Chapter 1105: Double shot


    After Chang Haonan nodded in agreement, everything that happened next moved very quickly.


    Just three days later, the Academy of Sciences and the Academy of Engineering announced the candidates for the second round of the 2003 academician election.


    In this era, although both houses have established their own official websites, out of habit, they will first disclose their information to the public through print media, such as science news.


    Therefore, it was not until Chang Haonan returned to Beijing and returned to the Aviation Power Group that he saw his name in the two documents sent by Zhu Linyu personally -


    twice.


    "Mr. Zhu, this..."


    He pointed at the two forms in front of him with a look of astonishment, and for a moment he didn''t even know how to speak.


    It would be a lie to say that Chang Haonan has never thought about the double academicianship.


    However, considering the specific situation of the previous batch of double academicians and his current age, he has always thought that the possibility is not high.


    The result was a complete surprise.


    "There''s no other way... You only have one person, and everyone wants to take advantage of it, so isn''t this the only way left..."


    Zhu Linyu, who was sitting opposite, sounded a little helpless in his tone, but there was a trace of undetectable cunning in his eyes.


    Chang Haonan noticed this, lowered his head and took a closer look, and found a clue -


    The work units displayed on the two tables are different.


    One is Beijing University of Aeronautics and Astronautics.


    The other one is the Aviation Power Group.


    Chang Haonan realized it instantly.


    How can "everyone" want to take advantage of this?


    Obviously the other party wants to take advantage of it.


    However, the Aviation Power Group belongs to the original family after all, so he would not expose it in public.


    After some joking, Zhu Linyu took the lead in calming down his expression and got down to business:


    "Comrade Haonan, it is best for you to stay in the capital for a while during the next period of time."


    Although Chang Haonan had this intention, he was still a little surprised when he heard the other party specifically made this request:


    "How to say?"


    "Because there were many problems with selection based on written materials in the past, starting from this year, some departments of the two colleges may conduct a pilot program to invite candidates to conduct on-site work reports and defenses."


    Zhu Linyu explained:


    "Although the materials reported to you are already very convincing, after all... it is a special situation, so there is no guarantee that we will not find you, so it is best to be prepared."


    "Don''t worry."


    Chang Haonan nodded:


    "The work in Haojing has been basically straightened out. In the next few months, I should prepare several new projects in the capital."


    Zhu Linyu''s eyes suddenly widened:


    "Any new projects?"


    For him, Chang Haonan''s answer just now was a mixed blessing—


    Chang Haonan''s academician title is already guaranteed. It is naturally a good thing to have new ideas at this juncture, which will help to strike while the iron is hot and leverage more resources.


    But on the other hand, the Aerospace Power Group has only been established for a few years, and its research and development capabilities are still limited.


    No matter how many resources there are, if there are not enough people to carry out research, it will only be in vain.


    At present, supporting the research and development of two new models (AE1500, QC300) and the improvement of several other existing models at the same time is basically the end.


    If we really have another big job, I''m afraid we will have to face the dilemma of having more than enough energy but not enough energy.


    "Don''t worry...it''s not about making a new model."


    Seeing Zhu Linyu''s twisted expression, Chang Haonan roughly guessed what the other person was thinking, so he smiled and comforted:


    "In terms of the production of AE1500, we still need some new technologies that have been less studied in the past, or even completely blank... I am going to use the experience of Torch-C.B. Ferrari to solve it in advance."


    "The other thing is some longer-term considerations. With the current conditions, we can only do some preliminary research..."


    Zhu Linyu also relaxed after hearing this and quickly expressed his stance:


    "In short, if there is any need for support, the group level will definitely do its best to meet your requirements!"


    Counting Chang Haonan, three people from the Aviation Power Group entered the second round of academician selection this year.


    The other two are naturally Yan Zhongcheng and Jiang Fuhe who returned home in 2001.


    But objectively speaking, it is not too stable.


    And given their age, even if they are successfully awarded, they are unlikely to be on the front line of research and development again.


    Therefore, the level of emphasis at the group level is naturally different.


    But Chang Haonan is very normal about this:


    "It''s not necessary...for adaptive processing, Torch Group itself has a certain research and development foundation, and it can also get support from the Seiko Project."


    "As for the preliminary research... at least for now, just leave it to the Torch Laboratory."


    The first two students brought out by Chang Haonan have now graduated.


    Wang Jie naturally stayed at the school to teach, and although Li Yabo was still in the postdoctoral stage, he only had one year left before leaving the university.


    The three lecturers that year also became associate professors one after another and obtained doctoral supervisor qualifications.


    The scale and research capabilities of the entire research group have naturally become much larger, and they can conduct some independent research without Chang Haonan.


    …


    The second-round candidate information announced by both houses of Congress has predictably triggered some controversy. No one dared to question Chang Haonan''s own qualifications for election.


    But entering both lists at the same time still surprised many people.


    After all, the quota for selection is limited each year, and if you take up two of them, it will inevitably affect the chances of other candidates.


    Until the end of October, a station C evening news took about 3 minutes to conduct a special report on the 2003 academician selection.


    It was specifically mentioned that in order to ensure the authority of the Department of Engineering Management, some academicians or academician candidates of the Academy of Sciences who have made widely recognized achievements in engineering project practice will be allowed to join the department.


