图1（b）
五、如图2所示四杆机构，已知L BC=100mm，L CD=70mm，L AD=50mm，AD为机架。试问：(13分)
（1）如果该机构能成为曲柄摇杆机构，且AB为曲柄，求L AB的取值范围？（2）如果该机构能成为双曲柄机构，求L AB的取值范围？
图 2
六、如图3所示一偏心圆凸轮机构中，凸轮逆时针方向转动。试在图中作出（9分）
（1）凸轮的基圆；
（2）凸轮的理论廓线；
（3）凸轮从图示位置回转900时，从动件的位移 S 。
（备注：作图时可以自选比例重画此图或剪下贴至答题纸上。）
图3
七、如图4示轮系中，已知各轮的齿数z 1＝z 2＝2'z ＝z 5＝20，z 4＝60，4'z ＝55，z 6
＝25，n 1＝66r/min ，方向如图所示。求系杆H 的转速大小和方向？(12分)
图4
八、某机械在等效构件上作用的等效阻力矩为M r ，其一个工作循环中的变化规律如
图5所示，若等效驱动力矩M d 为常数，主轴平均
转速 m n =100r ／min ，要求速度不均匀系数
1.0 =δ。试求：（12分）
（1）等效驱动力矩M d 的值？
（2）最大盈亏功max W ?？
（3）安装在主轴上的飞轮转动惯量J ？（机械
其他构件转动惯量忽略不计）。
图5
A 1
九、如图6所示蜗杆传动机构中，试求：（12分）
（1）蜗轮转向？
（2）蜗杆所受的轴向力1a F 的方向？
（3）如果蜗杆传动效率8.0=η，作用在蜗杆上的转矩201=T N ·m ，4=m mm ，21=z ，501=d mm
图 6
十、若轴采用一对7000型轴承固定方式，如图7所示。已知轴承1、2的径向支反力为F r1＝4000N ，F r2＝5000N 。轴上两零件所受的轴向力A 1=900N ，A 2=400N （方向如图7所示）。轴承上的内部轴向力S 与径向载荷F r 之间的关系式为S =0.4 F r 。试计算轴承1、2所受的轴向载荷F a 1、F a 2。（12分）
图7
研究生学位英语29
考试须知 1、本次考试试卷有试题册（试卷一）和答题纸（Answer Sheet)两种，答题时间 为120分钟。 2、请考生用钢笔在Answer Sheet上写上姓名、学号、专业班级。 3、请考生在Answer Sheet上答题，写在试题册上的答案一律作废。 4、选择题每题只能选一个答案，多选作废。选定答案后，在Answer Sheet中找到相应题号，将答案对应字母（A\B\C\D）填写在题号后的括号里。注意保持字迹清晰工整，容易识别。由于字迹潦草、答案模棱两可甚至无法识别者，一律判为0分，责任由考生本人负责。 5、简答题、翻译和作文等主观题部分的答题请考生用钢笔书写在Answer Sheet 指定位置上。 6、考试结束，考生不得将试题册和答题纸带出考场。请把试题册和答题纸分别 上交监考老师。 Test 29 Part I Situational Conversations (10%) Directions:In this part, there are ten short incomplete dialogues between two speakers, each followed by four choices marked A, B, C and D. Choose the one that most appropriately suits the conversational context and best completes the dialogue．Mark your answer on the ANSWER SHEET with a single line through the center of the corresponding letter． 1. Robert: How annoying. I can’t figure out a solution to this problem. Can you help me? Anderson: __________. A. How stupid you are. The problem is too easy to disturb me. B. Well, I’m afraid I can’t at the moment. C. You shouldn’t feel annoyed. After all,it’s your own problem. D. OK. Though it’s beyond me, let me try. 2. Speaker A: Excuse me. Could you show me the way to the nearest post office? Speaker B: ________ A. OK. I’d like to go with you. B. Of course. Go down this street and turn le ft. C. Sorry. I’m busy now. Go away. D . No problem. It’s my pleasure to direct you. 3. Customer: I need some aspirin, please, and I'd also like to get this prescription filled．
研究生个人总结(包括政治思想表现,学习科研,奖惩情况)
篇一：中期考核审查表 广西大学在职研究生中期考核审核表 学院：公共管理学院填写时间： 一起交于学院，参加中期考核篇二：研究生中期考核个人的总结(两篇) 范文1 研究生中期考核个人总结 时光流逝，一转眼研究生的生活已经过去了一半。回首过去的一年多的时间，我觉得过的还是比较有意义、比较充实的，有很多收获，但同样也有失落的时候。在研二进入下半年的时候，为了使自己的工作能够顺利有序的进展下去，我想对前面的工作、生活及学习的方面进行一个小的总结，目的就是总结经验，发现不足，以利于今后继续发扬优点，补足缺点，为将来适应社会做好充分的准备，把自己的人生道路走得更稳、更好。下面我准备从以下几个方面分别对自己的这一段时间的经历进行总结。 首先在思想上，进入研究生阶段，继续保持优良的传统，继续保持党的先进性。继续认真学习马列主义、毛泽东思想、邓小平理论、三个代表”重要思想和科学发展观的精神，牢记“两个务必”，紧抓“八荣八耻”的社会主义荣辱观，贯彻“两会”的精神，不断加强自己的思想政治修养。在认真学习理论知识的同时，积极关注国家的大事，积极向周围的优秀的同学学习，积极的向周围优秀的党员学习，一直以党员的标准严格要求自己，并向党支部递交了入党申请书，成为一名入党积极分子。 在学习方面，深入学习医学专业知识，研一期间，完成各门必修和选修课程并顺利通过了期末考试。完成课程论文的过程中阅读的大量参考文献拓宽了我的专业知识面，同时培养了收集资料及对资料进行归纳总结的能力。聆听了学术大师和临床专家们的金玉良言，受益匪浅。 在第一个学期末，进入临床来，根据学校及个人发展确定了培养计划，严格按照培养计划一步步完成，按时上下班，本着爱岗敬业、学习的态度，认真完成各项任务，积极收治患者，热情服务病人，努力学习各种基础理论知识，
自考英语二历年试题真题及答案