    Such a statement naturally represents the official attitude.


    As a result, the apparent controversy quickly subsided.


    However, the pressure on the Engineering Academy will not completely disappear...


    However, the rumors from the outside world did not affect Chang Haonan''s work plan.


    After the National Day holiday, he submitted a project called "Thin-walled Complex Workpiece Processing Modeling and Online Compensation Research" to his superiors. The main funders were the Seiko Planning Fund Committee, the Aerospace Power Group, and the Aerospace Technology Group.


    The ones actually responsible for the research and development tasks are Torch Laboratory and C.B. Ferrari.


    As part of the project preparation phase, Chang Haonan also returned to the capital at the end of October and quickly approached Yang Weihua, the head of R&D of Torch-C.B. Ferrari in China, as well as Yang Weihua, who has been responsible for the development and maintenance of digital industrial control systems. Wei Yongming.


    The two of them are also the highest-level technicians in the field of mechanical processing within the entire Torch Group system...


    "To be honest, I thought you, Mr. Chang, would be busy preparing for the second round of reviews right now..."


    Wei Yongming and Chang Haonan have known each other for a long time, so they don''t seem so nervous in front of the latter.


    "Actually, you''re right to say that."


    Chang Haonan smiled and said while sorting out the things he just took out of his briefcase:


    "I''m really preparing for the second round of reviews recently."


    "ah?"


    Wei Yongming originally just wanted to make a joke and find an angle to compliment him.


    But I never expected to get such an answer:


    "Then today..."


    Chang Haonan lightly tapped the information on the table:


    "For me, doing the project well is the best preparation for the second round of review."


    “…”


    Facing his boss who was pretending to be invisible, Wei Yongming froze in his seat for a while, and finally had to give him an expression of admiration.


    And Yang Weihua, who had been silent just now, was also relaxed a lot by the exchange in front of him.


    As a result, the three people quickly entered the main topic of today''s discussion.


    "As for the research background and implementation requirements of this new project, I think you two should have already read it."


    Chang Haonan didn''t even lower his head, flipping through the information in front of him to a page marked "Cutting Error Modeling", and then continued:


    "In general, as my country''s industrial production capacity continues to develop towards high-end, it is necessary to eliminate...or at least reduce the reliance on manual steps in the processing of complex parts..."


    “…”


    Chang Haonan spent about ten minutes briefly introducing the problems faced during the processing of AE1500 fan blades and the basic ideas of adaptive processing.


    The other two were also experts and knew a lot about the problems in semi-automated processing, so they quickly understood what the former meant.


    However, they don''t seem very optimistic about the project itself.


    After pondering for a moment, Yang Weihua spoke first:


    "In recent years, we have also cooperated with the Italian side to conduct technical research on intelligent processing, but it is still difficult to completely determine the amount of deformation between the semi-finished product and the original design during the processing without manual participation... This One thing, Director Wei should know more carefully."


    Wei Yongming, who was suddenly cueed, also nodded:


    "Mr. Chang, you just mentioned in-situ detection... The current mainstream technical route is to use the key feature points of the workpiece''s surface as the positioning reference, and then use a three-dimensional coordinate detector for measurement. It is indeed feasible for products with relatively regular shapes, but if If the geometric outline of the surface of the processing object is not clear enough, then the accuracy of simple digital measurement is not optimistic..."


    "In addition, I have also tried to improve on the image comparison algorithm you developed before, using multi-dimensional views to judge the similarity between products and designs... However, this requires unimaginable computing power support, at least for now. The level of computer hardware is not yet possible..."


    “…”


    Although the feedback he received was all about the obstacles he is currently facing, Chang Haonan is generally quite pleased—


    Torch-C.B. Ferrari is not satisfied with its absolute dominant position in the domestic market, but insists on conducting cutting-edge research in the field of mechanical processing.


    When Wei Yongming and Yang Weihua faced this new project, although they failed to come up with a solution, they were able to raise very specific technical issues.


    Everyone who often engages in scientific research must know that being able to refine the problem basically means that half of the success is achieved...


    "Contact measurement is a universal issue in adaptive processing, and we can leave it to be discussed later."


    Chang Haonan already had an idea of ??the current research progress, so he immediately said:


    "But specifically when it comes to adaptive cutting, there is actually a more opportunistic approach..."


    "It is indeed difficult to obtain the deformation of the workpiece directly, but the error of the workpiece comes from the tool, and the runout and deformation of the tool during the machining process are relatively easy to measure."


    As Chang Haonan spoke, he took out two other documents from his briefcase and handed them to the two of them respectively:


    "In this case, we can establish a thin-wall comprehensive dimensional error model, and then perform iterative calculations on the comprehensive dimensional error to directly obtain the required compensation amount, thereby achieving effective compensation of thin-wall dimensional errors..."


    This imaginative idea made the other two people slightly confused.


    At first glance, it seems really simple.


    Integrating the tool error over time will naturally be the error fed back into the machining result.


    But that''s in one dimension.


    In actual cutting processing, the tool itself has at least three degrees of freedom.


    Also consider the fixture, eccentricity, deformation, radial runout...


    Not to mention starting to analyze, just thinking about it makes people''s scalp numb...


    (End of chapter)