2011年7月高等教育自学考试全国统一命题考试 英语（二）试卷 I. Vocabulary and. Structure (10 points, 1 point each) 从下列各句四个选项中选出一个最佳答案，并在答题卡上将相应的字母涂黑。 1 .Students should_____their own interests as well as do their schoolwork. A. persuade B .pursue C. persist 2. I'd like to remind you that there is no_____on the part of suspects to answer questions. A. obligation 3. He blamed his poor performance_____jet lag. B .for 4 .We_____knowledge from our families,schools,jobs,and the mass media. 5. Not until recently_____that Thompson had ben telling the truth all along. realized I realize did realize I 6. I don’t need any help at the moment,but I_____your offer. 7 .The sad condition of women working as house servants around the world received much media_____early this year. A .importance B. attention 8 .She has no hostility to us, _____can be judged from her eyes. A. that 9 .When you're_____ a crisis, it often helps to talk to someone. through in for after over on whether the message is right or wrong should at least come after _____what the message is. out out out out II. Cloze Test (10 points,1 point each) 下列短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案，并在答题卡上将相应的字母涂黑。 People in all parts of the world are observing "No Tobacco Day". It is the day 11 the World Health Organization (WHO) appeals to people to stop using tobacco products. WHO hopes if people stop smoking cigarettes or 12 tobacco for one day, they will stop permanently. Health experts have warned for years that smoking can lead to heart disease, cancer and other 13 ．WHO says diseases linked to smoking kill 14 2,500,000 persons each year. Still, many people find it 15 stopping smoking. One reason is nicotine, a substance found in cigarettes. Nicotine is a drug. Its effects are 16 those of cocaine and heroin. "No Tobacco Day" is intended for smokers and 17 who earn money from tobacco sales. So businesses are urged to stop selling tobacco products for twenty-four hours. 18 are urged not to carry advertisements for cigarettes. WHO has approved plans to help reach its 19 of a "smoke-free" world. They urge governments to take action to help 20 make money by growing other crops. They also call for improved public information campaigns about the risks of smoking. 11. A. whether B. which C. when D. what
历年英语二全国真题及答案
山东省2006年7月高等教育自学考试 英语（二）试卷【14学分】 （课程代码：0015 考试时间：150分钟） PART ONE (50 POINTS) I. V ocabulary and Structure (10points, 1 point for each item) 从下列各句四个选项中选出一个最佳答案，并在答题纸上将相应的字母填在题号后括号内。 1. Kate is a good student, . A. her math probems are always rewritten to ensure clearnness B. her math problems are always rewriting to ensure cleanness C. her math problems always rewritten to ensure cleanness D. her math problems always rewriting to ensure cleanness 2. you are to accept these facts, you’ll be. A. The better able… the less angry B. The best able… the least angry C. Better able… less angry D. Best able… least angry 3.To stay there wating was they could only do. A. how B. what C. / D. that 4. Not only rising, but unemployment was on the increase. A. the inflation rate was B. was the inflation rate C. the inflation rate is D. is the inflation rate 5. The working conditions in this factory are so terrible that the workers can no longer them. A. come up with B. put up with C. take on with D. put on with 6. When attending a formal dinner, you should look your to show your respect others. A. good … for B. best … for C. good … to D. best … to 7. He me two yuan for repairing the bicycle. A. charged B. spent C. took D. cost 8. At last, justice has and the guilty man has been punished. A. prevailed B. delivered C. endured D. faded 9. He is a(n) teacher and can teach almost all the courses of the courses of the English Department. A. stern B. potential C.objective D. versatile 10.These figures are not with the results obtained in previous experiments. A. conservative B. considerate C. consistent D. constant II. Cloze Test (10points, 1 point for each item) 下面短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案，并在答题纸上将相应的字母填在题号后括号内。 In the United States, a university 11 from a college, but they share similarities at the same time. A university is 12 larger than a college, and a university program for undergraduates usually 13 four years. College students usually 14 four years in school, too. In this way, a university and a college are 15 . A college, 16 , usually has only one or two kinds of programs. A college does not have graduate or
考研英语历年真题单词汇总资料
历年英语考研真题单词 A Abandon 放弃 Abide 忍受 Abnormalities 异常 Abolish 废除 Abound 富于、充满 Abrupt 突然的、唐突的 Absence 缺席 Absolute 完全、绝对 Abundant 丰富的、大量的 Acceleration 加速 Accept 认为、相信 Acceptance 认可 Acclaim 称赞、欢呼 Accommodate 顾及 Accommodation 膳宿、住处 Accompany 伴随 Account 描述 Accounting 会计、账单、叙述、解释、财务Accumulation 积聚 Accuracey 精确度
Accurate 精确的Acquaintance 熟人、了解、知道Acquisition 获得、收购 Activate 激发 Address 对付、处理 Adhered 坚持 Admission 承认 Adolescence 青春期 Adoption 领养 Adoptive 领养 Advisory 劝告的、咨询的、忠告Advocate 倡导者 Affirm 肯定、强化 Agenda 任务、议程Aggravate 加重、使恶化Aggressive 好斗的 Agony 苦恼 Alert 警告、留心、警惕Alien 不相容的、外国的Allegation 辩解、主张、断言Alleviated 减轻、使缓和Allocation 配置
Alternative 供选择的 Amateur 外行的、业余的Ambiguous 模棱两可的Ambivalent 矛盾的 Analogy 类比 Anecdote 轶事 Anti-xxx 反…… Applicable 可适用的、合适的Appointment 任命Apprehensive 忧虑的 Approach 途径、方法、接近、达到Appropriate 适当的 Approve 同意、赞成、批准Approximately 大约 Array 衣服、排列 Arrogant 傲慢的 Aspiration 抱负、渴望 Aspire 渴望 Assembly 装配、集会 Assess 评估 Assessment 评估
研究生一年级--政治期末复习习题
导论 1.如何理解社会认识与社会科学方法论的演变逻辑？ 社会认识即人类认识社会的主要方式，社会科学方法论即研究社会历史的方法论。 一、总体来说，社会认识与社会科学方法论的演变逻辑为：马克思主义产生之前的各种社会认识和社会理论，在总体是唯心主义的，陷入了唯心史观，即用社会意识去解释社会存在。原因在于生产规模的狭小、阶级立场的局限。马克思主义主张，研究社会历史必须研究社会赖以生存的物质条件，并根据这种物质生活条件说明政治、法律、美学、哲学、宗教等观点，即用社会存在去解释社会意识，而不是相反。这样，马克思主义的唯物史观创立了。唯物史观为研究社会历史指明了方向，提供了科学的方法论指导，在社会历史研究中实现了革命性的革命。 二、社会认识的演变逻辑为：唯心主义——唯物主义——辩证唯物主义（即马克思主义社会认识论）；自发——自觉，具体来说，神话传说（原始社会自发认识）——非理性方式（第一种自觉形式）——理性求知（批判性的）、实证方式（发展性的）、非理性方式。 三、社会科学方法论的演变逻辑为：形而上学——辩证法——唯物辩证法（即马克思主义社会科学方法论，包括：实践的、辩证的历史唯物主义哲学，剩余价值论，创立了科学社会主义学说，阶级和阶级斗争学说。） 2.如何理解社会科学方法论的性质和特点？
方法是主体依据对客体发展规律的认识而为自己规定的活动方式和行为准则，是人们实现特定目的的手段或途径，是主体接近、把握以至改造客体的工具或桥梁。 方法论是关于方法的理论，它以多种多样的方法为研究对象，探讨方法的基本原理和基本原则，为人们正确认识事物、评价事物和改造事物指明方向。 方法论具有不同的层次，如哲学方法论、科学方法论、技术方法论等。 社会科学方法论是从事科学研究的方法论，它是对各门具体社会科学研究方法的概括和总结，因而对各门社会科学研究具有普遍的指导意义。 社会科学研究的方法论特点： 第一，社会科学研究的主客体同体性。 社会科学研究者是社会中的人，他们对研究对象来说是主体，而本身又是被研究的客体。 第二，社会科学研究的价值关涉性。 社会科学研究总是包含、渗透、负载着人的价值因素。完全的“价值中立”是做不到的。 第三，社会研究的理解建构性。 社会科学研究，特别是人文科学研究，不能像自然科学那样单纯进行客观的描述和说明，只能通过理解来把握。 3.如何理解马克思主义在社会科学研究中的革命变革？
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历年研究生入学英语考试真题及标准答案
历年研究生入学英语考试真题及标准答案 2011年硕士研究生入学考试2011英语二真题及参考答案 Section I Use of English Directions： Read the following text. Choose the best word(s) for each numbered black and mark A, B, C or D on ANSWER SHEET 1. (10 points) The Internet affords anonymity to its users, a blessing to privacy and freedom of speech. But that very anonymity is also behind the explosion of cyber-crime that has 1 across the Web. Can privacy be preserved 2 bringing safety and security to a world that seems increasingly 3 ? Last month, Howard Schmidt, the nation’s cyber-czar, offered the federal government a 4 to make the Web a safer place-a “voluntary trusted identity” system that would be the high-tech 5 of a physical key, a fingerprint and a photo ID card, all rolled 6 one. The system might use a smart identity card, or a digital credential 7 to a specific computer .and would authenticate users at a range of online services. The idea is to 8 a federation of private online identity systems. User could 9 which system to join, and only registered users whose identities have been authenticated could navigate those systems. The approach contrasts with one that would require an Internet driver’s license 10 by the government. Google and Microsoft are among companies that already have these“single sign-on”systems that make it possible for users to 11 just once but use many different services. 12 .the approach would create a “walled garden” n cyberspace, with safe “neighborhoods” and bright “streetlights” to establish a sense of a 13 community. Mr. Schmidt described it as a “voluntary ecosystem” in which “individuals and organizations can complete online transactions with 14 ,trusting the identities of each other and the identities of the infrastructure 15 which the transaction runs”. Still, the administration’s plan has 16 privacy rights activists. Some applaud the approach; others are concerned. It seems clear that such a scheme is an initiative push toward what would 17 be a compulsory Internet “drive’s license” mentality. The plan has also been greeted with 18 by some computer security experts, who worry that the “voluntary ecosystem” envisioned by Mr. Schmidt would still leave much of the Internet 19 .They argue that all Internet users should be 20 to register and identify themselves, in the same way that drivers must be licensed to drive on public roads. 1． A.swept B.skipped C.walked D.ridden 2． A.for B.within C.while D.though 3． A.careless https://www.360docs.net/doc/b815188363.html,wless C.pointless D.helpless 4． A.reason B.reminder https://www.360docs.net/doc/b815188363.html,promise D.proposal 5． https://www.360docs.net/doc/b815188363.html,rmation B.interference C.entertainment D.equivalent 6． A.by B.into C.from D.over 7． A.linked B.directed C.chained https://www.360docs.net/doc/b815188363.html,pared 8． A.dismiss B.discover C.create D.improve
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AⅠ（V＋M）＝ⅡC BⅡ（V＋M）＝ⅠC CⅠ（V＋M）>ⅡC DⅡ（V＋M）>ⅠC 5、把公司全部资本分为等额股份，股东以其出资额为限对公司承担责任，公司以其全部资产对公司的债务承担责任，这是（）A无限责任公司 B股份有限公司 C有限责任公司 D合伙制企业 6、新民主主义革命的中心内容是（） A没收封建地主阶级的土地归新民主主义国家所有 B没收官僚垄断资本归新民主主义国家所有 C没收封建地主阶级的土地归农民所有 D保护民族工商业 7、毛泽东首次明确提出“新民主主义革命”这一科学概念的著作是（） A《〈共产党人〉发刊词》 B《中国革命和中国共产党》 C《新民主主义论》 D《论联合政府》 8、在中国共产党七届二中全会上，毛泽东告诫全党：“务必使同志们继续地保持谦虚、谨慎、不骄、不躁的作风，务必使同志们继续地保持艰苦奋斗的作风。”其原因主要是（） A中国共产党即将成为执政党 B党的工作方式发生了变化 C全国大陆即将解放 D中国将由新民主主义社会转变为社会主义社会
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